Around NGC3619

Deep Sky Object in Spring

Around NGC3619 (Galaxies in Ursa Major)

Date & Time:	Jan 3 2020, from 25:30 to 26:25 JST(+0900)
	Composed 10 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

This image shows you medium-sized galaxies in the square of the Big Dipper. NGC3613 in upper right hand side is 3.6 arc minutes-sized elliptical galaxy with a visual brightness of 11.8th magnitude. One at a bit lower in center is the lenticular NGC3619 which has incomplete structure. The galaxy has a dimmed outer ring; long axis including it reaches 5.3 arc minutes. And last one at 10 arc minutes east of NGC3619 is the 2 arc minute-long edge-on galaxy NGC3625.
Among the three, only NGC3619 is closer than other two galaxies and belonging to a different galaxy group.

NGC3613 / Galaxy, type E6
R.A.	11h 18m 35.6s (2000.0)
Dec.	+58°00' 01" (2000.0)
Apparent Size	3.9×1.8'
Radial Velocity	+2054km/s
Magnitude	11.8
Distance	105 million light yrs.
Group of Galaxies	NGC3613 Group
Other IDs	UGC 6323, CGCG 291-49 MCG +10-16-109, PGC 34583

NGC3619 / Galaxy, type (R)SA(s)0+:
R.A.	11h 19m 21.5s (2000.0)
Dec.	+57°45' 28" (2000.0)
Apparent Size	2.7×2.3'
Radial Velocity	+1649km/s
Magnitude	12.5
Distance	91 million light yrs.
Group of Galaxies	NGC3642 Group
Other IDs	UGC 6330, CGCG 291-54 MCG +10-16-115, PGC 34641 IRAS 11164+5802

NGC3625 / Galaxy, type SAB(s)b:
R.A.	11h 20m 31.4s (2000.0)
Dec.	+57°46' 53" (2000.0)
Apparent Size	2.0×0.6'
Radial Velocity	+1966km/s
Magnitude	13.9
Distance	118 million light yrs.
Group of Galaxies	NGC3613 Group
Other IDs	UGC 6348, CGCG 291-57 MCG +10-16-120, PGC 34718

NGC3486

NGC3631

			Copyright(c) 2020 by Naoyuki Kurita, All rights reserved.
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