Leo I Galaxy

Posted: Mar 19th, 2025

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NGC

Technical Info

Telescope/Lens: Sky-Watcher 150PDS 150/750

Camera: Canon 550da

Mount: HEQ5 Pro

Software: Siril, GraXpert, Photoshop, Cosmic Clarity

Exposure:

240 x 30" ISO/Gain: 400

Orange zoneLight Pollution:

Gomel, Russia

Mar 18th, 2025

2 h 0 m

805

Dwarf galaxy Leo I near the star Regulus in the constellation Leo

Resolution: 3639x2428 px

Scale: 14723 KB

DarthMaxus

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Comments

Mozgovoy Maksim

You should put an aperture mask on the primary mirror to avoid such large spikes on the stars.

19 Mar, 2025 Reply

Darthmaxus Replied to Mozgovoy Maksim

Well, I don't know, I'm not really keen on sacrificing the aperture.

20 Mar, 2025 Reply

Mozgovoy Maksim Replied to Darthmaxus

Well, it's not a significant sacrifice at all—just one-tenth. You just need to cover the clips that hold the primary mirror.

20 Mar, 2025 Reply

Darthmaxus Replied to Mozgovoy Maksim

Against an unevenly lit background, will this help? Or is it due to light pollution and can be solved with filters like dual-band?

20 Mar, 2025 Reply

Mozgovoy Maksim Replied to Darthmaxus

I'm not entirely sure what you're referring to. As I noticed, some of your photos have "dark spots" in the center of the frame. This is due to incorrect background alignment in Graxpert or any other similar program. FLAT frames could also improve the background. If you could share the unprocessed stack, I could take a look at what the issue might be.

20 Mar, 2025 Reply

Darthmaxus Replied to Mozgovoy Maksim

You can try, where should I send it?

21 Mar, 2025 Reply

Mozgovoy Maksim Replied to Darthmaxus

You can reach me on Telegram - https://t.me/masfett

21 Mar, 2025 Reply

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