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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Sep 07 09h33 UT by Thierry Noel


(Copyright Thierry Noel)

Coma Total magnitude (m1)9.2
Aperture radius used for m10.56 '
Nuclear magnitude (m2)11.1
m2 standard deviation0.0
Aperture radius used for m26.7 "
r (dist/Sun) 1.014 AU
d (dist/Earth) 0.394 AU
Right ascension05 36 26.80 h m s
Declination+38 08 17.8 ° ' "
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/5.4 Ritchey-Chretien + CCD
COM Aperture radius for m1 m2 : 0.56' 6.7"
ACK MPCReport file updated 2018.09.07 14:11:41
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0021P         C2018 09 07.39793 05 36 26.80 +38 08 17.8          11.1 N      W96
0021P         C2018 09 07.40133 05 36 27.77 +38 07 57.9           9.2 T      W96
0021P         C2018 09 07.40580 05 36 29.00 +38 07 30.7          11.1 N      W96
InstrumentMarcon RC 400
Instrument typeRitchey-Chretien
Instrument aperture (0=naked eye)400 mm
Instrument focale length2160 mm
Instrument focale/diameter5.4
CameraAPOGEE ALTA
SensorCCD
Sensor temperature-25 °C
Binning2x2
MountVMA 200
AutoguideNo
Exposure details16x20s
Observatory MPC codeW96
LocationSan Pedro de Atacama, Chile
Reference stars catalogGaia DR1
Photometry|Astrometry softwareASTROMETRICA
Resulting picture sampling (scale)1.12 "/pix
Image processingPrism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop)
Observation submission date2018 Sep 07 14h17m19s
Observation modification date2018 Sep 14 21h40m38s

(Record n° 19629)

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