21P/Giacobini-Zinner (Record n° 19176)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 May 18 07h48 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 16 m2 standard deviation 0.2 Aperture radius used for m2 6.4 " r (dist/Sun) 1.812 AU d (dist/Earth) 1.333 AU Right ascension 20 07 56.81 h m s Declination +26 18 47.4 ° ' " 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 2018.05.18 12:40:14
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0021P C2018 05 18.32468 20 07 56.81 +26 18 47.4 16.1 N W96
0021P C2018 05 18.34096 20 07 58.24 +26 19 15.7 15.8 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 QHY Sensor CCD Sensor temperature -20 °C Binning 2x2 Mount VMA 200 Autoguide No Exposure details 10x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.07 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (crop, levels, ddp) Observation submission date 2018 May 18 12h44m38s Observation modification date 2018 May 18 13h55m08s