Messier/type:M47 / open cluster
mag/dia/dist:4.4 / 25' / 1,550 ly
constellation:Puppis
date/time/place:Jan 3, 01 / 00:10 / bangkok
trans'y/seeing/l-poll:low / fair / high
telescope:newtonian 4.5" f8.8
eyepieces/power:25mm / 40x
sky atlas page:12
Start at Sirius in Canis major, hop to stars 20 & 23, there are double star and a single star mag6 which points to M47. M47 is easily seen in finder scope. M47 appeared as bright, large, loose cluster. 19 stars could be observed. On this night, I failed to observe M46 due to not so good sky condition.
Refer to text: 30 stars detached, max mag5.7, extend 16 ly, age 78 million years. Home
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