Deep Sky Object in Winter
Sh2-284 (Diffused Nebula in Monoceros)
|Date & Time: ||Dec 8 2012, from 24:54 to 25:29 JST(+0900)
|Composed 5 shots with 8min. exposed|
|Optical: ||TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
|with IDAS LPS-P1 Light-pollution suppression filter|
|Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
|Digital Camera: ||Canon EOD 550D (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
This is one of diffused nebulae floating in Milky Way in Monoceros, positioned in 5.5 degrees southeast of the Rosette Nebula, and almost center of the Great Triangle in winter.
We can capture the nebula in star field photographs around here.
The nebula has a size of about 20 arc minutes, and is surrounded by dimmed reddish gaseous matters.
|Sh2-284 / Diffused Nebula, type 6 E|
|R.A.||06h 45m 41.8s (2000.0)|
|Dec.||+00° 12' 06" (2000.0)|
|Apparent Size||about 20'|
|Real Size||400 light yrs.|
|Distance||16900 light yrs.|