103P/Hartley (Record n° 1002)
Perihelion distance : 1.07 AU
Inclination to ecliptic : 14 °
Orbital period : 6.48 years
Eccentricity : 0.69
NASA/JPL elements
IAU/MPC elements
On 1998 Feb 14 05h46 UT by Nicolas BiverComa Total magnitude (m1) 9.5 Coma diameter 3 ' Coma condensation degree
(DC) 4 r (dist/Sun) 1.272 AU d (dist/Earth) 0.972 AU ICQ full report 103 1998 02 14.24 S 9.5 TJ 25.6L 5 42 3 4 ICQ XX BIV
Instrument type Newton Instrument aperture (0=naked eye) 256 mm Instrument focale/diameter 5 Sensor Eye Power magnification 42 X Magnitude visual estimation method
(ICQ code) S Reference stars catalog (ast) TYCHO Observation submission date 2010 Sep 30 11h29m55s