NGC2237

Posted: Feb 10th, 2025

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Technical Info

Telescope/Lens: Askar 103 APO 0.6X

Camera: ZWO ASI294MM Pro

Mount: EQ6-R

Guide Scope: M54 OAG

Guide Camera: ZWO ASI 174mm

Exposure:

19 x 300" ISO/Gain: 120 - Optolong Sii

12 x 300" ISO/Gain: 120 - Optolong Ha

18 x 300" ISO/Gain: 120 - Antlia Oiii

Yellow zoneLight Pollution:

Barnaul, Russia

Feb 8th, 2025

4 h 5 m

892

19

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Resolution: 3681x2507 px

Scale: 42510 KB

36

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Comments

Hello! Could you tell me how you shoot calibration frames for the 294mm and which ones you use? Thank you in advance!

5 Mar, 2025 Reply

Dmcl Replied to Lzaza

Good day. I shoot darks in the refrigerator. That is, I have a pre-prepared library of darks for different temperatures and exposures. I do not shoot offsets. Flats, of course, I take immediately after the shooting session for each filter. Usually, 50 frames.

6 Mar, 2025 Reply

Lzaza Replied to Dmcl

What exposure length do you use for flats?

6 Mar, 2025 Reply

Dmcl Replied to Lzaza

So it all depends on the brightness of the lamp. I get about one second.

7 Mar, 2025 Reply

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