17P/Holmes (Record n° 86)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2008 Jan 30 21h07 UT by Nicolas BiverComa Total magnitude (m1) 4.2 Coma diameter 75 ' Coma condensation degree
(DC) 1 r (dist/Sun) 2.842 AU d (dist/Earth) 2.399 AU ICQ full report 17 2008 01 30.88 S 4.2 HV 0.0E 75 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 HV Observation submission date 2010 Mar 06 09h41m33s