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| Messier/type: | M107 / globular cluster |
| mag/dia/dist: | 7.8 / 13' / 19,200 ly |
| constellation: | Orphiuchus |
| date/time/place: | Apr21,01 / 04:30 / bangkok |
| trans'y/seeing/l-poll: | good / fair / fair |
| telescope: | newtonian 4.5", f 8.8 |
| eyepieces/power: | 25mm / 40x |
| sky atlas page: | 15 & 22 |
the star Hopping detail didn't record, the starting point should be same as for M10.
from Sabik hop to 20 & 13 (sky atlas p.15). M107 locates at base corner of imaginary
triangle comprise of 20, 13 & M107. moved expected location of M107 to the center of
finder scope, goto eyepiece and did final tune. as M107 is very faint (mag7.8), it have to
wait for the moment of good seeing, also used avert vision, for such moment it can be separated
from sky glow background. It should be more easy if use LPR filter.
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