NGC4565

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Rudi
Posts: 75
Joined: 08 Jan 2019, 04:47

NGC4565

Post by Rudi » 26 Mar 2020, 05:41

Needle Galaxy, NGC4565, my favorite edge on galaxy.
Captured over two nights this weekend.

29 x 480 sec L
28 x 480 sec R
29 x 480 sec G
27 x 480 sec B
Total 15 hours and 4 minutes
+ darks/flats/flatdarks

ASI 1600 MM Pro @gain=139 / T=-20°C
Sky-Watcher Quattro 8" f/3.9 + Sky-Watcher Aplanatic Corrector
Sky-Watcher NEQ6 Pro
Pre and post processing sololy with AstroArt 7

Click the image to see it in full resolution.
Image
/Rudi

Dunmunro
Posts: 85
Joined: 10 Jan 2019, 01:11

Re: NGC4565

Post by Dunmunro » 26 Mar 2020, 22:31

Two thumbs up!

Gilbert
Posts: 8
Joined: 03 Apr 2020, 22:45

Re: NGC4565

Post by Gilbert » 05 Apr 2020, 16:02

Superbe cliché !!!
Comment revenir sur une image au pixel près et recommencer des poses photos ?
Bien cordialement

Dunmunro
Posts: 85
Joined: 10 Jan 2019, 01:11

Re: NGC4565

Post by Dunmunro » 05 Apr 2020, 22:34

Gilbert wrote:
05 Apr 2020, 16:02
Superbe cliché !!!
Comment revenir sur une image au pixel près et recommencer des poses photos ?
Bien cordialement
Speaking for myself, I use the platesolve assisted centring:

Telescope control -> Center -> Goto (plate solving).

I find that it will centre my CEM60 or CEM120 to within ~15 arc seconds on successive nights, which is quite sufficient for the Preprocessing Image Aligning and Stacking to work.

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Rudi
Posts: 75
Joined: 08 Jan 2019, 04:47

Re: NGC4565

Post by Rudi » 06 Apr 2020, 05:26

Gilbert wrote:
05 Apr 2020, 16:02
Superbe cliché !!!
Comment revenir sur une image au pixel près et recommencer des poses photos ?
Bien cordialement
I used Google translate, my French is almost non existent:
Gilbert wrote:
05 Apr 2020, 16:02
Superb shot !!!
How to go back to an image to the nearest pixel and start photo poses again?
Best regards
I do something similar to Dunmunro:

1) In Cartes du Ciel, slew to target
2) Take a short image (1-2 sec) in AstroArt
3) Platesolve in AstroArt
4) Sync telescope in AstroArt
5) Have a look in Cartes du Ciel, if target is not centered good enough, go to 1), otherwise done...

With my permanent mounted NEQ6 Pro, which is well polaraligned (within a fraction of an arc minute), it usually just takes two iterations, then my target is in dead center of the FOV.
/Rudi

Gilbert
Posts: 8
Joined: 03 Apr 2020, 22:45

Re: NGC4565

Post by Gilbert » 06 Apr 2020, 16:43

Bonjour,
Merci beaucoup pour vos réponses. Je vais tester la procédure.
Bon ciel !

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