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Caldwell 14 Double Cluster in Perseus

Category:Deep Sky
Published:
215
Caldwell 14 Double Cluster in PerseusNGC 869NGC 884
Resolution:
4285x2410 px
File size:
10242 KB

Photo description / processing

The last photo with the CAA; today I removed it from the optical train because it still introduces a tilt that isn't noticeable on a small sensor, but with a larger sensor it's obvious. Now we'll manually adjust the required angles; it's a shame because it's a good piece of equipment, but you still have to keep an eye on it—it might act up. In any case, everything that happens, happens for the best.

Technical information

Telescope/Lens
Askar 71F
Camera
ZWO ASI2600MM PRO
Mount
JUWEI 14
Guide Scope
ToupTek GS-200 AR
Guide Camera
Zwo ASI662MC
Accessories
CAA, EAF, EFW, ASIAIR MINI, Askar Reducer x 0.75, Gemini PowerBox
Software
Siril, Adobe Photoshop, Adobe Lightroom, StarNet++
Location
Самара, Россия

Light pollution

Yellow, Bortle 5 zone

Date taken

Exposure

  • 16 × 120″ · ISO/Gain: 100 · Optolong L ·
  • 3 × 120″ · ISO/Gain: 100 · Optolong R ·
  • 3 × 120″ · ISO/Gain: 100 · Optolong G ·
  • 3 × 120″ · ISO/Gain: 100 · Optolong B ·

Total exposure: 50 m

Comments

Oleg Novoselov
It needs to be tightened up and it will be good.
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poppy8microReply to Oleg Novoselov
The clamping plate itself with the thread, which one?
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Oleg NovoselovReply to poppy8micro
To be honest, I don't remember anymore, but definitely not from the outside — small keys are needed there, and I didn't have them on hand. I went to a friend's workshop; before that, I also struggled with it and was about to give up and just turn the corrector as a whole, but I tightened it, and it's been working fine for three years now.
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poppy8microReply to Oleg Novoselov
Let me take a look. I just looked and turned the plate, and it seems some screws were slightly loose. Inside, the plate is held by Phillips screws that are tight, but underneath them might be what you're talking about. I'll check online. Thanks.
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