Notices by Mallory (malcircuit@pixelfed.social)

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Mallory (malcircuit@pixelfed.social)'s status on Tuesday, 25-Nov-2025 12:46:48 JST Mallory

This is the last big project in my backlog: NGC 281, a.k.a., the Pacman Nebula in HOS narrowband.

For the uninitiated, HOS means:
- Red = hydrogen
- Green = oxygen
- Blue = sulphur

I decided to play off of the Pacman name and use a palette that gave the nebula a nice golden yellow color.

Full resolution and technical details: https://app.astrobin.com/i/d916kq

#astronomy #astrophotography
In conversation about 5 days ago from pixelfed.social permalink
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1. A field of stars with a vibrant yellow, orange, and pink cloud of gas in the center. It vaguely has the shape of Pacman, as in, it's round and with a large triangular notch like a pie slice
  https://pxscdn.com/public/m/_v2/606629035835781788/3dc769ff5-aadbb1/hi74GAltf3oQ/fN70TnSewhUimTcRBFcoYUFm9rlI8eoc6rq3otYn.jpg
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Mallory (malcircuit@pixelfed.social)'s status on Tuesday, 18-Nov-2025 10:02:02 JST Mallory

Another pic that's been in the backlog for a while. This is NGC 7139, a.k.a., the Small Cluster Nebula or the Rosebud Nebula. This is a reflection nebula about 3,300 light-years away, and captured in "true color".

I was hoping to collect a lot more data on this one, but the weather has thwarted me (at least for this year).

Details:
- Celestron 8" EdgeHD (w/ 0.7x reducer) + ZWO ASI585MC
- 126x180s (6.3 hr) UV+IR cut
- Bortle 6/7
- PixInsight w/ BlurX, NoiseX, and StarX

#astronomy #astrophotography
In conversation about 12 days ago from pixelfed.social permalink
Attachments
1. A field of stars with faint cloud of dust and gas at the center, glowing blue and brown from reflected star light
  https://pxscdn.com/public/m/_v2/606629035835781788/3dc769ff5-aadbb1/lwn7t2qi2PU1/zNqCj073HloSAOKpuXiulkcfWmCUjskRXeWemO0t.jpg
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Mallory (malcircuit@pixelfed.social)'s status on Monday, 04-Aug-2025 09:58:36 JST Mallory

Because it was so smoky out last night and I barely got enough signal to do anything with, I decided to take some artistic liberties with the end product instead of worrying about accuracy or whatever.

Behold, the Lobster Claw Nebula (SH 1-109, left), the Bubble Nebula (NGC 7635, right), and NGC 7538 (bottom)

#astronomy #astrophotography
In conversation about 4 months ago from pixelfed.social permalink
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1. A field of stars filled with multicolored clouds of gas, one of which looks like a giant lobster's claw, and another like a soap bubble
  https://pxscdn.com/public/m/_v2/606629035835781788/33cc9b949-339791/i1Kpee61B4yI/d0SSvqwOctNvPXSW1ODNJFxdu4muOo1CGxSXhOAx.jpg
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Mallory (malcircuit@pixelfed.social)'s status on Thursday, 20-Feb-2025 14:54:19 JST Mallory

Here's a capture I never got around to until now:

A great big plasma eruption I caught on Sept 7, 2024 — 1 of 6

This is 3.2 hours worth of images condensed down to 14.6 seconds (790x).

I took forever to process this, but at least I learned some new tricks along the way that significantly improved the quality of the end result. I almost want to go back and re-do some of my other solar timelapses because it's such an improvement.

#solar #astrophotography #astronomy

In conversation about 9 months ago from pixelfed.social permalink
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Mallory (malcircuit@pixelfed.social)'s status on Thursday, 16-Jan-2025 07:22:40 JST Mallory

I finished up processing what I got from the Mars occultation on Monday night.

Here's a timelapse of Mars disappearing.

#astronomy #astrophotography

In conversation about 11 months ago from pixelfed.social permalink
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Mallory (malcircuit@pixelfed.social)'s status on Saturday, 19-Oct-2024 12:45:22 JST Mallory

Got some good data on comet C/2023 A3 (Tsuchinshan-ATLAS) last night, but still working on processing it.

Something about comets that's not obvious is that they move, and it's not a trivial amount over an hour. So processing isn't as simple. I'm still learning how to do it.

Here's a 30 minute timelapse from last night to show what I mean. Also, satellites suck.

(Bonus shot of the M5 cluster in the background)

#astrophotography #astronomy

In conversation about a year ago from pixelfed.social permalink

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Notices by Mallory (malcircuit@pixelfed.social)

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