Deep Sky Object in Winter
NGC2359(Duck Nebula in Canis Major)
|Date & Time: ||Dec 28 2013, from 24:03 to 24:47 JST(+0900)
|Composed 8shots with 6 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
|with BaaderPlanetarium Moon&Skyglow filter|
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Canon EOS 600D (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
NGC2359 is a small diffused nebula lying about 9 degrees northeast of Sirius.
The nebula has a small size of about 10 arc minutes in span, a dimmed shape can be detected by naked eyes through telescopes.
Some observers call the nebula "Duck Nebula" from its figure.
The nebula consists of two parts of north and south ones, a vast and indistinct northern part forms a head of duck and a deep southern region forms a bill.
|NGC2359 / Diffused Nebula, type 2 E|
|R.A.||07h 18m 35.9s (2000.0)|
|Dec.||-13° 12' 00" (2000.0)|
|Real Size||100 light yrs.|
|Distance||16300 light yrs.|
|Other IDs||LBN1041, Gum4|
NGC2359 contains a special star of "Wolf-Rayet star".
Only 300 are discovered in the all celestial sphere until now.
It's considered that massive stellar atmosphere is spread out in high velocity, and many emission lines can be observed in its spectrograms.