C/2018 W2 (Africano) (Record n° 20870)
NASA/JPL elements
IAU/MPC elements
On 2019 Aug 09 02h51 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 13 Aperture radius used for m1 0.465 ' Nuclear magnitude (m2) 14.6 m2 standard deviation 0.3 Aperture radius used for m2 9.3 " Afrho 115 cm Afrho error 20 cm r (dist/Sun) 1.507 AU d (dist/Earth) 1.561 AU Right ascension 04 18 33.84 h m s Declination +58 30 07.5 ° ' " MPC report COD A77
CON FRANCOIS KUGEL [fkugel@wanadoo.fr]
OBS A. Klotz ; F. Kugel
MEA F. Kugel
TEL 0.20-m f/4 Schmidt-Cassegrain + CCD
ACK MPCReport file updated 2019.08.09 06:29:48
AC2 fkugel@wanadoo.fr
COM CCD ST2000XM + r'sloan filter
COM Photometry aperture radius used for m2 = 9.3 arcsec (5 pixels, 1.86 arcsec/pix)
COM Photometry aperture radius used for m1 = 0.465 arcmin (15 pixels, 1.86 arcsec/pix)
NET UCAC-4
CK18W020 KC2019 08 09.11843 04 18 33.84 +58 30 07.5 14.3 R A77
CK18W020 KC2019 08 09.12416 04 18 33.44 +58 30 05.8 14.8 R A77
CK18W020 KC2019 08 09.13608 04 18 32.39 +58 30 03.5 13.0 T A77
Instrumental configuration Config1 Instrument type Schmidt-Cassegrain Instrument aperture (0=naked eye) 200 mm Instrument focale length 800 mm Instrument focale/diameter 4 Filter(s) r Camera ST2000xm Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Meade-MCMT Exposure details 21x30s Observatory MPC code A77 Reference stars catalog UCAC-4
Image resize factor 1 Resulting picture sampling (scale) 1.86 "/pix Remarks or comments AfRho(10000 km)=115 cm Observation submission date 2019 Aug 09 06h34m53s Observation modification date 2019 Aug 09 07h27m48s