NASA/JPL elements
IAU/MPC elements
On 2021 Dec 22 16h59 UT by Francois Kugel
(Copyright Francois Kugel)
| Coma Total magnitude (m1) | 9.6 | Aperture radius used for m1 | 0.4 ' | Nuclear magnitude (m2) | 11.6 | m2 standard deviation | 0.1 | Aperture radius used for m2 | 5.8 " | r (dist/Sun) | 0.671 AU | d (dist/Earth) | 0.456 AU | Right ascension | 20 46 44.52 h m s | Declination | -31 59 12.1 ° ' " | MPC report | COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS J.-G.Bosch, F. Kugel
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.12.23 10:17:57
AC2 fkugel@free.fr
COM IRpro 742nm filter
COM Photometry aperture radius used for m2 = 5.8 arcsec (7 pixels, 0.83 arcsec/pix)
COM Photometry aperture radius used for m1 = 0.4 arcmin (30 pixels, 0.83 arcsec/pix)
NET USNO-B1.0
CK21A010 C2021 12 22.70825 20 46 44.52 -31 59 12.1 11.7 I A77
CK21A010 C2021 12 22.70918 20 46 45.26 -31 59 10.5 9.6 T A77
CK21A010 C2021 12 22.71057 20 46 46.32 -31 59 09.1 11.5 I A77
| Instrumental configuration | Config2 | Instrument type | Newton | Instrument aperture (0=naked eye) | 400 mm | Instrument focale length | 1120 mm | Instrument focale/diameter | 2.8 | Filter(s) | IR pro | Camera | Atik460ex | Sensor | CCD | Sensor temperature | -23 °C | Binning | 1x1 | Mount | Meade-MCMT-TDM | Exposure details | 3x10s | Air mass | 5.866986 | Observatory MPC code | A77 | Reference stars catalog | USNO-B1.0 | Used softwares | ASTROMETRICA | Resulting picture sampling (scale) | 0.83 "/pix | Remarks or comments | Altitude : 9.4° Weak solution | Observation submission date | 2021 Dec 23 10h30m04s | Observation modification date | 2021 Dec 24 18h55m30s |
(Record n° 24664)