| Comet | C/1957 P1 (Mrkos) |
|---|---|
| User | Ceplecha |
| User`s name | |
| Observation's time (UT) | 1957-08-10 00:00:00 |
| Tool | Naked eye |
| Observation's place | Prague |
| Magnitude | 1: |
| Comparison stars source | YG - Yale Bright Star Catalogue |
| Method | |
| Coma diameter(') | Not set |
| Tail's length | Not set |
| Condensation | |
| 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 | 1957 Aug 10. UT: m1=1:...Naked Eye ... (Prague, ) |
