| Comet | 17P/Holmes |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2007-10-31 21:50:00 |
| Tool | BPC 7x50 |
| Observation's place | Kondopoga |
| Magnitude | 2.7 |
| Comparison stars source | YG - Yale Bright Star Catalogue |
| Method | M - Morris`s method |
| Coma diameter(') | 12 |
| Tail's length | Not set |
| Condensation | 6 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 5 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 7 |
| Field of view (°) | 6 |
| SQM-L in zenith | Not set |
| Light pollution zone | Orange |
| Lm | Not set |
| Comment | Naked eye DC = 8/ Low clouds suddenly there has been a gap and I hurried to the balcony - watch the comet. Perseus was close to the zenith - at about 80 degrees, which caused some inconvenience to the observations, given the balcony. Tool - BPC 7x50. I will mention some features. Core, compared with last observation stands out less clearly, and the whole comet in general, it seems somewhat dimmer. Border coma not entirely clear, but quite certain |
| Morris Format | 2007 Oct 31.91 UT: m1=2.7, Dia.=12', DC=6 ...5-cm B (7x) ...Artyom Novichonok (Kondopoga, Russia) |
