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C/2021 S4 (Tsuchinshan)

Orbital period : 2014.00 years

NASA/JPL elements
IAU/MPC elements


On 2025 Mar 02 20h02 UT by Francois Kugel


(Copyright Francois Kugel)

Nuclear magnitude (m2)18
m2 standard deviation0.1
Aperture radius used for m25.8 "
r (dist/Sun) 7.228 AU
d (dist/Earth) 6.667 AU
Right ascension07 12 04.07 h m s
Declination+40 50 53.7 ° ' "
MPC report
COD A77
CON F. Kugel
OBS F. Kugel
MEA F. Kugel
TEL 0.40-m f/2.8 reflector + CCD
NUM 36
ACK MPCReport file updated 2025.03.03 07:52:59
NET APASS
AC2 fkugel@free.fr
    CK21S040 KC2025 03 02.83494 07 12 04.07 +40 50 53.7          17.9 R      A77
    CK21S040 KC2025 03 02.84386 07 12 04.11 +40 50 50.9          18.1 R      A77
    CK21S040 KC2025 03 02.85277 07 12 03.99 +40 50 51.5          18.1 R      A77
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)None
CameraAtik460ex
SensorCCD
Sensor temperature-20 °C
Binning1x1
MountMeade MCMT-TDM
Exposure details33x60s
Observatory MPC codeA77
Reference stars catalogAPASS
Used softwaresTycho Tracker
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2025 Mar 03 08h54m48s
Observation modification date2025 Mar 03 09h47m45s

(Record n° 29565)

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