Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: JohnH on Mar 21, 2025, 16:32:24

Title: IC 443
Post by: JohnH on Mar 21, 2025, 16:32:24
(https://gallery.orpington-astronomy.org.uk/albums/userpics/10113/normal_Jellyfish_March_2025.jpg)

(For some reason I cannot link to the TIFF file uploaded on Astrobin)

For this image I used HaO as the Luminance layer. The very bright star upper right is "Propus" a variable red giant double star ands played havoc with that part of the image.

Data:
Location - Bromley (Bortle 7) Dates - 3rd, 4th and 20th March 2025
Telescope - Sharpstar 15028 HNT (150mm f2.8)
Camera - ZWO ASI1600MM Pro
Control - ZWO ASIAir Pro
Mount - iOptron CEM 25P

Processing - Pixinsight and Affinity Photo 2

R: 60sec x 90
G: 60sec x 60
B: 60sec x 75
Ha: 360sec x 15
HaO: 240sec x 28 (12 additional frames lost to cloud cover)

Total Image time: 7hrs 7mins.

Regards,

John
Title: Re: IC 443
Post by: Carole on Mar 21, 2025, 16:35:48
Hi John, I'll wait and see if you revise the stars before putting this on Members images. 

Nebulosity is good.  Can help wth Pixinsight or Affinity Photo - Sorry. 
Title: Re: IC 443
Post by: Rick on Mar 21, 2025, 20:33:11
Quote from: JohnH on Mar 21, 2025, 16:32:24(For some reason I cannot link to the TIFF file uploaded on Astrobin)
Were you trying to link it as an IMG or as a URL?
Title: Re: IC 443
Post by: JohnH on Mar 22, 2025, 08:17:07
Quote from: Rick on Mar 21, 2025, 20:33:11
Quote from: JohnH on Mar 21, 2025, 16:32:24(For some reason I cannot link to the TIFF file uploaded on Astrobin)
Were you trying to link it as an IMG or as a URL?

I copied the link from Astrobin and pasted it into "insert image". I noticed that the link includes "blob" in the URL which I don't recall seeing before.
Title: Re: IC 443
Post by: Rick on Mar 22, 2025, 09:50:18
Quote from: JohnH on Mar 22, 2025, 08:17:07I copied the link from Astrobin and pasted it into "insert image".
Might it, as an alternative, be worth just posting the URL of the Astrobin page?
Title: Re: IC 443
Post by: The Thing on Mar 22, 2025, 10:49:08
Quote from: JohnH on Mar 22, 2025, 08:17:07
Quote from: Rick on Mar 21, 2025, 20:33:11
Quote from: JohnH on Mar 21, 2025, 16:32:24(For some reason I cannot link to the TIFF file uploaded on Astrobin)
Were you trying to link it as an IMG or as a URL?

I copied the link from Astrobin and pasted it into "insert image". I noticed that the link includes "blob" in the URL which I don't recall seeing before.

Blob is database speak for binary large object, a way of storing pictures amongst other things.

You need to use the URL of a jpeg or PNG version of your image rather than TIF which browsers can't display. I've only dabbled in Astobin so not much help beyond that.

HTH Duncan
Title: Re: IC 443
Post by: JohnH on Mar 22, 2025, 10:54:44
Quote from: The Thing on Mar 22, 2025, 10:49:08
Quote from: JohnH on Mar 22, 2025, 08:17:07
Quote from: Rick on Mar 21, 2025, 20:33:11
Quote from: JohnH on Mar 21, 2025, 16:32:24(For some reason I cannot link to the TIFF file uploaded on Astrobin)
Were you trying to link it as an IMG or as a URL?

I copied the link from Astrobin and pasted it into "insert image". I noticed that the link includes "blob" in the URL which I don't recall seeing before.

Blob is database speak for binary large object, a way of storing pictures amongst other things.

You need to use the URL of a jpeg or PNG version of your image rather than TIF which browsers can't display. I've only dabbled in Astobin so not much help beyond that.

HTH Duncan

Thanks, that is useful to know.