Deep Sky Object in Winter
Rosette Nebula (NGC2237 in Monoceros)
|Date & Time: ||Nov 14 2009, from 27:24 to 28:37 JST(+0900)
|Mosaic of 2 flames of 10min.×4shots|
|Optical: ||TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
|with IDAS LPS-P1 Light-pollution suppression filter|
|Auto-guided with TAKAHASHI JP Equatorial & Meade 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)|
The Rosette Nebula is a vast diffused nebula about 10 degrees east of Betelgeuse, alpha Ori.
It's extremely photographed and has a size of two times of that of the full moon.
|NGC2237-9 / Diffused Nebula, type 1 E|
|R.A||06h 30m 18.0s (2000.0)|
|Dec.||+05° 03' 00" (2000.0)|
|Real Size||67×64 light yrs.|
|Distance||3600 light yrs.|
|Other IDs||Sh2-275, LBN949|
Actually, this nebula carries four separate NGC numbers 2237, 2238,2239 and 2246 although it usually goes under the number of NGC2237.
It takes a large telescope to distinguish the whole of nebula because that's very faint,
so you'll detect the nebula as a ghostly bit of fluff around the star cluster of NGC2244.
By the way, I can remind the nebula of not only a flower of rose but also a skull, and the nebula has both impressions of beauty and eeriness.
How do you think?
It is surmised that the nebula include lots of lumps of gases coalescing, and producing either a new star or perhaps even a whole new solar system.
The nebula is about 3600 light years away.