| Comet | C/1988 Y1 (Yanaka) |
|---|---|
| User | HAS02 |
| User`s name | Werner Hasubick |
| Observation's time (UT) | 1989-01-04 04:33:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 9.0 |
| Comparison stars source | |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 1.3 |
| Tail's length | Not set |
| Condensation | 4 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 8 cm |
| Focal length (mm) | 0 |
| Type of tool | B - Binoculars |
| Magnification | 20 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 1989 Jan 4.19 UT: m1=9.0, Dia.=1.3', DC=4 ...8-cm (20x) ...Werner Hasubick (, ) |
