Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7076  ·  PK101+08.1
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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB

Getting plate-solving status, please wait...
Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
Powered byPixInsight

Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB

Imaging Telescopes Or Lenses
Skywatcher 200p Newtonian
Imaging Cameras
ATIK 314L+ Mono
Mounts
Sky-Watcher AZ-EQ6 GT
Filters
Baader Ha 1.25" 7nm · Baader B 1.25'' CCD Filter · Baader G 1.25'' CCD Filter · Baader R 1.25'' CCD Filter · Baader OIII 1.25" 8.5nm
Accessories
Starlight Xpress SX USB Filter Wheel 7x1.25"
Software
Stark Labs PHD 2.6.1 · ASCOM +EQMOD · Main Sequence Software SequenceGeneratorPro · PixInsight version 1.8
Guiding Telescopes Or Lenses
Skywatcher ST80 Guidescope
Guiding Cameras
ZWO ASI130MM

Acquisition details

Dates:
Sept. 30, 2018
Frames:
Baader B 1.25'' CCD Filter: 9x180" (27') -15C bin 1x1
Baader G 1.25'' CCD Filter: 9x180" (27') -15C bin 1x1
Baader Ha 1.25" 7nm: 12x600" (2h) -15C bin 1x1
Baader OIII 1.25" 8.5nm: 12x600" (2h) -15C bin 1x1
Baader R 1.25'' CCD Filter: 9x180" (27') -15C bin 1x1
Integration:
5h 21'
Darks:
29
Flats:
31
Bias:
149
Avg. Moon age:
20.13 days
Avg. Moon phase:
70.83%
Bortle Dark-Sky Scale:
6.00
Temperature:
10.00

RA center: 21h26m24s.48

DEC center: +62°5332.2

Pixel scale: 1.328 arcsec/pixel

Orientation: -105.975 degrees

Field radius: 0.304 degrees

More info:Open 

Resolution: 1341x963

Locations: Un-stable Observatory, back garden., Huddersfield, West Yorkshire, United Kingdom

Data source: Backyard

Description

Another ticked off my Abell list. This small pn is strong in both Ha and OIII, with the RGB also producing a fainter rendition of Abell 75. So a good target for NB and broadband with a larger scope.

Taken over a couple of nights in late September, with clear nights becoming rarer than hen's teeth again.

Comments

Revisions

  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
    Original
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
    B
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
    C
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
    D
  • Final
    Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers
    E

B

Description: A crop of A.

Uploaded: ...

C

Description: Took my own advice offered to another imager and removed the purple tinge. Simply invert the image and run SCNR on it, then re-invert bye bye purple. I read about this method on the PI forum but have no idea who to give a credit too.

Uploaded: ...

D

Description: D: 2 years ago I forgot to show the rgb image. Finally here it is.

Uploaded: ...

E

Description: E: Lots of background Ha in this area, It's very noisy so I usually hide it as 4 hours NB isn't enough to get a clean image with my skies. Here's the HOO with RGB stars warts an' all.

Uploaded: ...

Sky plot

Sky plot

Histogram

Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, 



    
        

            Pat Rodgers

In these public groups

UK Astro-Imaging