| Comet | 23P/Brorsen-Metcalf |
|---|---|
| User | chergen |
| User`s name | Carl Hergenrother |
| Observation's time (UT) | 1989-09-03 09:07:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 5.5 |
| Comparison stars source | |
| Method | B - Bobrovnikoff`s method |
| Coma diameter(') | 3 |
| Tail's length | 0.2° |
| Condensation | |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 15.2 cm |
| Focal length (mm) | 760 |
| Type of tool | L - Newtonian reflector |
| Magnification | 30 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 1989 Sep 3.38 UT: m1=5.5, Dia.=3', Tail: 0.2 deg ...15.2-cm (30x) ...Carl Hergenrother (, ) |
