21P/Giacobini-Zinner (Record n° 19471)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Aug 12 02h29 UT by Joel Nicolas
(Copyright Joel Nicolas)Coma Total magnitude (m1) 8.6 Nuclear magnitude (m2) 11.9 m2 standard deviation 0.0 Aperture radius used for m2 5.6 " Coma diameter 2.5 ' r (dist/Sun) 1.096 AU d (dist/Earth) 0.513 AU Right ascension 01 55 33.38 h m s Declination +66 00 57.0 ° ' " MPC report COD A77
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 2018.08.12 17:11:46
AC2 nicolas.joel@wanadoo.fr
NET UCAC-4
0021P C2018 08 12.10325 01 55 33.38 +66 00 57.0 11.9 N A77
0021P C2018 08 12.10501 01 55 34.51 +66 00 55.1 11.9 N A77
0021P C2018 08 12.10668 01 55 35.63 +66 00 53.8 11.9 N A77
0021P C2018 08 12.10834 01 55 36.83 +66 00 52.4 11.9 N A77
0021P C2018 08 12.10947 01 55 37.57 +66 00 51.6 11.9 N A77
Instrumental configuration Config1 Instrument type Newton Instrument aperture (0=naked eye) 410 mm Instrument focale length 1353 mm Instrument focale/diameter 3.3 Filter(s) R Bessel Camera ST8XME Sensor CCD Sensor temperature -18 °C Binning 1x1 Exposure details 4*60s Air mass 1.10 Observatory MPC code A77 Location 04 Dauban Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.4 "/pix Observation submission date 2018 Aug 12 17h14m29s Observation modification date 2018 Aug 12 19h30m31s