Deep Sky Object in Winter
Sh2-301 (Diffused Nebula in Canis Major)
|Date & Time: ||Nov 28 2008, from 28:03 to 28:52 JST(+0900)
|Composed 5 shots with 12 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1760mm, F7.1)
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Nikon D50 (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)|
Sh2-301 is a small-diffused nebula bathed in about 6degrees ESE from Sirius.
The nebula has an apparent diameter of about 9 arc minutes and a round-shape, we can see some dark lanes in the nebula.
Sh2-301 is a nebula emitting H-alpha spectrum, we can see its whitish figure with our naked eyes through telescopes.
A distance from the solar system is estimated about 19 thousand light years.
|Sh2-301 / Diffused Nebula, type 1 E|
|R.A.||07h 09m 51.0s (2000.0)|
|Dec.||-18° 29' 45" (2000.0)|
|Real Size||50 light yrs.|
|Distance||19 thousand light yrs.|