| Object/type: | Neptune |
| mag/dia/dist: | 7.88 / 2" / 29.67 AU |
| constellation: | Capriconus |
| date/time/place: | Oct 4, 2001 / 22:50 / bangkok |
| trans'y/seeing/l-poll: | Medium / Medium / High |
| telescope: | newtonian 4.5" f8.8 |
| eyepieces/power: | 25mm / 40x |
| sky atlas page: | 23 & 16 |
Check position of neptune by starry night, should be marked into sky atlas to protect of lost in space (I lost one time on this session). Start hopping from the nearest naked eye "Fomahaut" in piscis austrinus hop to star 17-->15,14-->9--> epsilon, delta & gamma Microscopii-->enter capriconus star24-->34,36-->38,39 & 43--> star 49 & 40. Change to chart no. 16, hop to stars 16-->32-->23-->29-->enter aquarius star 13-->2-->return to Capriconus star 8,5 & 9-->11,10,12 & 15. Star 11, 12 & neptune forms as a equal sides triangle (distance 11 to 12 equal to 12 to neptune) neptune can't see in finder scope. At eyepiece neptune appeared as bright star when change to 100x, it was bigger but can't see like disk. Can't see background stars, the nearest star is omicron caproconi, the double star mag5.94 (on upper left), neptune is on lower right.
Refer to text book: Unique greenish color Different from stars.
Home