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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Sep 28 09h06 UT by Thierry Noel


(Copyright Thierry Noel)

Coma Total magnitude (m1)10.4
Aperture radius used for m10.56 '
Nuclear magnitude (m2)12.5
m2 standard deviation0.1
Aperture radius used for m26.7 "
r (dist/Sun) 1.044 AU
d (dist/Earth) 0.439 AU
Right ascension06 46 02.25 h m s
Declination+03 37 42.3 ° ' "
MPC report
COD W96
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, J.-B. de Vanssay, T. Noel
MEA T. Noel
TEL 0.4-m f/5 Ritchey-Chretien + CCD
COM Aperture radius for m1 m2 : 0.54' 6.4"
ACK MPCReport file updated 2018.09.28 12:14:04
AC2 thierrynoel38a@free.fr
NET UCAC-4
0021P         C2018 09 28.37909 06 46 02.25 +03 37 42.3          12.4 N      W96
0021P         C2018 09 28.38524 06 46 03.07 +03 37 10.8          10.4 T      W96
0021P         C2018 09 28.39064 06 46 03.73 +03 36 43.5          12.5 N      W96
InstrumentMarcon RC 400
Instrument typeRitchey-Chretien
Instrument aperture (0=naked eye)400 mm
Instrument focale length2000 mm
Instrument focale/diameter5
CameraAPOGEE ALTA
SensorCCD
Sensor temperature-25 °C
Binning2x2
MountVMA 200
AutoguideNo
Exposure details16x1mn
Observatory MPC codeW96
LocationSan Pedro de Atacama, Chile
Reference stars catalogUCAC-4
Photometry|Astrometry softwareASTROMETRICA
Resulting picture sampling (scale)1.12 "/pix
Image processingPrism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop)
Observation submission date2018 Sep 28 12h21m11s
Observation modification date2018 Oct 01 09h08m07s

(Record n° 19796)

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