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Sh2 209 H-alpha RGB, 


Sh2 209 H-alpha RGB

Sh2 209 H-alpha RGB

Technical card

Resolution: 2439x1883

Dates:Nov. 28, 2019

Astrodon Blue Tru-Balance E-Series Gen 2: 15x240" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 15x240" ISO-1 bin 1x1
Astrodon H-alpha 5nm: 12x1794" bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 15x240" bin 1x1

Integration: 9.0 hours

Avg. Moon age: 1.95 days

Avg. Moon phase: 4.24% job: 3082846

RA center: 4h 11' 13"

DEC center: +51° 10' 1"

Pixel scale: 1.221 arcsec/pixel

Orientation: 359.982 degrees

Field radius: 0.523

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

Data source: Own remote observatory

Remote source: Non-commercial independent facility


This large and dusty star formation region in the outer galaxy contains the infrared star cluster [BDS2003] 65.

Avedisova places Sh 2-209 in star formation region 151.60-0.24 with 14 components including a water maser, the young stellar object IRAS 04064+5052 (CPM 12) and numerous infrared and radio sources.

Chini and Wink find three ionising stars: [CW84] S209-1 (B1III), [CW84] S209-2 (O9 III), and [CW84] S209-3 (B1).


Basically the same processing described for 203:



License: None (All rights reserved)

Sky plot

Sky plot


Sh2 209 H-alpha RGB,