| Comet | 17P/Holmes |
|---|---|
| User | Giuseppe Pappa |
| User`s name | Giuseppe Pappa |
| Observation's time (UT) | 2007-11-13 21:20:00 |
| Tool | Naked eye |
| Observation's place | Mascalucia |
| Magnitude | 3 |
| Comparison stars source | NP - North Polar Sequence (publ. by the A.A.V.S.O.) |
| Method | I - Variable stars (without defocusing) |
| Coma diameter(') | 20 |
| Tail's length | Not set |
| Condensation | 5 |
| 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 | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2007 Nov 13.89 UT: m1=3, Dia.=20', DC=5...Naked Eye ...Giuseppe Pappa (Mascalucia, Italy) |
