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17P/Holmes

Orbital period : 6.93 years

NASA/JPL elements
IAU/MPC elements


On 2021 Oct 08 02h48 UT by Yoann Degot Longhi


(Copyright Yoann Degot Longhi)

Nuclear magnitude (m2)18.5
m2 standard deviation0.3
Aperture radius used for m25.74 "
r (dist/Sun) 2.679 AU
d (dist/Earth) 2.253 AU
Right ascension05 55 59.06 h m s
Declination+45 55 19.3 ° ' "
MPC report
COD G20
OBS Y.Degot Longhi
MEA Y.Degot Longhi
TEL 0.30-m f/3.8 Reflector + CCD
ACK MPCReport file updated 2021.10.08 10:20:48
AC2 dynt@free.fr
NET UCAC-4
0017P        KC2021 10 08.11640 05 55 59.06 +45 55 19.3          18.8 V      G20
0017P        KC2021 10 08.12411 05 55 59.31 +45 55 22.0          18.6 V      G20
0017P        KC2021 10 08.13228 05 55 59.84 +45 55 18.1          18.1 V      G20
InstrumentNewton 300 F3.8
Instrument typeNewton
Instrument aperture (0=naked eye)300 mm
Instrument focale length1140 mm
Instrument focale/diameter3.8
Filter(s)None
CameraQHY 294M Pro
SensorCCD
MountBig Mount MCMT TDM
Exposure details21x60s
Observatory MPC codeG20
Location83 BRIGNOLES
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.82 "/pix
URL for more information or pictureshttp://www.astrosurf.com/blogs/entry/434-08-oct-21-15p-_17p-_106p-_c2021-q5-_29p/
Observation submission date2021 Oct 08 10h42m30s
Observation modification date2021 Oct 08 14h16m52s

(Record n° 24100)

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