C/2021 T4 (Lemmon) (Record n° 24323)
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 08 04h08 UT by Jean-Louis Virlichie
(Copyright Jean-Louis Virlichie)Nuclear magnitude (m2) 19.4 m2 standard deviation 0.2 Aperture radius used for m2 5.6 " r (dist/Sun) 6.911 AU d (dist/Earth) 5.944 AU Right ascension 03 41 37.09 h m s Declination +10 05 18.4 ° ' " 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 2021.11.08 18:28:16
AC2 jl.virlichie@gmail.com
NET Gaia DR2
CK21T040 C2021 11 08.17231 03 41 37.09 +10 05 18.4 19.2 G X03
CK21T040 KC2021 11 08.18010 03 41 36.71 +10 05 15.6 19.4 G X03
CK21T040 KC2021 11 08.19793 03 41 35.83 +10 05 11.1 19.7 G X03
CK21T040 C2021 11 08.20574 03 41 35.49 +10 05 09.3 19.1 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 8x3mn 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 Nov 08 19h56m21s Observation modification date 2021 Nov 08 20h01m58s