| Comet | 252P/LINEAR |
|---|---|
| User | Aquarellia |
| User`s name | Deconinck Michel |
| Observation's time (UT) | 2016-04-07 02:30 |
| Tool | Vixen BT126-SS-A |
| Observation's place | Notre Dame la Brune |
| Magnitude | 7.00 |
| Comparison stars source | AE - Planetary magnitudes from the American Ephemeris and Nautical Almanac |
| Method | I - Variable stars (without defocusing) |
| Coma diameter(') | 20 |
| Tail's length | 0 |
| Condensation | 1 |
| Positional angle of tail | Not set |
| Bortl's scale | 3 |
| Aperture | 12.6 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 40 |
| Field of view (°) | 1.5 |
| SQM-L in zenith | 20.55 |
| Light pollution zone | Gray |
| Lm | 6.0 |
| Comment | In the same field than M14 I use M14 m=7.6 and M13 m=5.8 as magnitude comparison. Greenish color was perceptible. I made two sketches with my Vixen 126mm: 25x and 40x |
| Morris Format | 2016 Apr 7.1 UT: m1=7.00, Dia.=20', DC=1, Tail: 0 deg ...12.6-cm B (40x) ...Deconinck Michel (Notre Dame la Brune, France) |
