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17P/Holmes

Orbital period : 6.93 years

NASA/JPL elements
IAU/MPC elements


On 2021 Aug 11 00h43 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)16.3
m2 standard deviation0.1
Aperture radius used for m26 "
r (dist/Sun) 2.450 AU
d (dist/Earth) 2.694 AU
Right ascension04 41 09.14 h m s
Declination+39 32 37.9 ° ' "
MPC report
COD L27
CON J.-F. Soulier [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.25-m f/3.5 Newtonian reflector + CCD
ACK L27 2021.08.11 07:56:06
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0017P        KC2021 08 11.02995 04 41 09.14 +39 32 37.9          16.4 R      L27
0017P        KC2021 08 11.03936 04 41 10.19 +39 32 42.1          16.3 R      L27
0017P        KC2021 08 11.04875 04 41 11.17 +39 32 46.6          16.3 R      L27
Instrument typeNewton
Instrument aperture (0=naked eye)250 mm
Instrument focale length875 mm
Instrument focale/diameter3.5
Filter(s)None
CameraATIK 414-EX-
SensorCCD
Sensor temperature-10 °C
Binning1x1
MountPARAMOUNT-ME-
AutoguideNo
Exposure details60 x 30s
Observatory MPC codeL27
LocationDauban (04)
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.49 "/pix
Observation submission date2021 Aug 11 07h58m46s
Observation modification date2021 Aug 11 08h07m59s

(Record n° 23767)

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