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


Date & Time: Jan 4 2022, from 24:53 to 26:00 JST(+0900)
Composed 12 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
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...ISO4000, White Balance...Daylight


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
Magnitude12.0
DistanceN/A
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
Magnitude12.1
DistanceN/A
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.



NGC3675
NGC3718 & NGC3729

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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