 |
| Messier/type: | M7 / open cluster |
| mag/dia/dist: | 3.3 / 80' / 780 ly |
| constellation: | scorpius |
| date/time/place: | Feb 25, 01 / 05:30 / bangkok |
| trans'y/seeing/l-poll: | fair / fair / medium |
| telescope: | newtonian 4.5" f8.8 |
| eyepieces/power: | 25mm / 40x |
| sky atlas page: | 22 |
start at scorpian's tail stars 35 & 34, Star 35 is brighter than star 34.
Star 34-->star 35-->point to-->M7 which easily to see via finder scope.
At eyepiece, M7 appeared as very large cluster, bright stars in central area form
like Christmas tree in east-west direction, the top is in east.
Refer to text: 80 stars detached, very large, very bright, max mag5.6,
extend 20 ly, age 220 million years.
Home
|