Hemisphere:  Northern  ·  Constellation: Cancer (Cnc)
Getting plate-solving status, please wait...
Abell-31 (Sh2-290), 



    
        

            Kathy Walker
Abell-31 (Sh2-290)
Powered byPixInsight

Abell-31 (Sh2-290)

Getting plate-solving status, please wait...
Abell-31 (Sh2-290), 



    
        

            Kathy Walker
Abell-31 (Sh2-290)
Powered byPixInsight

Abell-31 (Sh2-290)

Acquisition details

Dates:
March 22, 2021 ·  April 14, 2021 ·  April 15, 2021 ·  May 1, 2021 ·  May 2, 2021 ·  March 23, 2022 ·  March 27, 2022 ·  March 30, 2022
Frames:
Astrodon H-alpha 5nm: 58×600(9h 40′) bin 1×1
Astrodon OIII 5nm: 46×900(11h 30′) bin 1×1
Integration:
21h 10′
Avg. Moon age:
15.81 days
Avg. Moon phase:
38.88%

Basic astrometry details

Astrometry.net job: 4470186

RA center: 08h54m18s.0

DEC center: +08°5519

Pixel scale: 1.204 arcsec/pixel

Orientation: 183.052 degrees

Field radius: 0.629 degrees

Resolution: 3036x2220

File size: 556.5 KB

Data source: Backyard

Description

This very faint planetary nebula is a work in progress. I need a lot more cleaner data, on moonless nights, before I am happy with it.

Comments

Revisions

  • Abell-31 (Sh2-290), 



    
        

            Kathy Walker
    Original
  • Abell-31 (Sh2-290), 



    
        

            Kathy Walker
    D
  • Abell-31 (Sh2-290), 



    
        

            Kathy Walker
    E
  • Final
    Abell-31 (Sh2-290), 



    
        

            Kathy Walker
    G

D

Description: More data, more processing time. I think I can live with this version. At least until next year. Stars have colour (HOO) now, too.

Uploaded: ...

E

Description: I added another 10 hours of exposure time to produce a much cleaner version of the image.

Uploaded: ...

G

Description: Improved star colours

Uploaded: ...

Sky plot

Sky plot

Histogram

Abell-31 (Sh2-290), 



    
        

            Kathy Walker