17P/Holmes (Record n° 2629)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2007 Oct 30 00h14 UT by Nicolas BiverComa Total magnitude (m1) 2.6 Coma diameter 6 ' Coma condensation degree
(DC) 7 r (dist/Sun) 2.459 AU d (dist/Earth) 1.625 AU ICQ full report 17 2007 10 30.01 B 2.6 HV 0.0E 6 7 ICQ XX BIV
Instrument type Naked eye Instrument aperture (0=naked eye) 0 mm Sensor Eye Magnitude visual estimation method
(ICQ code) B Reference stars catalog HIPPARC Observation submission date 2011 Apr 24 12h23m36s