17P/Holmes (Record n° 2669)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2008 Jan 01 00h14 UT by Nicolas BiverComa Total magnitude (m1) 3.5 Coma diameter 78 ' Coma condensation degree
(DC) 2 r (dist/Sun) 2.717 AU d (dist/Earth) 1.979 AU ICQ full report 17 2008 01 01.01 S 3.5 HV 0.0E 78 2 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