NASA/JPL elements
IAU/MPC elements
On 2022 Feb 09 02h06 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 9.5 | Aperture radius used for m1 | 2.2 ' | Nuclear magnitude (m2) | 12.6 | Aperture radius used for m2 | 6 " | Coma diameter | 4 ' | Coma condensation degree (DC) | 6 | Afrho | 18055 cm | Afrho error | 1043 cm | Afrho URL for more info | https://lesia.obspm.fr/perso/nicolas-biver/COMETES/afrho2019l3-090222r.pdf | r (dist/Sun) | 3.565 AU | d (dist/Earth) | 2.761 AU | 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 | 0 °C | Binning | 2x2 | Mount | dobson sur table equatoriale JMI | Motorization | Yes | Autoguide | No | Exposure total time | 100.5 s | Exposure details | 22x2s+15x1.6s+13x2.5s | Sky transparency (naked eye max mag) | 6 | Seeing | 2 | Moon phase | 90 ° | Moon elongation | 180 ° | Air mass | 2 | Location | Boulonville | Reference stars catalog | APASS | Used softwares | IRIS | Resulting picture sampling (scale) | 2 "/pix | Image processing | binnig, flat, alignement, somme, retrait gradient | Remarks or comments | afrho sur couche rouge (16191cm sur N&B R+V+B) | Observation submission date | 2022 Feb 13 18h04m44s | Observation modification date | 2022 Feb 15 18h02m37s |
(Record n° 25073)