21P/Giacobini-Zinner (Record n° 3537)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2011 May 20 22h19 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Coma Total magnitude (m1) 19.6 Aperture radius used for m1 0.6 ' r (dist/Sun) 3.081 AU d (dist/Earth) 2.178 AU Right ascension 15 58 23.57 h m s Declination +12 25 13.8 ° ' " MPC report COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.255-m f/3.6 Newtonian reflector + CCD
ACK MPCReport file updated 2011.05.20
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0021P KC2011 05 20.92995 15 58 23.57 +12 25 13.8 19.5 T C10
0021P KC2011 05 20.94517 15 58 22.58 +12 25 21.8 19.6 T C10
Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 900 mm Instrument focale/diameter 3.6 Camera ST7-XMEd Sensor CCD Sensor size 6.9 x 4.6 mm2 Sensor pixels number 765 x 510 Sensor temperature -15 °C Binning 1x1 Mount PERL-VIXEN Autoguide Yes Seeing 4 Moon elongation 56 ° Air mass 1.34 Observatory MPC code C10 Location 77 Reference stars catalog USNO-B1.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 2.04 "/pix Image processing PRISMV8 APE DDP FC Observation submission date 2011 May 21 10h44m44s Observation modification date 2011 Jun 04 15h49m56s