Deep Sky Object in Spring
Arp 299 (Galaxies in Ursa Major)

Date & Time: Jan 23 2010, from 25:47 to 26:48 JST(+0900)
Composed 6 shots with 12 minutes exposed
Optical: Meade 25cm(10") Schmidt Cassegrain with a conversion lens (f=1760mm, F7.1)
Auto-guided with Meade LX200 Equatorial & 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

NGC3690(Arp299) / Galaxy, type IBm pec
R.A.11h 28m 33.2s (2000.0)
Dec.+58° 33' 56" (2000.0)
Apparent Size1.5×1.0'
Radial Velocity+3033km/s
Group of Galaxies -
Other IDsUGC 6472, MCG +10-17-3
IRAS 11257+5850, PGC 35321
IC694 / Galaxy, type SBm? pec
R.A.11h 28m 30.6s (2000.0)
Dec.+58° 33' 29" (2000.0)
Apparent Size1.1×0.9'
Radial Velocity+3132km/s
Group of Galaxies -
Other IDsUGC 6471, MCG +10-17-2
PGC 35326
This image has captured a tiny colliding galaxy pair bathed in the Big Dipper. The pair has a catalogue number of Arp299 of peculiar galaxies in heavens. Two galaxies have sized of 1 or 2 arc minutes and brightness of about 12th magnitude. An eastern galaxy is NGC3690 and another in west has a number of IC694. It's considered that the pair has collided deeply, two nuclei look like coming in contact. And although this image can hardly show you, there is an extraordinary dimmed inter-stellar gaseous matter has spread out in north direction with a length of over 10 arc minutes.


NGC3718 & NGC3729

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