Deep Sky Object in Winter
NGC1973 (Diffused Nebula in Orion)

Date & Time: Feb 20 2010, from 23:02 to 23:44 JST(+0900)
Composed 5 shots with 10 minutes exposed
Optical: VIXEN 20cm(7.9") VISAC with a conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium Moon & Skyglow filter
Auto-guided with VIXEN ATLUX 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)
CCD Sensitivity...ISO1600

NGC1973 / Diffused Nebula, type 1 E
R.A.05h 35m 25.0s (2000.0)
Dec.-04° 47' 00" (2000.0)
Apparent Size29.0×20.0'
Real Size10 light yrs.
Magnitude -
Distance1630 light yrs.
Other IDsNGC1975, SH2 -279
This emission nebula is lying only 1 degree north of the Great Orion Nebula (M42), very familiar to astro-photographers because they're capturing one of the most photogenic objects in heavens with this NGC1973 in same flames. The nebula has been spread out in span of about 20-by-30 arc minutes, we can recognize very complicated gaseous matters in the nebula. Those hydrogen inter-stellar clouds are same that of M42 and various nebulosities around this field.



Copyright(c) 2010 by Naoyuki Kurita, All rights reserved.
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