DeepSkyHosting

NGC5033 Water Bug Galaxy

Category:Deep Sky
Published:
400
NGC5033 Water Bug GalaxyNGC 5033
Resolution:
1834x1350 px
File size:
681 KB

Photo description / processing

This work was done specifically to compare two telescopes using the not very large galaxy NGC 5033 (10.7'x5.3'): the Askar SQA 106 (509 mm f/4.8) and the Celestron Edge HD 8 (1400 mm f/7, with a 0.7 focal reducer). The cameras, however, are different: the Askar used a ZWO ASI 183 MC with 2.4 µm pixels, while the Celestron used a ZWO ASI 2600 MC with 3.76 µm pixels. The integration time is also different: 3 h 30 min for the Askar and 4 h 50 min for the Celestron. I'm not drawing any conclusions—judge for yourself.

Technical information

Telescope/Lens
Askar SQA 106
Camera
ZWO ASI 183 MC Pro
Mount
iOptron HAE43 C
Guide Scope
Askar 52mm F4
Guide Camera
ZWO ASI 120 MM mini
Software
SharpCap 4.0, Siril, Adobe Photoshop
Location
Адыгея, Станица Даховская, Россия

Light pollution

Green, Bortle 4 zone

Date taken

Exposure

  • 42 × 300″ · ISO/Gain: 120 ·

Total exposure: 3 h 30 m

Photo versions

NGC5033 Water Bug Galaxy
Current photoUpdated
NGC5033 Water Bug Galaxy

May 31st, 2026

3 h 30 m

This work was done specifically to compare two telescopes using the not very large galaxy NGC 5033 (10.7'x5.3'): the Askar SQA 106 (509 mm f/4.8) and the Celestron Edge HD 8 (1400 mm f/7, with a 0.7 focal reducer). The cameras, however, are different: the Askar used a ZWO ASI 183 MC with 2.4 µm pixels, while the Celestron used a ZWO ASI 2600 MC with 3.76 µm pixels. The integration time is also different: 3 h 30 min for the Askar and 4 h 50 min for the Celestron. I'm not drawing any conclusions—judge for yourself.

NGC5033 Water Bug Galaxy
NGC5033 Water Bug Galaxy

May 13th, 2026

4 h 50 m

Haven't shot deep-sky with the old, good Celestron Edge HD 8" for quite a while, and I'm already preparing material on the same object with the Askar SQA 106 telescope. It will be interesting to compare.

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Comments

yas
In both cases, is the binning 1x1? How were the images aligned to the same pixel scale — if using AlignByCoordinates, which of the two was used as the reference?
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