21P/Giacobini-Zinner (Record n° 19629)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Sep 07 09h33 UT by Thierry Noel
(Copyright Thierry Noel)Coma Total magnitude (m1) 9.2 Aperture radius used for m1 0.56 ' Nuclear magnitude (m2) 11.1 m2 standard deviation 0.0 Aperture radius used for m2 6.7 " r (dist/Sun) 1.014 AU d (dist/Earth) 0.394 AU Right ascension 05 36 26.80 h m s Declination +38 08 17.8 ° ' " 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 : 0.56' 6.7"
ACK MPCReport file updated 2018.09.07 14:11:41
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0021P C2018 09 07.39793 05 36 26.80 +38 08 17.8 11.1 N W96
0021P C2018 09 07.40133 05 36 27.77 +38 07 57.9 9.2 T W96
0021P C2018 09 07.40580 05 36 29.00 +38 07 30.7 11.1 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 16x20s Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog Gaia DR1
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 07 14h17m19s Observation modification date 2018 Sep 14 21h40m38s