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Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy
Sh2 85 A Very Obscure Sharpless2 Object

Sh2 85 A Very Obscure Sharpless2 Object

Technical card

Resolution: 500x500

Dates:July 28, 2019

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 16x240" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 16x240" bin 1x1
Astrodon H-alpha 5nm: 55x1800" bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 16x240"

Integration: 30.7 hours

Avg. Moon age: 25.52 days

Avg. Moon phase: 17.12%

Astrometry.net job: 2856453

RA center: 285.824 degrees

DEC center: 25.826 degrees

Pixel scale: 1.221 arcsec/pixel

Orientation: 0.074 degrees

Field radius: 0.120 degrees

Locations: Stanford Faculty Observatory, Stanford, California, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Well, I have worked my way down the Sh2 list and this is in there. I thought I had missed it but finally came across almost exactly the same image on the Italian Wikipedia site (they have the best images):

https://it.wikipedia.org/wiki/Sh2-85

It is the tiny bit of cloudiness to the right of the central star (this fits with the location in TSX.

This is the translation of the Italian:

Sh2-85 is a small H II region visible in the constellation of Lyra.

It is located in the southern part of constellation, on the border with Vulpecula; is extremely weak and turns with difficulty even in long exposure. The most popular time for his remark in the evening sky falls between June and November; his declination moderately borealis causes can be observed more easily from the regions North of the Equator.

This is a very weak H II region located on the Orion arm about 400 parsecs (1300 light years) from the solar system,[2] at the large schools Dark dust mask the milky way towards Vulpecula, although this Nebula is a Galactic latitude decidedly highest; It receives the ionizing radiation of HD 177347, a Blue-White Star of spectral class B8 having an apparent magnitude of 6.99. [4]

Comments

Author

jerryyyyy
jerryyyyy
License: None (All rights reserved)
760
Like

Revisions

  • Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy
    Original
  • Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy
    B
  • Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy
    C
  • Final
    Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy
    D

B

Slight clipping change.

C

Drizzle integration of 55 HAx1800s subframes.... probably see Ha slightly better but you need optimism.

D

Placing 500x500 pixel images up on all my small objects to get scale correct.

Sky plot

Sky plot

Histogram

Sh2 85 A Very Obscure Sharpless2 Object, 





    
        

            jerryyyyy