Deep Sky Object in Summer
Sh2-73 (Molecular Cloud in Hercules)

Click on image to enlarge

Date & Time: Mar 5 2022, from 27:14 to 28:27 JST(+0900)
Composed 25 shots with 3 minutes exposed
Optical: BORG 60ED with conversion lens (f=245mm, F4.1)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with VIXEN ATLUX Equatorial
Digital Camera: Canon EOS 6D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Sensitivity...ISO2500


Sh2-73 / Molecular Cloud, type5 E
R.A.16h 11m 07.6s (2000.0)
Dec.+21°52' 26" (2000.0)
Apparent Size60×20'
Real SizeN/A
Magnitude -
Distance420 light yrs.
Other IDsLBN 105
Sh2-73 is a vast and extraordinary dimmed molecular cloud distributed at about 4.5 degrees west of β Her, on a boundary on Serpens Caput. The central condense region has a span of 60×20 arc minutes, but nearly 4 degrees including the surrounding spread. The central shape has often been likened to a hairpin. The cloud has distributed at approx. 400 light years away.



Sh2-72
Sh2-74

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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