17P/Holmes (Record n° 2672)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2008 Jan 10 21h22 UT by Nicolas BiverComa Total magnitude (m1) 3.9 Coma diameter 60 ' Coma condensation degree
(DC) 1 r (dist/Sun) 2.755 AU d (dist/Earth) 2.097 AU ICQ full report 17 2008 01 10.89 S 3.9:HV 0.0E 60 1 ICQ XX BIV
Instrument type Naked eye Instrument aperture (0=naked eye) 0 mm Sensor Eye Magnitude visual estimation method
(ICQ code) S Reference stars catalog HIPPARC Observation submission date 2011 Apr 24 12h23m38s