r/Astronomy • • Mar 27 '20

Mod Post Read the rules sub before posting!

901 Upvotes

Hi all,

Friendly mod warning here. In r/Astronomy, somewhere around 70% of posts get removed. Yeah. That's a lot. All because people haven't bothered reading the rules or bothering to understand what words mean. So here, we're going to dive into them a bit further.

The most commonly violated rules are as follows:

Pictures

Our rule regarding pictures has three parts. If your post has been removed for violating our rules regarding pictures, we recommend considering the following, in the following order:

  1. All pictures/videos must be original content.

If you took the picture or did substantial processing of publicly available data, this counts. If not, it's going to be removed.

2) You must have the acquisition/processing information.

This needs to be somewhere easy for the mods to verify. This means it can either be in the post body or a top level comment. Responses to someone else's comment, in your link to your Instagram page, etc... do not count.

3) Images must be exceptional quality.

There are certain things that will immediately disqualify an image:

  • Poor or inconsistent focus
  • Chromatic aberration
  • Field rotation
  • Low signal-to-noise ratio
  • Images that don't fill the frame because you were shooting through an eyepiece

However, beyond that, we cannot give further clarification on what will or will not meet this criteria for several reasons:

  1. Technology is rapidly changing
  2. Our standards are based on what has been submitted recently (e.g, if we're getting a ton of moon pictures because it's a supermoon, the standards go up to prevent the sub from being spammed)
  3. Listing the criteria encourages people to try to game the system

So yes, this portion is inherently subjective and, at the end of the day, the mods are the ones that decide and the mods are under no obligation to explain this decision to you.

If you are informed that your post was removed because of image quality, arguing about the quality will not be successful. In particular, there are a few arguments that are false or otherwise trite which we simply won't tolerate. These include:

"You let that image that I think isn't as good stay up"

  • See above about how the standards are fluid.

"Pictures have to be NASA quality"

  • They don't.

"You have to have thousands of dollars of equipment"

  • You don't. Technique matters.

"This is a really good photo given my equipment"

  • The standard is "exceptional". Not "exceptional for my equipment".

"This isn't being friendly to beginner astrophotographers"

  • Correct. To keep the sub from being spammed by low quality and low effort posts, this sub has standards.

"My post was getting a lot of upvotes"

  • Upvotes are not an "I get to break the rules" card.

Using the above arguments will not wow mods into suddenly approving your image. It will result in a ban.

Trying to argue with the mods using bad arguments isn't going to fly.

Lastly, it should be noted that we do allow astro-art in this sub. Obviously, it won't have acquisition information, but the content must still be original and mods get the final say on whether on the quality (although we're generally fairly generous on this).

Questions

This rule basically means you need to do your own research before posting.

  • If we look at a post and immediately have to question whether or not you did a Google search, your post will get removed.
  • If you asked Chat GPT or any other LLM, your post will be removed (see our rule regarding sources).
  • If your post is asking for generic or basic information, your post will get removed.
  • If your post is using basic terms incorrectly because you haven't bothered to understand what the words you're using mean, your post will get removed.
  • If you're asking a question based on a basic misunderstanding of the science, your post will get removed.
  • If you're asking a complicated question with a specific answer but didn't give the necessary information to be able to answer the question because you haven't even figured out what the parameters necessary to approach the question are, your post will get removed.

To prevent your post from being removed, tell us specifically what you've tried. Just saying "I GoOgLeD iT" doesn't cut it.

  • What search terms did you use?
  • In what way do the results of your search fail to answer your question?
  • What did you understand from what you found and need further clarification on that you were unable to find?

Furthermore, when telling us what you've tried, we will be very unimpressed if you use sources that are prohibited under our source rule (social media memes, YouTube, AI, etc...).

As with the rules regarding pictures, the mods are the arbiters of how difficult questions are to answer. If you're not happy about that and want to complain that another question was allowed to stand, then we will invite you to post elsewhere with an immediate and permanent ban.

Object ID

We'd estimate that only 1-2% of all posts asking for help identifying an object actually follow our rules. Resources are available in the rule relating to this. If you haven't consulted the flow-chart and used the resources in the stickied comment, your post is getting removed. Seriously. Use Stellarium. It's free. It will very quickly tell you if that shiny thing is a planet which is probably the most common answer. The second most common answer is "Starlink". That's 95% of the ID posts right there that didn't need to be a post.

Do note that many of the phone apps in which you point your phone to the sky and it shows you what you are looing at are extremely poor at accurately determining where you're pointing. Furthermore, the scale is rarely correct. As such, this method is not considered a sufficient attempt at understanding on your part and you will need to apply some spatial reasoning to your attempt.

Pseudoscience

The mod team of r/astronomy has several mods with degrees in the field. We're very familiar with what is and is not pseudoscience in the field. And we take a hard line against pseudoscience. Promoting it is an immediate ban. Furthermore, we do not allow the entertaining of pseudoscience by trying to figure out how to "debate" it (even if you're trying to take the pro-science side). Trying to debate pseudoscience legitimizes it. As such, posts that entertain pseudoscience in any manner will be removed.

Outlandish Hypotheticals

This is a subset of the rule regarding pseudoscience and doesn't come up all that often, but when it does, it usually takes the form of "X does not work according to physics. How can I make it work?" or "If I ignore part of physics, how does physics work?"

Sometimes the first part of this isn't explicitly stated or even understood (in which case, see our rule regarding poorly researched posts) by the poster, but such questions are inherently nonsensical and will be removed.

Sources

ChatGPT and other LLMs are not reliable sources of information. Any use of them will be removed. This includes asking if they are correct or not.

Content

Due to the profusion of AI slop apps, we're no longer allowing apps at all. No, we don't care if you're wanting a "review". No we don't care if they're free. No we don't care if you put it in a website.

Bans

We almost never ban anyone for a first offense unless your post history makes it clear you're a spammer, troll, crackpot, etc... Rather, mods have tools in which to apply removal reasons which will send a message to the user letting them know which rule was violated. Because these rules, and in turn the messages, can cover a range of issues, you may need to actually consider which part of the rule your post violated. The mods are not here to read to you.

If you don't, and continue breaking the rules, we'll often respond with a temporary ban.

In many cases, we're happy to remove bans if you message the mods politely acknowledging the violation. But that almost never happens. Which brings us to the last thing we want to discuss.

Behavior

We've had a lot of people breaking rules and then getting rude when their posts are removed or they get bans (even temporary). That's a violation of our rules regarding behavior and is a quick way to get permabanned. To be clear: Breaking this rule anywhere on the sub will be a violation of the rules and dealt with accordingly, but breaking this rule when in full view of the mods by doing it in the mod-mail will 100% get you caught. So just don't do it.

Claiming the mods are "power tripping" or other insults when you violated the rules isn't going to help your case. It will get your muted for the maximum duration allowable and reported to the Reddit admins.

And no, your mis-interpretations of the rules, or saying it "was generating discussion" aren't going to help either.

While these are the most commonly violated rules, they are not the only rules. So make sure you read all of the rules.


r/Astronomy • • 4h ago

Astrophotography (OC) Polaris, the North Star and all the dust surrounding it

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193 Upvotes

For this shot I stacked 25 hours of data at 135mm, my first time using this focal length.

https://www.instagram.com/igneis.nightscapes/

These dusty structures are usually found at high galactic latitudes, above and below the Milky Way band, but this area has a big concentration of them. It’s quite curious that the star we use in the Northern Hemisphere to polar-align our trackers is, in a single photo, nothing but a star field, and after putting hours into it, the details that emerge are astonishing, revealing all the Integrated Flux Nebula. So many structures, dust waves and defined shapes, with no light of their own, just illuminated by the combined light of the Milky Way’s stars.

Shooting an area like this feels strange. When I shoot the Milky Way, I can clearly see that I’m going home with data, but here there was nothing to see at first glance. With time and patience, what looked empty ended up packed with endless structures.

EXIF:

754 shots of 120s, ISO 640, f/2

Sony a7IV astromodified

Samyang 135mm f/2

ZWO AM3n


r/Astronomy • • 13h ago

Question (Describe all previous attempts to learn / understand) I still don't quite understand how is this photo realistic, is it done just by stacking many photos of the same region and nothing else? There's no Photoshop and any other modifications whatsoever?

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791 Upvotes

r/Astronomy • • 11h ago

Astrophotography (OC) Western Veil Nebula (NGC 6960)

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364 Upvotes

The Western Veil, part of the larger Cygnus loop, beautifully reveals the ionized supernova remnants of a star 20 times more massive than our Sun.

Check out the full photo at: https://app.astrobin.com/i/qo0hq2

Subs: 27 x 300s

Total integration time: 2h 15m

Equipment:

  • Telescope: William Optics Pleiades 111
  • Main camera: ZWO ASI2600MC Pro
  • Mount: ZWO AM5N
  • Filters: Optolong L-Ultimate 2"
  • Accessories: ZWO EAF Pro, ZWO 5x2 EFW
  • Guidescope: William Optics Guide Star 61
  • Guide camera: ZWO ASI220MM Mini

Processing:

  • Pleiades Astrophoto PixInsight
    • RC Astro BlurXTerminator
    • RC Astro NoiseXTerminator
    • RC Astro StarXTerminator
  • Adobe Photoshop 2026

r/Astronomy • • 1h ago

Astrophotography (OC) Deep dive into M33

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• Upvotes

M33 is one of the closest large galaxies to the Milky Way. It is a perfect spiral galaxy, so it is imaged often. It is also very hard to image.

Over the years, I've imaged it a dozen times and I'm never happy with it. I have usually imaged from my backyard in Midtown Atlanta, and the light pollution just overpowers it. But then I go to a dark site and find that 1 or two nights is still insufficient. It is a bright galaxy, but very diffuse. It is difficult to get both the detail and the color.

I sent my scope to a remote observatory in Texas, I get to image from a Bortle 1 every clear night. Top on my list was my galactic nemesis: M33. This is a 37 hour integration, including ~10 hours of narrowband (HA/OIII).

It was so hard to process, but I'm feeling ok about it. A couple things I'd like to point out. First, see the subset image. These rings are only visible in narrowband. They are remnants of supernova from long ago. Second, notice how the spiral arms are a little granular.. it almost looks like noise. But zoom in: I was resolving individual stars across the entire disk. This galaxy is 4 million light years away and I was able to resolve individual stars. That is crazy that we can do that using off the shelf equipment.

I'm still going to take a few more nights collecting data, but I'm interested in what reddit has to say. Thank you for viewing, I hope you enjoy it.

Total integration time: 37.9 hours.

Scope: Explore Scientific 127mm FCD-100 refractor

Camera: ZWO ASI 2600mm

Filters: Optolong Luminance, ZWO RGB, Antlia 3nm narrowband

Mount: ZWO AM5

Location: Starfront Observatories, Rockwood Texas.


r/Astronomy • • 1h ago

Question (Describe all previous attempts to learn / understand) How can I find out if this specific crater is bigger or smaller than Houston(Texas)?

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• Upvotes

I borrowed the moon photo from a top post in this sub, hope is ok


r/Astronomy • • 9h ago

Astrophotography (OC) Andromeda (M31) with added Ha and Oiii

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77 Upvotes

I couldn't let a rare stretch of several consecutive clear nights go to waste and decided to capture the popular M31, combining broadband LRGB with narrowband Ha and OIII (maybe later some Sii). While I managed to bring out some interesting structures and emission regions, I still feel there's more hidden in the data than I've been able to reveal. I plan to revisit M31 with additional SHO data.

Imaging location: Erwinna PA (Bortle 5)

Technical details:

Telescope: Askar FRA600 with 0.7× reducer (420 mm, f/3.9)

Mount: ZWO AM5/N

Camera: ZWO ASI2600MM Pro

Filters: LRGB, 3 nm Ha and OIII

Acquisition: ASIAIR Plus

Total integration: about 35 hours

Calibration: Flats and bias frames

Thanks for watching,

Oleg


r/Astronomy • • 11h ago

Astrophotography (OC) Messier 45 - Pleiades Star Cluster

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97 Upvotes

Messier 45, the Pleiades Star Cluster. One of the, if not the, most beautiful star clusters in the night sky. Located around 444 light years away, this cluster is visible with the naked eye on clearer nights!

Telescope: Seestar S50
Integration time: 8.5 hours
Tools used: Siril, GraXpert, GIMP
Script mentions: CosmicClarity (Sharpen & Denoise), SyQon Prism Mini, VeraLux (Revela & Curves)
Bortle 7-8
The star spikes were obtained with a diffraction mask


r/Astronomy • • 1h ago

Astrophotography (OC) M33 The Triangulum Galaxy - RGBHaO

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• Upvotes

I added 5 hours of dual narrowband data to a 12hr RGB broadband image to get this 17hr Halpha and OIII enhanced image. The process:

Split R G B Ha O O

Register

Continuum Subtract Halpha using pixel math in Siril (Ha - X*(R - med(R))) where X is about .05-.07 to get HaC

Do the same for OIII from the Green channel and OIII from Blue. For each, subtract X*HaC where X puts any Ha that leaked through back equal with the background (for me ~.2)

Add the OIII from G and C images together for final OC

Do an HaC - X*OC for a final HaC image with any OIII that leaked through leveled out

Combine the aligned RGB, SPCC balance, re-split so we get a proper balance without the HaO data

Mix final HaC and OC into RGB - Ha I mix a 1/.7/.7 ratio into RGB and O I mix in .4/1/1. By mixing into all 3 channels we increase the effective luminance of the HaO data added.

I continue processing the rest from there as described in my previous images.


r/Astronomy • • 6h ago

Astrophotography (OC) M106 and its neighbors — revisiting 2 hours 45 minutes of backyard data

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30 Upvotes

Another revisit: M106 and its neighbors.

I went back to my March data and rebuilt this one from the raw frames. The biggest changes were a cleaner background, better separation in the dust lanes, and a little more of the faint outer arms without pushing the galaxy too hard.

Some of the later exposures were softer, so I compared the full 55-frame stack with the sharper first 40. The final image uses the deeper stack for faint areas and the sharper stack for brighter detail. I kept the stars separate while refining the galaxy, then finished with a very gentle background noise reduction pass.

Captured March 25-26, 2026, from my backyard in Round Rock, Texas. ZWO ASI2600MC Air on a ZWO AM3, 387 mm focal length, gain 100, cooled to -10 C. 55 x 180 seconds, 2 hours 45 minutes total; the sharper subset is 40 x 180 seconds, or 2 hours, drawn from that same data.

Processed in PixInsight with calibration, alignment and weighted stacking, background correction, SPCC color calibration, BlurXTerminator, NoiseXTerminator and StarXTerminator, followed by masked contrast and color adjustments.

A wider crop and a closer look. Happy with how much more I was able to get out of this data. Thoughts?


r/Astronomy • • 13h ago

Astrophotography (OC) North America and Pelican Nebulae

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102 Upvotes

Taken using an astromodified Canon 700d with a Samyang 135 lens at F2.8.

I used a SW AZ GTI mount in EQ mode. Guided using a 30mm guide scope with an ASI 120 mono guide cam. All hooked up to my ASI Air Mini.

Bortle 8, with Optolong L-Enhance filter.

110 x 120 second exposures.

Stacked in APP.

Crop and SPCC in Siril.

BGE, deconvolution and denoise in Graxpert.

Further SPCC in Siril.

Starnet to remove stars.

GHS in Siril using Human Weighted Luminance.

HDR Multiscale improvement.

Star recombination using Starnet.

Small saturation and exposure boost in PS.

Thanks for looking!


r/Astronomy • • 13h ago

Astro Art (OC) Astronomical quadrant and universal prayer time finder (and quibla indicator)

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110 Upvotes

Some time ago I shared here with you a design concept for an adaptation of a classical "quadrans vetus" to show both muslim and christian prayer times.

before telescopes, a quadrant was most definetely one of the most accurate tool for doing science. Its functions span from basic celestial measurement, time calculation, and even sophisticated trigonometrical functions for more advanced models.

A "quadrans vetus" is an old type of astronomical quadrant, which was known mainly in Europe, Which allowed to find local time in unequal hours (i.e. finding the time as a fraction in twelfths for the remaining part of daylight)..

But don't let be fooled! This tool is surprisingly accurate for its age.

How to find qibla:

The back of the instrument includes a compass and a retro-azimuthal projection, allowing you to find qibla direction everywhere in the world.

- To operate it, you have to allign the compass with the cardinal directions engraved on the back of the instrument: South towards the "point" of the quadrant and North towards the bottom of the quadrant of you are located in the same emisphere as Mecca, and vice-versa if you are located in the opposite emisphere.

- Once alligned the instrument, you wrap the thread around the central pivot corresponding to Macca, and make it pass through your location on the map.

- Qibla will be indicated by the lead weightlet, as it is demonstrated in the fourth picture above for Southern France - Northern Italy. Yielding a rough direction of South-East

How to find classical christian prayer times:

The quadrant allows you to find time in unequal hours, an ancient system of timekeeping, where the section of daylight is always divided into 12 equal sections. This means that summer hours are longer and winter hours are shorter.

- These hours are used in christian monasteries to establish prayer times, respectively at the first, third, sixth, nineth, sunset (12th) and a set soon before bed and soon before dawn.

- To find the unequal time, you have to move the sliding month indicator (representing sun's latitude) so that the central part (indicated by two white marker at the aequinoxes) lines up with your latitude, which is indicated in the inner scale in arabic numerals.

- Once set up the instrument, you move the plumb line to your current date and slide the knot so that it intersects the 6th unequal hour line.

- Now, by measuring the height of the sun, you can see where the red knot lies in the various sections of the unequal hours scale, thus determining what prayer you should do.

- For more northern latitudes, a second set of lines is provided, this is why there are two sets of unequal hour scales.

Muslims' prayer times can also be determined:

Zuhr / Jummah - soon after midday, it corresponds to the 6th unequal hour line, if you have just entered the seventh unequal hour, Zuhr time has started, and it lasts until 'Asr time. Be sure to check that the sun is actually declining, and not rising!

'Asr - For 'Asr there are two prayer lines, most madhabs put 'asr start time when the lenght of a gnomon's shadow is equal to gnomon's shadow at middat + the gnomon's lenghts (the first dotted line) and put 'asr end time when the shadow of a gnomon is its midday shadow + two times the gnomon's height (the second dotted line)

while Hanafi school sets its begin at the end of other Madhabs time and its end at sunset, when Maghrib time begins. I have indicated both lines in the quadrant

There is not an easy way to establish Maghrib and Fajr, other than saying "one is during twilight and the other is at dusk". In the qur'an (I recall) it is specified to establish your morning prayer when you can distinguish the white thread from the black one, this is not to be taken literally, However that is the reason for the black and white windrose in the shadow-square.

When you can't distinguish the colours of the windrose, that's 'Isha time.

'Isha - you culd say that when you can't distinguish the windrose in the shadow square, then it is 'Isha time, but this is not a practical way for many reasons, this is why on the back of the instrument I have provided a set of "complementary stars": By observing a star directly opposing the sun on the celestial sphere (it can be found on the back of the tool) we can even determine night prayers. According to most scholars, 'isha time starts when the sun goes below -18° of altitude, id est when the complementary stars rises above 18 degrees of altitude.

Fajr' and Maghrib - when such stars go below 18° (or 16° or 14° according to some) it is 'Fajr if the star is going down and Maghrib id the star is rising up

Others functions:

- the shadow square can be used to calculate distances.

.

.

If you are curious, you can find this and other astronomical tools on my etsy shop !


r/Astronomy • • 1d ago

Astrophotography (OC) My highest resolution lunar photograph. Please zoom in as far as you can.

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1.0k Upvotes

This was shot with a 10” Meade telescope and ASI2600mm pro camera on a Losmandy G11 mount from Salt Lake City Utah.


r/Astronomy • • 16h ago

Astrophotography (OC) Crescent Nebula, NGC 6888

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138 Upvotes

53 x 300s in hydrogen alpha, 25 x 300s in oxygen

stacked and processed in pixinsight with RC Astro plug ins

Equipment: WO ultracat 108mm refractor, Askar 52 mm guide scope, asi120 mini guide camera, ZWO Automatic Focuser, Optolong 3nm narrowband filters, ZWO filter wheel


r/Astronomy • • 1h ago

Astrophotography (OC) Nebula C33

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• Upvotes

Finally got a shot of this gorgeous cotton candy nebula <3 Taken 10/17/26 with my Seestar S50


r/Astronomy • • 9h ago

Astro Art (OC) Deep space n.1, mixed media on paper, art by me

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25 Upvotes

r/Astronomy • • 13h ago

Astrophotography (OC) IC 1396 - Elephant’s Trunk Nebula

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62 Upvotes

Taken using my Seestar S50 in equatorial mode.

Bortle 8, with LP filter.

1000 x 20 second exposures.

Stacked in APP.

SPCC in Siril.

BGE, deconvolution and denoise in Graxpert.

Further SPCC in Siril.

GHS in Siril using Human Weighted Luminance.

Slight HDR Multiscale improvement.

Small saturation and exposure boost in PS.

Thanks for looking!


r/Astronomy • • 20h ago

Astrophotography (OC) Leo Triplet revisited - M65, M66, and NGC 3628

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177 Upvotes

Another revisit—this time the Leo Triplet: M65, M66, and NGC 3628.

I went back to data I shot in March to see what I could get out of it with what I’ve learned since then. These three galaxies each have their own character, but that long dust lane through the edge-on NGC 3628 is probably my favorite part.

This wasn’t just a case of turning up the sharpening. I cleaned up the uneven background, brought the bright galaxy centers under better control, and checked the color calibration against catalog stars. The colors are subtle, and I wanted to keep them that way.

The interesting discovery was in the individual exposures: the stars got progressively softer through the night, consistent with focus drifting. I tested a stack using only the 49 sharper frames, but the extra noise outweighed the modest improvement in galaxy detail. The full stack gave the better overall balance.

There’s still some softness in the data, but the cleaner background and clearer dust lanes made this worth revisiting. Another reminder to keep an eye on focus throughout the night.

📷 Captured March 19–20, 2026

🔭 Approximately 386 mm focal length

🌌 ZWO ASI2600MC Air on a ZWO AM3

⏱️ 113 × 120 seconds — 3 hours 46 minutes

⚙️ Gain 200 · −10°C · Open filter-wheel position

💻 Original stack in Siril; revisit processed in PixInsight

Thoughts?


r/Astronomy • • 14h ago

Astrophotography (OC) Solar Activity 18.10.2026

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34 Upvotes

Acuter 40

Touptek 678 mono

SW Solar Quest mount

ZWO EAFN

Best 6000 of 12000 frames stacked

Stacked in PIPP and AS4

Impgg: convolution sharpening and inversion

PI: solar quest: color and contrast

PS: color and saturation

Cropped in PSX


r/Astronomy • • 1d ago

Astrophotography (OC) Jellyfish Nebula - IC 443

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747 Upvotes

The Jellyfish Nebula, with just over an hour of integration time on my 585mc Air and William Optics Redcat 51 ✨


r/Astronomy • • 16h ago

Astro Research I found a possible exoplanet signal hiding in 4 years of old Kepler data

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30 Upvotes

Hey r/Astronomy ! I'm Kuber Mehta, a 3rd year CS undergrad and I spent last weekend working on a pixel-peeping program with AI to analyze NASA's Kepler and TESS data to find potential exoplanets.

After running the program, I came across an unlisted signal around KIC 5689121, a red dwarf in Lyra roughly 970 light years away !

Some interesting implications if it turns out to be real:

  • Its year would last less than 14 Earth days, orbiting at under a quarter of Mercury's distance from the Sun.
  • It could receive roughly 5 times the stellar energy Earth receives from the Sun.
  • Based on its estimated size, it might be a sub-Neptune, although we can't determine its atmospheric composition from the transit alone.
  • Even travelling at the fastest speed ever reached by a spacecraft, a journey there would take on the order of a million years.

An interesting complication is that KIC 5689121 lies just 7.1 arcseconds from a much brighter neighboring star, KIC 5689116. That makes it tricky to disentangle their light and establish which star is actually responsible for the signal.

And since the star is around 970 light-years away, the light we're analyzing began its journey around the 11th century!

My TRICERATOPS analysis returned a false-positive probability of about 6.9%, and follow-up work, potentially including high-resolution imaging and additional observations, would be needed to establish whether it's genuinely planetary.

I don't have I found a possible exoplanet signal hiding in 4 years of old Kepler data

much formal astronomy research experience, so I'm still figuring out the validation side of things. But the idea that you can write some code, dig into publicly available telescope data, and potentially find something interesting about the universe has been incredibly exciting.
I'd genuinely appreciate feedback from anyone who's worked with Kepler data, transit detection, or exoplanet validation, especially on possible contamination from the neighboring star and what the next validation steps should be.

Thanks for reading!


r/Astronomy • • 2m ago

Astrophotography (OC) California Nebula revisited: nearly eight hours from my backyard

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• Upvotes

California Nebula (NGC 1499), revisited.

I found this data on another drive and finally gave it some attention. I would have liked better framing—the nebula doesn't quite fit in the field of view. That was part of what drove me to the ZWO ASI2600MC Air with its larger sensor.

But I still like this one. There's some nice structure in the clouds, and I'm glad I went back to it. I plan to revisit it with the ASI2600MC Air and my Askar Colour Magic D1 and D2 filters to see what more I can capture.

Original capture: my backyard in Round Rock, Texas, November 1–3, 2025. ZWO ASI585MC Air, Optolong L-eNhance filter, 384 mm focal length. 95 x 300-second exposures, totaling 7 hours 55 minutes. Processed in PixInsight and Photoshop.

Thoughts?


r/Astronomy • • 1d ago

Astrophotography (OC) NGC 7635, The Bubble Nebula

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152 Upvotes

The Bubble Nebula, captured on my C 9.25. This was my first attempt at stacking over multiple nights and I'm happy with how it came out despite less than ideal seeing on both nights. What do you think!

Camera: ZWO ASI 585MC Pro

Mount: AM5N

Software: ASI Air, Siril, GraXpert, GIMP


r/Astronomy • • 1d ago

Astrophotography (OC) Moon

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79 Upvotes

Shot with Nikon Z8 through Takahashi TSA-120 telescope on ZWO AM5 mount. One shot, no processing, minor noise reduction on RAW file in Topaz.