21P/Giacobini-Zinner (Record n° 19796)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Sep 28 09h06 UT by Thierry Noel
(Copyright Thierry Noel)Coma Total magnitude (m1) 10.4 Aperture radius used for m1 0.56 ' Nuclear magnitude (m2) 12.5 m2 standard deviation 0.1 Aperture radius used for m2 6.7 " r (dist/Sun) 1.044 AU d (dist/Earth) 0.439 AU Right ascension 06 46 02.25 h m s Declination +03 37 42.3 ° ' " MPC report COD W96
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, J.-B. de Vanssay, T. Noel
MEA T. Noel
TEL 0.4-m f/5 Ritchey-Chretien + CCD
COM Aperture radius for m1 m2 : 0.54' 6.4"
ACK MPCReport file updated 2018.09.28 12:14:04
AC2 thierrynoel38a@free.fr
NET UCAC-4
0021P C2018 09 28.37909 06 46 02.25 +03 37 42.3 12.4 N W96
0021P C2018 09 28.38524 06 46 03.07 +03 37 10.8 10.4 T W96
0021P C2018 09 28.39064 06 46 03.73 +03 36 43.5 12.5 N W96
Instrument Marcon RC 400 Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2000 mm Instrument focale/diameter 5 Camera APOGEE ALTA Sensor CCD Sensor temperature -25 °C Binning 2x2 Mount VMA 200 Autoguide No Exposure details 16x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.12 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop) Observation submission date 2018 Sep 28 12h21m11s Observation modification date 2018 Oct 01 09h08m07s