17P/Holmes (Record n° 2640)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2007 Nov 06 22h34 UT by Nicolas BiverComa Total magnitude (m1) 2.9 Coma diameter 15 ' Coma condensation degree
(DC) 6 r (dist/Sun) 2.486 AU d (dist/Earth) 1.620 AU ICQ full report 17 2007 11 06.94 S 2.9 HV 0.0E 15 6 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 12h23m36s