21P/Giacobini-Zinner (Record n° 19702)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Sep 14 09h25 UT by Thierry Noel
(Copyright Thierry Noel)Coma Total magnitude (m1) 9.5 Aperture radius used for m1 0.56 ' Nuclear magnitude (m2) 11.5 m2 standard deviation 0.1 Aperture radius used for m2 6.7 " r (dist/Sun) 1.014 AU d (dist/Earth) 0.394 AU Right ascension 06 05 48.21 h m s Declination +26 05 19.1 ° ' " 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/5.4 Ritchey-Chretien + CCD
COM Aperture radius for m1 m2 : 0.54' 6.4"
ACK MPCReport file updated 2018.09.14 17:43:00
AC2 thierrynoel38a@free.fr
NET UCAC-4
0021P C2018 09 14.39205 06 05 48.21 +26 05 19.1 11.4 N W96
0021P C2018 09 14.39487 06 05 48.81 +26 05 00.9 9.5 T W96
0021P C2018 09 14.39741 06 05 49.35 +26 04 45.3 11.6 N W96
Instrument Marcon RC 400 Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Camera APOGEE ALTA Sensor CCD Sensor temperature -25 °C Binning 2x2 Mount VMA 200 Autoguide No Exposure details 20x20s Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog UCAC-4
Resulting picture sampling (scale) 1.12 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop) Observation submission date 2018 Sep 14 17h53m04s Observation modification date 2018 Oct 01 09h13m04s