| Comet | C/2017 T2 (PANSTARRS) |
| User | jeff42 |
| User`s name | j-philippe remillieux |
| Observation's time (UT) | 2020-02-23 02:00:00 |
| Tool | Dobonian Telescope |
| Observation's place | Les confins |
| Magnitude | 9.4 |
| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
| Method | B - Bobrovnikoff`s method |
| Coma diameter(') | 3 |
| Tail's length | Not set |
| Condensation | |
| Positional angle of tail | Not set |
| Bortl's scale | 4 |
| Aperture | 250 mm |
| Focal length (mm) | 1200 |
| Type of tool | L - Newtonian reflector |
| Magnification | 68.6 |
| Field of view (°) | 1.09 |
| SQM-L in zenith | |
| Light pollution zone | Yellow |
| Lm | |
| Comment | Core clearly visible with 250mm aperture (tail, hardly). bad weather conditions (bad transparency,2/5) |
| Morris Format | 2020 Feb 23.08 UT: m1=9.4, Dia.=3' ...250-cm L (68.6x) ...j-philippe remillieux (Les confins, France) |