C/2018 W2 (Africano) (Record n° 20808)
Perihelion distance : 1.46 AU
Inclination to ecliptic : 117 °
Eccentricity : 1
NASA/JPL elements
IAU/MPC elements
On 2019 Jun 30 01h54 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 13.9 Aperture radius for m1 0.4 ' Magnitude (MPC m2) 16.6 Magnitude standard deviation 0.0 Aperture radius for m2 5.8 " Coma diameter 2 ' r (dist/Sun) 1.738 AU d (dist/Earth) 2.325 AU Right ascension 66.69292 ° Declination +61.0785 ° MPC report COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS C. Rinner, F. Kugel
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 2019.06.30 05:18:32
AC2 fkugel@free.fr
COM Photometry aperture radius used for m2 = 6.64 arcsec (8 pixels, 0.83 arcsec/pix)
COM Photometry aperture radius used for m1 = 0.4 arcmin (30 pixels, 0.83 arcsec/pix)
NET NOMAD
CK18W020 C2019 06 30.07882 04 26 46.30 +61 04 42.6 16.6 V A77
CK18W020 C2019 06 30.08868 04 26 46.55 +61 04 40.1 16.6 V A77
CK18W020 C2019 06 30.10019 04 26 46.85 +61 04 36.4 13.9 T 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 None Camera Atik460ex Sensor CCD Sensor temperature -10 °C Binning 1x1 Exposure details 9x60s Observatory MPC code A77 Reference stars catalog (ast) NOMAD
Image resize factor 1 Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2019 Jun 30 05h25m59s Observation modification date 2019 Jun 30 05h52m12s