NASA/JPL elements
IAU/MPC elements
On 2021 Dec 30 22h35 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 9.1 | Aperture radius used for m1 | 3.0 ' | Nuclear magnitude (m2) | 12.6 | Aperture radius used for m2 | 6 " | Coma diameter | 6.0 ' | Coma condensation degree (DC) | 6 | Tail length | 0.13 ° | Tail position angle (PA) | 310 ° | r (dist/Sun) | 3.556 AU | d (dist/Earth) | 2.592 AU | Right ascension | 07 13 46.35 h m s | Declination | +33 07 46 ° ' " | Instrumental configuration | Config1 | Instrument | Dobson 407mm F/D 4.3 | Instrument type | Newton | Instrument aperture (0=naked eye) | 407 mm | Instrument focale length | 1750 mm | Instrument focale/diameter | 4.29 | Filter(s) | None | Camera | SONY alpha7S | Sensor | DC | Sensor size | 36*24 mm2 | Sensor pixels number | 4240*2832 | Sensor temperature | 10 °C | Binning | 2x2 | Mount | dobson sur table equatoriale JMI | Motorization | Yes | Autoguide | No | Exposure total time | 82.7 s | Exposure details | 19x2.5s+11x3.2s | Sky transparency (naked eye max mag) | 5.5 | Seeing | 4 | Moon phase | 140 ° | Moon elongation | 180 ° | Air mass | 1.12 | Location | Boulonville | Reference stars catalog | APASS | Used softwares | IRIS | Resulting picture sampling (scale) | 2 "/pix | Image processing | binning, flat, alignement, somme, retrait gradient - images jpg | Remarks or comments | couche verte mV=9.0 Sur images RAW (47.5s): m1=9.2, m2=12.0 (non saturé/linéaire) | Observation submission date | 2022 Jan 02 19h44m14s |
(Record n° 24729)