NASA/JPL elements
IAU/MPC elements
On 2019 Aug 13 02h57 UT by Nicolas Biver
(Copyright Nicolas Biver)
| Coma Total magnitude (m1) | 11.3 | Aperture radius used for m1 | 1.7 ' | Nuclear magnitude (m2) | 14.5 | Aperture radius used for m2 | 6.0 " | Coma diameter | 3.4 ' | Coma condensation degree (DC) | 4 | r (dist/Sun) | 1.493 AU | d (dist/Earth) | 1.464 AU | Right ascension | 04 12 47.0 h m s | Declination | +58 13 23 ° ' " | 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 Alpha 7s | Sensor | DC | Sensor size | 36*24 mm2 | Sensor pixels number | 4240*2832 | Binning | 2x2 | Mount | Dobson sur table equatoriale JMI | Motorization | Yes | Autoguide | No | Exposure total time | 44 s | Exposure details | 4sec+20*2sec | Sky transparency (naked eye max mag) | 5.5 | Seeing | 3 | Air mass | 1.3 | Location | Boulonville (28/78) | Reference stars catalog | GSC (HST) | Used softwares | IRIS | Resulting picture sampling (scale) | 2.0 "/pix | Image processing | alignement, somme, retrait gradient | Observation submission date | 2019 Aug 14 16h47m36s |
(Record n° 20894)