(FrameSize=120' * 120')

IC2157 = Cr80 = Tr4 (Open Cluster) :the small cluster located to right of center,
M35 = NGC2168 = Cr82 = Mel.41 (Open Cluster) :the big cluster located to left,
NGC2158 = Cr81 = Mel.40 (Open Cluster) :the small cluster located to left of center

Dec.11 1999, 23h58m JST (8min. Exposure)
Location: the Hikoma, Tanuma town, Tochigi pref., Japan

Epsilon210c (21cm-reflector, f=628mm, F:3.0), Fuji-film SGA800

Object Data
IC2157 = Cr80 = Tr4
Type of objectOpen Cluster Typed
R.A.06h 04.9m (2000.0) Dec.+24° 02' (2000.0)
Mag.(v)8.5 Mag.(p)-
Diameter4' Distance7100 light-year
noteContaining about 20 stars

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