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)|
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.
|Sh2-72 / Diffused Nebula, type5 E|
|R.A.||19h 03m 50.3s (2000.0)|
|Dec.||+02°18' 50" (2000.0)|
|Real Size||5 light yrs.|
|Distance||1260 light yrs.|
|Other IDs||LBN 104, RCW 179|
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.