Exposures: 75 min of Ha; 45 min of OIII, and 45 min of SII for a total of 2hrs 45 min
FOV = 52 x 35 arc minutes
This image includes multiple Sharpless objects including SH2-254 (larger) and two smaller objects: Sh2-257 and SH2-255. Much smaller are Sh2-256 and Sh2-258. Many very hot young O-type stars ignite the surrounding hydrogen to produce this complex nebula.
Located 8,000 light years away
Reduced to 60% of original
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