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17P/Holmes

Orbital period : 6.93 years

NASA/JPL elements
IAU/MPC elements


On 2021 Aug 10 00h44 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)16.2
m2 standard deviation0.1
Aperture radius used for m26 "
r (dist/Sun) 2.447 AU
d (dist/Earth) 2.701 AU
Right ascension04 39 20.66 h m s
Declination+39 24 52.8 ° ' "
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 2021.08.10 08:40:17
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0017P         C2021 08 10.03069 04 39 20.66 +39 24 52.8          16.3 R      L27
0017P         C2021 08 10.04161 04 39 21.78 +39 24 56.9          16.2 R      L27
0017P         C2021 08 10.05290 04 39 22.97 +39 25 02.4          16.2 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 10 08h44m56s
Observation modification date2021 Aug 10 10h04m03s

(Record n° 23750)

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