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57P/duToit-Neujmin-Delporte

Orbital period : 6.40 years

NASA/JPL elements
IAU/MPC elements


On 2021 Nov 08 17h20 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)10.8
Aperture radius used for m10.4 '
Nuclear magnitude (m2)14.1
m2 standard deviation0.2
Aperture radius used for m25.8 "
Afrho1943 cm
Afrho error20 cm
r (dist/Sun) 1.732 AU
d (dist/Earth) 1.994 AU
Right ascension19 09 24.62 h m s
Declination-20 29 54.4 ° ' "
MPC report
COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS F. Kugel
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 file updated 2021.11.08 22:32:54
AC2 fkugel@free.fr
NET USNO-B1.0
0057P        KC2021 11 08.72199 19 09 24.62 -20 29 54.4          13.9 I      A77
0057P        KC2021 11 08.72766 19 09 25.63 -20 29 53.0          14.2 I      A77
0057P        KC2021 11 08.73512 19 09 26.97 -20 29 51.7          10.8 T      A77
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)IR pro
CameraAtik460ex
SensorCCD
Sensor temperature-20 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details3x60s
Observatory MPC codeA77
Reference stars catalogUSNO-B1.0
Resulting picture sampling (scale)0.83 "/pix
Remarks or commentsAfrho (10000 km)
Observation submission date2021 Nov 08 22h37m26s
Observation modification date2021 Nov 08 23h15m24s

(Record n° 24326)

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