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| Messier/type: | M68 / globular cluster |
| mag/dia/dist: | 8.2 / 10' / 36,000 ly |
| date/time: | Apr 22, 01 / 23:00 |
| place: | bangkok / Thailand |
| trans'y/seeing: | fair / fair |
| light-polluted: | moderate |
| telescope: | 4.5" f8.8 |
| eyepieces/power: | 25mm / 40x |
Sky atlas page 21, Start hopping from Corvus constellation, locate stars 8,7 & 4
into FOV of finder scope, hop to star 9 and further hop to three stars mag5.5
which form as a right triangle. M68 locates close to one corner of the right
triangle that approximately point to star 9.
At eyepiece, 5-6 faint stars appeared around M68. It is very faint, small, not
constant image due to seeing condition.
Also, it was interfered by sky glow due to its low altitude.
M68 is very hard deep sky object for Bangkok. I got it after several observing night.
I used programs Red Shift III & Planetarium gold to confirm position of M68.
The program images are exactly match to my sketch.
Refer to text: Low concentration of stars, large, rich, extend 100 ly
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