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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Aug 25 22h59 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Coma Total magnitude (m1)9.5
Aperture radius used for m10.54 '
Nuclear magnitude (m2)11.4
m2 standard deviation0.0
Aperture radius used for m26.5 "
Coma diameter5.10 '
Afrho705 cm
r (dist/Sun) 1.039 AU
d (dist/Earth) 0.435 AU
Right ascension04 17 18.79 h m s
Declination+56 14 38.4 ° ' "
MPC report
COD C10
CON J.-F. Soulier [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.30-m f/3.8 Newtonian reflector + CCD
ACK MPCReport file updated 2018.08.25
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0021P         C2018 08 25.95750 04 17 18.79 +56 14 38.4          11.4 R      C10
0021P         C2018 08 25.96760 04 17 23.69 +56 13 57.6          11.4 R      C10
0021P         C2018 08 25.97767 04 17 28.75 +56 13 15.1           9.5 T      C10
Instrument typeNewton
Instrument aperture (0=naked eye)300 mm
Instrument focale length1140 mm
Instrument focale/diameter3.8
Filter(s)Rc (UBVRI)
CameraST8-XME
SensorCCD
Sensor temperature-20 °C
Binning1x1
MountF60a Axis Instruments
AutoguideNo
Exposure details5 x 20s
Observatory MPC codeC10
LocationSeine et Marne (77)
Reference stars catalogUCAC-4
Photometry|Astrometry softwareASTROMETRICA
Resulting picture sampling (scale)1.62 "/pix
Observation submission date2018 Aug 26 02h13m45s
Observation modification date2018 Aug 26 11h12m58s

(Record n° 19557)

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