Seestar 30P, Bortle 6.7, used NINA to capture. 30x10sec, 50x60sec processed in Siril LR mobile for masks and coloring.

First time capturing this with having only one good late night (last night the fog rolled in). I'm still shooting for 4hrs of integration time but I've got a good base to build off of.

Tech specs: https://astrobin.com/kkkil0/

Total integration: 8h 40m

Integration per filter:

- Hα: 4h 10m (50 × 300s)

- SII: 3h 40m (22 × 600s)

- OIII: 50m (5 × 600s)

Equipment:

- Telescope: Explore Scientific ED APO 152mm f/8 FCD1 ED

- Camera: ZWO ASI6200MM Pro

- Mount: 10Micron GM2000 HPS II

- Filters: Chroma H-alpha 5nm Bandpass 50x50 mm, Chroma OIII 3nm Bandpass 50x50 mm, Chroma SII 3nm Bandpass 50x50 mm

- Accessories: Explore Scientific 3" 0.7x Reducer (FFFR507X-00), PrimaLuceLab EAGLE4S, Starlight Xpress Maxi USB filter wheel, WandererAstro WandererCover V4-EC

- Software: Pleiades Astrophoto PixInsight, Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)

https://app.astrobin.com/i/lmhurr

The beautiful Double Cluster! These two star clusters are NGC 869 and NGC 884. They are about 7,000 light-years away and only separated by a few hundred light-years. Estimated to be about 13 million years old!

Telescope: Seestar S50
Integration time: 1 hour (it's a 2-panel mosaic, so 1 hour on each panel)
Tools used: Siril, GraXpert, GIMP
Script mentions: DeepSNR, HDR_multiscale, VeraLux (Revela & Curves)
Bortle 8-9

Hi! I'm having a little project of mine, and I had a huge problem with finding something characteristic about the places of the Milky Way that are shown in red in the pictures.

As it's for my imaginary sci-fi universe, I should have ask this in other sub-reddits, but I think that going with these questions to the astronomy profesionals would get me the best prominent answers.

So, back to the question. I want tho know:

1 - If these places are theoretically good locations for setting up a habitable planet

2 - what is special about these regions of the Milky Way? Some celestial objects? Stars? Nebulas? Is anything even known about parts of our galaxy further away than 1000 light years from our planet?

I tried to find infromations on google but found nothing, as my question is too specific. Even used AI as the last resolve, but also haven't found anything. The Milky Way maps only show star clusters above or below the main disc as far as im concerned.

I posted this about a month ago, but since then, I went back and made a few tweaks I'm happy with:

- Fine rotation to square the diffraction spikes

- Star reduction

- Better background extraction / noise reduction

- Saturation adjustments

- Stretches to make the core a bit brighter than the outer disk

- Rejecting streaked frames

Gear:

• Orion 6" f/4 astrograph

• Baader Mark III multi-purpose coma corrector

• Astromania UV/IR cut filter

• ZWO ASI184MC OSC uncooled

• Celestron Advanced GT equatorial mount

Acquisition: Bortle 1-2 site with no moon

• Approx. 120 x 60s subs, 300 gain, in SharpCap

• No guiding

• 10 x 60s darks

• 100 flats

• 100 biases

Processing: All in Siril

• OSC preprocessing script to stack and align, with filter added to skip frames with roundness score under 0.5

• Background extraction

• Spectrophotometric color calibration

• GHS transformation

• Star reduction

• Black point adjustment

• Saturation

Full resolution available on my Telescopius page: https://telescopius.com/pictures/view/287476/deep_sky/ngc-592/messier-33-the-triangulum-galaxy/by-other_mike

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?

Hi all, I just got my SA-100 -- taking my first steps on spectroscopy. By looking at a white light bulb with it, I can notice a few "spots" on the spectra, where they show a bit weaker than the surroundings. As I move my eyes slightly in relation to the filter, I can see that the spots are on the filter itself, they are not a feature of the spectra. I wonder if this is normal? These spots would definitely interfere with the results. They could be averaged out by capturing many samples, and maybe this is the recommended practice anyway, but I don't know, I was expecting something really "pristine" here. I cleaned it very gently with a microfiber cloth I use on my other filters, but nothing changed. Since this is my first ever diffraction grating, I don't know exactly what I should expect, then I'd like to hear your thoughts. Thanks in advance.

I was 12 in the winter of 2009 and lived in Eastern Massachusetts. My dad pulled me outside late at night to see a meteor/comet that was supposed to be visible in the sky. I was 12 and a brat and basically brushed him off, so I don’t remember what it looked like.

I would really like to see a video of that meteor/comet, if possible. Is this enough information to find it? I tried googling but couldn’t come up with much since I don’t know the date exactly.

I was thinking… If the Solar System is orbiting around the center of the galaxy, and Voyager 1, or any other space probe, were traveling in the opposite direction to the Solar System’s orbital motion, would it move away faster?