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Sh2-87, 





    
        

            Gary Imm
Sh2-87

Sh2-87

Technical card

Resolution: 5342x3539

Dates:Sept. 8, 2019Sept. 9, 2019

Frames:
Astrodon Blue 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1
Astrodon Ha 31mm 5nm: 24x300" (gain: 200.00) -12C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1

Integration: 5.0 hours

Avg. Moon age: 10.10 days

Avg. Moon phase: 77.16%

Astrometry.net job: 3071187

RA center: 19h 46' 24"

DEC center: +24° 37' 33"

Pixel scale: 0.494 arcsec/pixel

Orientation: 180.390 degrees

Field radius: 0.439

Locations: Backyard (Mag 20.8 - New Moon), Onalaska, Texas, United States

Data source: Backyard

Description

This rarely imaged object is an emission nebula located 7500 light years away in the constellation of Vulpecula at a declination of +25 degrees. The nebula spans 15 arc-minutes in our apparent view, which corresponds to a width of 30 light years.

This object consists of a faint emission nebula with two bright condensations just above image center. Someone who was probably as creative as I am gave them their imaginative names of S87W (on the left) and S87E (on the right). They look a bit in size and shape like planetary nebulae to me, but they are actually small star clusters which are only really visible in the infrared. Infrared studies have identified that S87W has at least 30 stars and S87E has at least 100 stars.

While this is not a spectacular object, I like the deep colorful star field and the subtle accents that the Ha emission provides. Dim dark dust clouds are visible throughout the background.

Comments

Author

GaryI
Gary Imm
License: None (All rights reserved)
1232
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Sh2-87, 





    
        

            Gary Imm