| Comet | 217P/LINEAR |
|---|---|
| User | chergen |
| User`s name | Carl Hergenrother |
| Observation's time (UT) | 2009-10-16 11:02:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 9.9 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | M - Morris`s method |
| Coma diameter(') | 3.5 |
| Tail's length | 4.8° |
| Condensation | 6 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 30.5 cm |
| Focal length (mm) | 1525 |
| Type of tool | L - Newtonian reflector |
| Magnification | 60 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2009 Oct 16.46 UT: m1=9.9, Dia.=3.5', DC=6, Tail: 4.8 deg ...30.5-cm (60x) ...Carl Hergenrother (, ) |
