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C/2018 W2 (Africano)


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 m10.465 '
Nuclear magnitude (m2)14.6
m2 standard deviation0.3
Aperture radius used for m29.3 "
Afrho115 cm
Afrho error20 cm
r (dist/Sun) 1.507 AU
d (dist/Earth) 1.561 AU
Right ascension04 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 configurationConfig1
Instrument typeSchmidt-Cassegrain
Instrument aperture (0=naked eye)200 mm
Instrument focale length800 mm
Instrument focale/diameter4
Filter(s)r
CameraST2000xm
SensorCCD
Sensor temperature-10 °C
Binning1x1
MountMeade-MCMT
Exposure details21x30s
Observatory MPC codeA77
Reference stars catalogUCAC-4
Image resize factor1
Resulting picture sampling (scale)1.86 "/pix
Remarks or commentsAfRho(10000 km)=115 cm
Observation submission date2019 Aug 09 06h34m53s
Observation modification date2019 Aug 09 07h27m48s

(Record n° 20870)

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