 |
| Messier/type: | M78 / diffuse nebula |
| mag/dia/dist: | 8.0 / 8'x6' / 1,630 ly |
| constellation: | Orion |
| date/time/place: | Feb 24, 01 /22:30 / bangkok |
| trans'y/seeing/l-poll: | good / good / low-medium |
| telescope: | newtonian 4.5" f8.8 |
| eyepieces/power: | 10mm / 100x |
| sky atlas page: | 11 |
Start hopping at orion belt, center at Alnitak, then hop to star 51.
At star 51, look for star mag6.5 & mag7 in south-east direction from star 51.
M78 locates at one corner of imaginary right triangle which form by star mag6.g,
star mag7 and M78 itself. M78 couldn't see via finder scope, try to center at
its estimated location by comparing with star atlas. At eyepiece 40x, I couldn't
confirm its location. When changed to 100x, I could confirm but image didn't stable
depend on seeing condition. M78 appeared as very faint and small nebulosity which have
bright star like double nucleus.
Refer to text: Bright, large, wispy nebula, contains two stars mag10, extend 3 ly.
Home
|