 |
| Messier/type: | M54 / globular cluster |
| mag/dia/dist: | 7.7 / 12' / 70,000 ly |
| constellation: | Sagittarius |
| date/time/place: | Apr 8, 01 / 05:30 / bangkok |
| trans'y/seeing/l-poll: | good / good / low-medium |
| telescope: | newtonian 4.5" f8.8 |
| eyepieces/power: | 25mm, 10mm / 40x, 100x |
| sky atlas page: | 22 |
Start hopping from the tea pot's handle comprises of four star 27,34,40 & 38.
Center at star 38, stars mag5.5 & mag6 form equal sides triangle.
Star 38, star mag6 & M54 form another right angle triangle. Center at estimated
location of M54, made final adjustment at eyepiece. M54 appeared like a faint star
at 40x, when change eyepiece to 100x, it appeared as very small, very faint smudge of light
From text shows that its distant is 70,000 ly; it should be the farthest globular cluster
I have observed. Even though it is not beautiful, but it good value to see the light
that traveled from its source 70,000 years ago.
Refer to text: high concentration, very bright, large, round, extend 170 ly.
Home
|