21P/Giacobini-Zinner (Record n° 19806)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Sep 29 03h13 UT by Joel NicolasComa Total magnitude (m1) 10.2 Aperture radius used for m1 1 ' Nuclear magnitude (m2) 12.3 m2 standard deviation 0.0 Aperture radius used for m2 8.4 " Afrho 234 cm Afrho error 2 cm r (dist/Sun) 1.048 AU d (dist/Earth) 0.444 AU Right ascension 06 47 42.70 h m s Declination +02 33 46.2 ° ' " MPC report COD A77
CON J. NICOLAS [nicolas.joel@wanadoo.fr]
OBS J. Nicolas
MEA J. Nicolas
TEL 0.41-m f/3.3 reflector + CCD
ACK MPCReport file updated 2018.09.29 11:21:18
AC2 nicolas.joel@wanadoo.fr
NET UCAC-4
0021P C2018 09 29.13428 06 47 42.70 +02 33 46.2 12.3 N A77
0021P C2018 09 29.13646 06 47 42.99 +02 33 35.1 12.3 N A77
0021P C2018 09 29.14255 06 47 43.72 +02 33 04.6 12.3 N A77
0021P C2018 09 29.14581 06 47 44.12 +02 32 48.4 12.3 N A77
0021P C2018 09 29.14778 06 47 44.39 +02 32 38.4 12.3 N A77
Instrumental configuration Config1 Instrument type Newton Instrument aperture (0=naked eye) 410 mm Instrument focale length 1353 mm Instrument focale/diameter 3.3 Filter(s) R Bessel Camera ST8XME Sensor CCD Sensor temperature -18 °C Binning 1x1 Observatory MPC code A77 Location 04 Dauban Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Observation submission date 2018 Sep 29 11h24m15s Observation modification date 2018 Sep 29 12h07m18s