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C/2021 P4 (ATLAS)

Orbital period : 5369.00 years

NASA/JPL elements
IAU/MPC elements


On 2022 May 19 20h29 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)14
Aperture radius used for m10.4 '
Nuclear magnitude (m2)15.9
m2 standard deviation0.2
Aperture radius used for m25.8 "
r (dist/Sun) 1.578 AU
d (dist/Earth) 2.182 AU
Right ascension05 14 52.26 h m s
Declination+57 56 43.8 ° ' "
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 2022.05.20 08:52:14
AC2 fkugel@free.fr
NET UCAC-4
    CK21P040  C2022 05 19.85348 05 14 52.26 +57 56 43.8          15.7 V      A77
    CK21P040  C2022 05 19.85673 05 14 53.40 +57 56 41.2          16.1 V      A77
    CK21P040  C2022 05 19.86078 05 14 54.77 +57 56 37.8          16.0 V      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-10 °C
MountMeade-MCMT-TDM
Exposure details10x60s
Observatory MPC codeA77
Reference stars catalogUCAC-4
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2022 May 20 08h55m42s
Observation modification date2022 May 20 15h01m41s

(Record n° 25557)

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