Observation's detail view
| Comet | 2P/Encke |
|---|---|
| User | AHale |
| User`s name | |
| Observation's time (UT) | 2003-12-27 12:57:00 |
| Tool | 41-cm reflector |
| Observation's place | Cloudcroft |
| Comparison stars source | NH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982) |
| Method | |
| Magnitude | :7.5 |
| Coma diameter(') | 1 |
| Tail's length | Not set |
| Condensation | 8 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 40.64 |
| Focal length (mm) | 1828.8 |
| Type of tool | L - Newtonian reflector |
| Magnification | 70.3 |
| Field of view (°) | 0 |
| SQM-L in zenith | |
| Light pollution zone | |
| Lm | Not set |
| Comment | low altitude, fairly bright twilight, probably just the central condensation was seen. My records do not indicate any observations of a tail in 2003, although the comet was in conjunction with the sun, and thus invisible, during the time when I have seen a tail on other returns. I have sent you information on tail observations from 2013; on most returns, when I have seen a tail, it has been short, relatively straight, fairly now, and visible 2-3 weeks before perihelion passage. |
| Morris Format | 2003 Dec 27.54 UT: m1=7.5:, Dia.=<1', DC=8 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.) |