17P/Holmes (Record n° 2621)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2007 Oct 24 19h55 UT by Nicolas BiverComa Total magnitude (m1) 2.8 Coma diameter 1 ' Coma condensation degree
(DC) 9 r (dist/Sun) 2.436 AU d (dist/Earth) 1.637 AU ICQ full report 17 2007 10 24.83 B 2.8 HV 0.0E 1 9 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 12h22m58s