| Comet | C/2017 T3 (ATLAS) |
|---|---|
| User | Marco Goiato |
| User`s name | Marco Antonio Coelho Goiato |
| Observation's time (UT) | 2018-07-18 09:00:00 |
| Tool | 20 x 100 B |
| Observation's place | Araçatuba |
| Magnitude | 8.7 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 4 |
| Tail's length | Not set |
| Condensation | 4/ |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 10 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 20 |
| Field of view (°) | 2.75 |
| SQM-L in zenith | |
| Light pollution zone | Yellow |
| Lm | |
| Comment | Comet altitude: 13° Sun altitude: -13° ( nautical twilight ) |
| Morris Format | 2018 Jul 18.38 UT: m1=8.7, Dia.=4', DC=4.5 ...10-cm B (20x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil) |
