Deep Sky Object in Autumn
Maffei I & II (Galaxies in Cassiopeia)


Date & Time: Left: Dec 7 2013, from 21:56 to 22:22 JST(+0900), 6min×5shots
Right: Dec 7 2013, from 22:37 to 23:19 JST(+0900), 6min×8shots
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO3200




Maffei I / Galaxy, type E
R.A.02h 41m 54.0s (2000.0)
Dec.+59° 39' 00" (2000.0)
Apparent Size18.2'
Radial Velocity-138km/s
Magnitude14.4
Distance8 million light yrs.
Group of GalaxiesMaffei Group
Other IDsUGCA34
Maffei II / Galaxy, type SBbc
R.A.02h 36m 36.0s (2000.0)
Dec.+59° 36' 00" (2000.0)
Apparent Size21.4'
Radial Velocity-134km/s
Magnitude16.0
Distance8 million light yrs.
Group of GalaxiesMaffei Group
Other IDsUGCA39
This picture shows you two indistinct galaxies lying at 2.5 degrees northeast of the Double Clusters in Cassiopeia. Although the galaxies has been obstructed by inner galactic matters, their actual sizes are larger than 10 arc minutes, fairly large-sized neighboring galaxies. The Maffei I in left image is an elliptic, and the Maffei II in right has been classified in bared galaxy.
The galaxies are estimated about 8 millions light years away discovered by an Italian astronomer Paolo Maffei in 1968, main members of "The Maffei Group". Now we know about 20 galaxies belonging to Maffei Group, almost all members are faint dwarfs.




UA444 (WLM)

Quasar 3C48


Copyright(c) 2014 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Autumn index Cassiopeia