Deep Sky Object in Spring
NGC4051 (Galaxy in Ursa Major)

Date & Time: Feb 4 2017, from 25:37 to 26:11 JST(+0900)
Composed 12 shots with 3 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO6400, White Balance...Daylight

NGC4051 / Galaxy, type SAB(rs)bc II
R.A.12h 03m 9.1s (2000.0)
Dec.+44° 32' 06" (2000.0)
Apparent Size5.3×3.9'
Radial Velocity934km/s
Distance35 million light yrs.
Group of GalaxiesUrsa Major S Group
Other IDsUGC7030, MCG8-22-59
CGCG243-38, PGC38068
NGC4051 is a small-scaled galaxy positioned around the root of Big Bear's hind leg, you can find out about 4 degrees southwest of a major galaxy M106. NGC4051 has classified in the "Seyfert Galaxy" have very active central bulge, and the galaxy has selected in one of first-light objects of Subaru telescope in Hawaii. The galaxy has a feature of bared and spiral galaxies, and has a long axis of about 5 arc minutes or so. The distance from us has been estimated about 35 millions light years.

NGC4036, NGC4041


Copyright(c) 2017 by Naoyuki Kurita, All rights reserved.
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