Comet | 21P/Giacobini-Zinner |
---|---|
User | Alexsandr Morozov |
User`s name | Alexsandr Morozov |
Observation's time (UT) | 2018-08-08 19:36 |
Tool | телескоп SW 10 dob |
Observation's place | Sukhinichi |
Magnitude | 8.4 |
Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
Method | M - Morris`s method |
Coma diameter(') | 5 |
Tail's length | 7' |
Condensation | 6 |
Positional angle of tail | 255 |
Bortl's scale | Not set |
Aperture | 25.4 cm |
Focal length (mm) | 1200 |
Type of tool | L - Newtonian reflector |
Magnification | 48 |
Field of view (°) | 0.83 |
SQM-L in zenith | |
Light pollution zone | Green |
Lm | 6.48 |
Comment | |
Morris Format | 2018 Aug 8.82 UT: m1=8.4, Dia.=5', DC=6, Tail: 7 arcmin, in PA 255 deg ...25.4-cm L (48x) ...Alexsandr Morozov (Sukhinichi, Russia) |