Deep Sky Object in Summer
NGC6822 (Barnard's Galaxy in Sagittarius)


Click on image to enlarge

Date & Time: Jul 17 2021, from 25:31 to 26:03 JST(+0900)
Composed 5 shots with 4 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



NGC6822 / Galaxy, type IB(s)m
R.A.19h 44m 56.5s (2000.0)
Dec.-14° 48' 11" (2000.0)
Apparent Size15.6×13.5'
Radial Velocity-26km/s
Magnitude9.3
Distance1.6 million light yrs.
Group of GalaxiesLocal Group
Other IDsIC 4895, MCG -2-50-6
DDO 209, IRAS 19421-1455
PGC 63616
NGC6822 is a dimmed irregular galaxy at northeast edge of Sagittarius, called "The Barnard's Galaxy" from a name of discoverer. The galaxy has a long axis of about 15 arc minutes, one of dwarfs belonging to the Local Group. We can detect the galaxy as an indistinct lump of light under conditioned skies through telescopes. In addition, this image shows you that the galaxy has two dimmed gaseous compositions (MCG2-50-2 & MCG2-50-3) at 8 arc minutes northwest (upper right hand side) from the center. The galaxy is positioned at approx. 1.6 millions light-years away, closer than the Andromeda galaxy M31, a major member of the Local Group.




NGC6745

NGC7013


Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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