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57P/duToit-Neujmin-Delporte

Orbital period : 6.40 years

NASA/JPL elements
IAU/MPC elements


On 2021 Nov 16 17h16 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)11.9
Aperture radius used for m10.2 '
Nuclear magnitude (m2)14.4
m2 standard deviation0.1
Aperture radius used for m25.8 "
Afrho1167 cm
r (dist/Sun) 1.742 AU
d (dist/Earth) 2.059 AU
Right ascension19 32 07.74 h m s
Declination-19 55 21.8 ° ' "
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 2021.11.17 07:22:01
AC2 fkugel@free.fr
NET USNO-B1.0
0057P         C2021 11 16.71946 19 32 07.74 -19 55 21.8          14.3 I      A77
0057P         C2021 11 16.72594 19 32 08.82 -19 55 19.9          14.5 I      A77
0057P         C2021 11 16.73324 19 32 10.10 -19 55 18.0          11.9 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 details1x60s
Observatory MPC codeA77
Reference stars catalogUSNO-B1.0
Resulting picture sampling (scale)0.83 "/pix
Remarks or commentsAfrho 10000km
Observation submission date2021 Nov 17 07h33m16s
Observation modification date2021 Nov 17 15h13m01s

(Record n° 24391)

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