The Rosette Nebula (Caldwell 49)

Posted: Jan 19th, 2023

Technical Info

Telescope/Lens: Williams Optics Zenithstar 81 APO

Camera: ZWO ASI533MM Pro

Mount: HEQ5PRO SynScan GoTo

Guide Scope: William Optics UniGuide 32

Guide Camera: ZWO ASI 290MM mini

Software: PixInsight

Accessories: William Optics 0.8x Reducer/Flattener

Exposure:

1 x 600" ISO/Gain: 100 - Antlia 3nm Narrowband H-alpha 1.25"

1 x 600" ISO/Gain: 100 - Antlia 3nm Narrowband Oxygen III 1.25"

1 x 600" ISO/Gain: 100 - Antlia 3nm Narrowband Sulfur II 1.25"

Orange, Bortle 6 zone:

Stanica Dinskaya, Russia

Jan 12th, 2023

https://astrodinsk.site/?p=...

30 m

1559

26

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Resolution: 2986x2977 px

Scale: 12506 KB

313

Experimental imaging on the first clear night with the new Antlia 3nm filters.

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Comments

Is this exactly one frame per image?

20 Jan, 2023 Reply

Astrodinsk Replied to Oleg Novoselov

Yes, the stars are even a bit trailed there—my mount couldn't handle the 600-second exposure, I need to adjust it. But the filters performed really nicely.

20 Jan, 2023 Reply

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