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C/2021 T1 (Lemmon)


NASA/JPL elements
IAU/MPC elements


On 2021 Oct 07 02h16 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Nuclear magnitude (m2)18.8
m2 standard deviation0.2
Aperture radius used for m25.8 "
r (dist/Sun) 3.059 AU
d (dist/Earth) 2.239 AU
Right ascension23 32 53.20 h m s
Declination+43 24 43.3 ° ' "
MPC report
COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
COM 0.8"/pix m2=18.8  with 16x120s not tail diameter coma13"25
COM cometary appearance
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.10.07 18:20:40
AC2 JGBosch@free.fr
NET UCAC-4
     C60DRY2 KC2021 10 07.09471 23 32 53.20 +43 24 43.3          19.1 R      A77
     C60DRY2 KC2021 10 07.10073 23 32 52.28 +43 24 38.9          18.6 R      A77
     C60DRY2 KC2021 10 07.10750 23 32 50.20 +43 24 29.3          18.8 R      A77
InstrumentNEWTON 400
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
CameraAtik 460ex
SensorCCD
Sensor temperature-10 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details20X2MIN
Observatory MPC codeA77
Locationcollonges sous salève
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 Oct 08 10h44m53s
Observation modification date2022 Apr 08 08h48m30s

(Record n° 24101)

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