| Comet | 17P/Holmes |
|---|---|
| User | Norm |
| User`s name | Neil Norman |
| Observation's time (UT) | 2008-01-10 00:28:00 |
| Tool | Naked eye |
| Observation's place | Ipswich |
| Magnitude | 4.2 |
| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
| Method | |
| Coma diameter(') | 60 |
| Tail's length | Not set |
| Condensation | 3 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | cm |
| Focal length (mm) | Not set |
| Type of tool | E - Naked eye |
| Magnification | Not set |
| Field of view (°) | Not set |
| SQM-L in zenith | |
| Light pollution zone | |
| Lm | 6.5 |
| Comment | |
| Morris Format | 2008 Jan 10.02 UT: m1=4.2, Dia.=60', DC=3...Naked Eye ...Neil Norman (Ipswich, England) |
