Deep Sky Object in Spring
NGC5078, NGC5101 (Galaxies in Hydra)

Date & Time: Apr 24 2004, from 22:09 to 22:27 JST(+0900)
Composed 3 shots with 7 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: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto

NGC5078 / Galaxy, type SA(s)a: sp
R.A.13h 19m 50.3s (2000.0)
Dec.-27° 24' 32" (2000.0)
Apparent Size3.9×1.9'
Radial Velocity+1883km/s
Distance90 million light yrs.
Group of GalaxiesNGC5101 Group
Other IDsESO508-48, MCG-4-32-1
IRAS13170-2708, PGC46490
NGC5101 / Galaxy, type (R')SB(rs)a
R.A.13h 21m 48.0s (2000.0)
Dec.-27° 26' 00" (2000.0)
Apparent Size6.0×5.0'
Radial Velocity+1883km/s
Distance90 million light yrs.
Group of GalaxiesNGC5101 Group
Other IDsESO508-58, MCG-4-32-8
UGCA351, PGC46661
This picture shows you two galaxies paralleling around the Hydra's tail with an interval of 25 arc minutes. An eastern galaxy (left in image) is NGC5101, and a western one (right in image) has a number of NGC5078. NGC5101 is a bared galaxy with a long axis of 5.4 arc minutes, NGC5078 is an edge-on one with a length of less than 4 arc minutes.
NGC5101 has a bared structure in NW-SE direction and extraordinary dimmed arms wound from tips of the bar. And NGC5078 has a clear dark lane crossing the center of galaxy.

NGC5044 Group


Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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