Orbital period : 17872.00 years
NASA/JPL elements
IAU/MPC elements
On 2017 Apr 07 03h52 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 7.2 | Nuclear magnitude (m2) | 11.7 | Aperture radius used for m2 | 4 " | Coma diameter | 3 ' | Coma condensation degree (DC) | 7 | Tail length | 0.2 ° | Tail position angle (PA) | 290 ° | r (dist/Sun) | 0.629 AU | d (dist/Earth) | 0.668 AU | Right ascension | 22 43 33 h m s | Declination | +24 31 00 ° ' " | Instrumental configuration | Config1 | Instrument | T407mm f/D 4.3 Dobson | 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 A7s | Sensor | DC | Sensor size | 36*24 mm2 | Sensor pixels number | 4240*2832 | Sensor temperature | 5 °C | Binning | 2x2 | Mount | Dobson | Motorization | No | Autoguide | No | Exposure total time | 21.4 s | Exposure details | 78*1/4+15*1/8sec | Power magnification | 72 X | Magnitude visual estimation method (ICQ code) | S | Sky transparency (naked eye max mag) | 5 | Seeing | 2 | Air mass | 4 | Location | Crespières | Reference stars catalog | Tycho | Used softwares | IRIS | Resulting picture sampling (scale) | 2 "/pix | Image processing | sommes recentrées sur la comète (5 séries étalées sur 14 à 35 secondes) et retrait gradient sous IRIS | Remarks or comments | Nord vers PA 33° sur l'image Magnitude m1 = magnitude visuelle T407x72 m1 = 7.9 sur photométrie de 4' d'ouverture | Observation submission date | 2017 Apr 07 14h50m04s |
(Record n° 17433)