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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Sep 28 02h10 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Coma Total magnitude (m1)10.1
Aperture radius used for m10.81 '
Nuclear magnitude (m2)12.3
m2 standard deviation0.1
Aperture radius used for m26.5 "
Coma diameter8 '
Afrho251 cm
Afrho error4 cm
r (dist/Sun) 1.044 AU
d (dist/Earth) 0.439 AU
Right ascension06 45 23.38 h m s
Declination+04 01 56.0 ° ' "
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 2018.09.28 
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0021P         C2018 09 28.09002 06 45 23.38 +04 01 56.0          12.3 R      C10
0021P         C2018 09 28.10457 06 45 25.33 +04 00 42.2          12.2 R      C10
0021P         C2018 09 28.11941 06 45 26.78 +03 59 29.2          10.1 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-15 °C
Binning1x1
MountF60a Axis Instruments
AutoguideNo
Exposure details50 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 Sep 28 07h11m01s
Observation modification date2018 Sep 28 09h48m41s

(Record n° 19791)

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