Deep Sky Object in Winter
NGC1784 (Galaxy in Lepus)

Date & Time: Nov 5 2010, from 25:58 to 26:22 JST(+0900)
Composed 6 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1790mm, F7.1)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D700
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2784×1848)
Device Size...DX Format (24×16mm)
CCD Sensitivity...ISO3200

NGC1784 / Galaxy, type SB(r)c II
R.A.05h 05m 27.1s (2000.0)
Dec.-11°52' 17" (2000.0)
Apparent Size4.6×2.7'
Radial Velocity+2255km/s
Group of GalaxiesN/A
Other IDsMCG -2-13-42, IRAS 5030-1156
PGC 16716
NGC1784 is a small barred galaxy positioned about 1.5 degrees west from iota Leporis in western region of the constellation. The galaxy has a long axis of 4.6 arc minutes and a brightness of 12.4th magnitude. You can detect indistinct spiral structures in dimmed outer region, maybe only elliptical lump of light can be detected through telescopes.



Copyright(c) 2011 by Naoyuki Kurita, All rights reserved.
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