NASA/JPL elements
IAU/MPC elements
On 2021 Sep 17 02h37 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 11.3 | Aperture radius used for m1 | 1.1 ' | Nuclear magnitude (m2) | 13.4 | Aperture radius used for m2 | 6 " | Coma diameter | 1.8 ' | Coma condensation degree (DC) | 6 | Tail length | 0.06 ° | Tail position angle (PA) | 300 ° | r (dist/Sun) | 3.704 AU | d (dist/Earth) | 3.908 AU | Right ascension | 07 16 20 h m s | Declination | +44 14 40 ° ' " | 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 | Camera | SONY alpha7S | Sensor | DC | Sensor size | 36*24 mm2 | Sensor pixels number | 4240*2832 | Sensor temperature | 12 °C | Binning | 2x2 | Mount | dobson sur table equatoriale JMI | Motorization | Yes | Autoguide | No | Exposure total time | 80 s | Exposure details | 40*2.0s | Sky transparency (naked eye max mag) | 6 | Seeing | 3 | Moon phase | 49 ° | Moon elongation | 154 ° | Air mass | 1.5 | Location | Boulonville | Reference stars catalog | APASS | Used softwares | IRIS | Resulting picture sampling (scale) | 2 "/pix | Image processing | binning, flat, alignement stellaire, somme, retrait gradient | Remarks or comments | couche verte: m1=13.4, Dia.=2' | Observation submission date | 2021 Sep 21 23h00m45s |
(Record n° 23992)