21P/Giacobini-Zinner (Record n° 3718)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2011 Jun 28 21h54 UT by Joel Nicolas
(Copyright Joel Nicolas)Nuclear magnitude (m2) 18.9 m2 standard deviation 0.1 Aperture radius used for m2 5.6 " r (dist/Sun) 2.786 AU d (dist/Earth) 2.124 AU Right ascension 15 22 03.49 h m s Declination +15 23 23.0 ° ' " MPC report COD B51
CON J.NICOLAS [nicolas.joel@wanadoo.fr]
OBS J. Nicolas
MEA J. Nicolas
TEL 0.41-m f/3.3 reflector + CCD
ACK MPCReport file updated 2011.06.29 19:17:19
AC2 nicolas.joel@wanadoo.fr
NET USNO-A2.0
0021P C2011 06 28.91267 15 22 03.49 +15 23 23.0 18.8 N B51
0021P C2011 06 28.92846 15 22 02.92 +15 23 22.0 18.9 N B51
Instrument type Newton Instrument aperture (0=naked eye) 410 mm Instrument focale length 1353 mm Instrument focale/diameter 3.3 Filter(s) None Camera ST8XME Sensor CCD Binning 1x1 Exposure total time 1900 s Air mass 1.22 Observatory MPC code B51 Location 06 Vallauris Reference stars catalog USNO-A2.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.4 "/pix Observation submission date 2011 Jun 30 16h28m52s Observation modification date 2011 Jun 30 16h30m51s