C/2021 C4 (ATLAS) (Record n° 23278)
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 deviation 0.2 Aperture radius used for m2 5.6 " r (dist/Sun) 4.571 AU d (dist/Earth) 3.633 AU Right ascension 13 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 configuration Config1 Instrument ONTC 355 Instrument type Newton Instrument aperture (0=naked eye) 350 mm Instrument focale length 1645 mm Instrument focale/diameter 4.7 Filter(s) L Camera Moravian G3 KAF 16200 Sensor CCD Sensor size 27x21.6 mm2 Sensor pixels number 4500x3600 Sensor temperature -20 °C Binning 2x2 Mount SW EQ8 Motorization No Autoguide Yes Exposure details 10x2mn Observatory MPC code X03 Location Poroto Chili Reference stars catalog Gaia DR2
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.4 "/pix Observation submission date 2021 Apr 24 11h18m16s Observation modification date 2021 Apr 24 11h20m35s