| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Sergey Shurpakov |
| User`s name | Sergey Shurpakov |
| Observation's time (UT) | 1998-10-16 18:28:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 9.8 |
| Comparison stars source | |
| Method | M - Morris`s method |
| Coma diameter(') | Not set |
| Tail's length | 5' |
| Condensation | s5 |
| Positional angle of tail | 70 |
| Bortl's scale | Not set |
| Aperture | 25 cm |
| Focal length (mm) | 1000 |
| Type of tool | L - Newtonian reflector |
| Magnification | 64 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 1998 Oct 16.77 UT: m1=9.8, DC=5, Tail: 5 arcmin, in PA 70 deg ...25-cm (64x) ...Sergey Shurpakov (, ) |
