21P/Giacobini-Zinner (Record n° 19548)
Perihelion distance : 1.01 AU
Inclination to ecliptic : 32 °
Orbital period : 6.52 years
Eccentricity : 0.71
NASA/JPL elements
IAU/MPC elements
On 2018 Aug 22 02h33 UT by Joel NicolasComa Total magnitude (m1) 8.6 Magnitude (MPC m2) 11.2 Magnitude standard deviation 0.1 Aperture radius for m2 7.0 " Afrho 788 cm Afrho error 39 cm r (dist/Sun) 1.050 AU d (dist/Earth) 0.450 AU Right ascension 55.79979 ° Declination +60.23539 ° 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 2018.08.23 18:28:12
AC2 nicolas.joel@wanadoo.fr
NET UCAC-4
0021P C2018 08 22.10649 03 43 11.95 +60 14 07.4 11.2 N A77
0021P C2018 08 22.10769 03 43 12.65 +60 14 03.3 11.2 N A77
0021P C2018 08 22.10888 03 43 13.34 +60 13 59.4 11.2 N A77
0021P C2018 08 22.11005 03 43 13.91 +60 13 55.6 11.3 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 R Bessel Camera ST8XME Sensor CCD Sensor temperature -15 °C Binning 1x1 Observatory MPC code A77 Location 04 Dauban Reference stars catalog (ast) UCAC-4
Used softwares ASTROMETRICA Observation submission date 2018 Aug 23 18h30m40s Observation modification date 2018 Aug 24 16h55m12s