Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: The Thing on Apr 08, 2019, 21:37:26

Title: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: The Thing on Apr 08, 2019, 21:37:26
We've got  friends staying so only had a bit of time to spend on this. This is a crop of the interesting bits, the big version isn't binned.  I've done a minimum of processing, a little stretching, sharpening and so on. Colour may be a bit off but I blame it on Startools colour calibration :roll:

Exposure details: 18 x 250s, Gain 121, Offset 4, CMOS Temperature -15c
Image date, time and location:   2019-04-07 23:00CET Manche, France
Telescope aperture and focal ratio:   TS1506UNC f4, TS Komakorr
Camera and filters used:   ZWO ASI294MC Pro, Baader Neodymnium 1.25" filter
Processing applied:   DSS 4.x, Startools

(http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/normal_M3_1h2m30s_E250_G121_O4_T-15_DSS_ST.jpg) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/M3_1h2m30s_E250_G121_O4_T-15_DSS_ST.jpg)
Title: Re: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: RobertM on Apr 08, 2019, 21:51:42
That's pretty good for a quick one Duncan  8). You've certainly got plenty of colour to play with and as you say that's probably Startools playing up  ;)

There's a little drift in there, not sure whether that's a stacking artefact or guiding (dangly cables) causing it. 

It's great to see you finally producing some images from that camera.

Best wishes
Robert
Title: Re: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: Carole on Apr 09, 2019, 10:12:08
I look forward to seeing this when you have more time to process it, as you say the colour is a bit off.  Maybe Pixinsight would be a better option for processing.  So is this the binned version?

I've never tried Startools, it does seem to be causing you a few problems.

Carole
Title: Re: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: NoelC on Apr 09, 2019, 11:53:04
Very good Duncan
Excellent detail well done.
Tried Startools demo version, don't like it, be interested to see you use it.

Noel
Title: Re: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: ApophisAstros on Apr 09, 2019, 12:32:23
Nice one, Duncan,
Roger
Title: Re: M3 and NGC5263, 2019-04-07 23:00CET Manche, France
Post by: MarkS on Apr 09, 2019, 19:32:42
The green colour in the middle is really bizarre :(

If you can fix it, that'll be a good image.

Mark