NASA/JPL elements
IAU/MPC elements
On 2018 Jul 24 02h31 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 10.8 | Aperture radius used for m1 | 1.0 ' | Nuclear magnitude (m2) | 12.9 | Aperture radius used for m2 | 6.0 " | Coma diameter | 2 ' | Coma condensation degree (DC) | 3 | r (dist/Sun) | 0.736 AU | d (dist/Earth) | 0.977 AU | Right ascension | 05 42 06.0 h m s | Declination | +51 44 02 ° ' " | Instrumental configuration | Config3 | Instrument | Dobson 407 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 alpha 7s | Sensor | DC | Sensor size | 36x24 mm2 | Sensor pixels number | 4240x2832 | Sensor temperature | 17 °C | Binning | 2x2 | Mount | dobson | Motorization | No | Autoguide | No | Exposure total time | 7.5 s | Exposure details | 30x1/4s | Sky transparency (naked eye max mag) | 3.5 | Seeing | 2 | Moon phase | 41 ° | Moon elongation | 148 ° | Air mass | 2 | Location | Versailles | Reference stars catalog | GSC (HST) | Used softwares | IRIS | Resulting picture sampling (scale) | 2.07 "/pix | Image processing | alignement, somme retrait gradient et alignement sur la comète 2 séries de poses à 2h31.5 et 2h50.4 UT | Remarks or comments | Noyau secondaire à 13" PA 300° ? Images réorientées, nord en haut | Observation submission date | 2018 Jul 24 15h42m05s |
(Record n° 19394)