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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Sep 21 09h17 UT by Thierry Noel


(Copyright Thierry Noel)

Coma Total magnitude (m1)9.9
Aperture radius used for m10.56 '
Nuclear magnitude (m2)11.8
m2 standard deviation0.0
Aperture radius used for m26.7 "
r (dist/Sun) 1.024 AU
d (dist/Earth) 0.410 AU
Right ascension06 28 21.00 h m s
Declination+14 16 24.7 ° ' "
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 : 0.54' 6.4"
ACK MPCReport file updated 2018.09.21 15:18:21
AC2 thierrynoel38a@free.fr
NET UCAC-4
0021P         C2018 09 21.38655 06 28 21.00 +14 16 24.7          11.8 N      W96
0021P         C2018 09 21.39105 06 28 21.74 +14 15 57.7           9.9 T      W96
0021P         C2018 09 21.39601 06 28 22.58 +14 15 28.8          11.8 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 details24x20s
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 21 15h26m12s
Observation modification date2018 Oct 01 09h10m31s

(Record n° 19765)

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