Deep Sky Object in Summer
Sh2-72 (Diffused Nebula in Aquila)

Date & Time: Jul 25 2015, from 25:08 to 25:44 JST(+0900)
Composed 8 shots with 5 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P2-FF Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial & Meade Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Koumi town, Nagano pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO1600

Sh2-72 / Diffused Nebula, type5 E
R.A.19h 03m 50.3s (2000.0)
Dec.+02°18' 50" (2000.0)
Apparent Size25.0'
Real Size5 light yrs.
Magnitude -
Distance1260 light yrs.
Other IDsLBN 104, RCW 179
Sh2-72 is a minor emission nebula positioned in the Milky Way of western Aquila. Although the nebula has a visual diameter of 25 arc minutes, looks extraordinary dimmed, you can detect the nebula only in long-exposed images. The constellation of Aquila has almost no impressive nebulae nevertheless that the constellation has bathed in the summer's Milky Way. The Sh2-72 can be grouped in one of "photogenic" nebulae in the constellation.
A small globular cluster of NGC6749 can be seen in 30 arc minutes southeast of Sh2-72. Moreover a tiny planetary nebula of Sh2-71 is lying at 20 arc minutes west.



Copyright(c) 2015 by Naoyuki Kurita, All rights reserved.
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