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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 2018 Sep 14 09h25 UT by Thierry Noel


(Copyright Thierry Noel)

Coma Total magnitude (m1)9.5
Aperture radius used for m10.56 '
Nuclear magnitude (m2)11.5
m2 standard deviation0.1
Aperture radius used for m26.7 "
r (dist/Sun) 1.014 AU
d (dist/Earth) 0.394 AU
Right ascension06 05 48.21 h m s
Declination+26 05 19.1 ° ' "
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 2018.09.14 17:43:00
AC2 thierrynoel38a@free.fr
NET UCAC-4
0021P         C2018 09 14.39205 06 05 48.21 +26 05 19.1          11.4 N      W96
0021P         C2018 09 14.39487 06 05 48.81 +26 05 00.9           9.5 T      W96
0021P         C2018 09 14.39741 06 05 49.35 +26 04 45.3          11.6 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 details20x20s
Observatory MPC codeW96
LocationSan Pedro de Atacama, Chile
Reference stars catalogUCAC-4
Resulting picture sampling (scale)1.12 "/pix
Image processingPrism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop)
Observation submission date2018 Sep 14 17h53m04s
Observation modification date2018 Oct 01 09h13m04s

(Record n° 19702)

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