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C/2021 C4 (ATLAS)


NASA/JPL elements
IAU/MPC elements


On 2021 Apr 23 04h07 UT by Jean-Louis Virlichie


(Copyright Jean-Louis Virlichie)

Nuclear magnitude (m2)18
m2 standard deviation0.2
Aperture radius used for m25.6 "
r (dist/Sun) 4.571 AU
d (dist/Earth) 3.633 AU
Right ascension13 22 17.34 h m s
Declination-34 23 40.2 ° ' "
MPC report
COD X03
CON Jean-Louis Virlichie [jl.virlichie@gmail.com]
OBS J. L. Virlichie, P. Traverse
MEA J. L. Virlichie
TEL 0.35-m f/4.7 Newtonian reflector + CCD
ACK MPCReport file updated 2021.04.23 18:41:34
AC2 jl.virlichie@gmail.com
NET Gaia DR2
    CK21C040  C2021 04 23.17153 13 22 17.34 -34 23 40.2          17.9 G      X03
    CK21C040  C2021 04 23.17919 13 22 16.70 -34 23 33.5          18.0 G      X03
    CK21C040  C2021 04 23.18840 13 22 15.74 -34 23 23.1          18.0 G      X03
    CK21C040  C2021 04 23.19762 13 22 14.97 -34 23 14.9          17.8 G      X03
    CK21C040  C2021 04 23.20684 13 22 14.14 -34 23 07.5          18.4 G      X03
Instrumental configurationConfig1
InstrumentONTC 355
Instrument typeNewton
Instrument aperture (0=naked eye)350 mm
Instrument focale length1645 mm
Instrument focale/diameter4.7
Filter(s)L
CameraMoravian G3 KAF 16200
SensorCCD
Sensor size27x21.6 mm2
Sensor pixels number4500x3600
Sensor temperature-20 °C
Binning2x2
MountSW EQ8
MotorizationNo
AutoguideYes
Exposure details10x2mn
Observatory MPC codeX03
LocationPoroto Chili
Reference stars catalogGaia DR2
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.4 "/pix
Observation submission date2021 Apr 24 11h18m16s
Observation modification date2021 Apr 24 11h20m35s

(Record n° 23278)

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