103P/Hartley (Record n° 988)
Orbital period : 6.48 years
NASA/JPL elements
IAU/MPC elements
On 1997 Dec 28 06h00 UT by Nicolas BiverComa Total magnitude (m1) 8.6 Coma diameter 5 ' Coma condensation degree
(DC) 5 Tail length 0.1 ° Tail position angle
(PA) 55 ° r (dist/Sun) 1.035 AU d (dist/Earth) 0.832 AU ICQ full report 103 1997 12 28.25 B 8.6 TJ 25.6L 5 42 5 5 0.1 55 ICQ XX BIV
Instrument type Newton Instrument aperture (0=naked eye) 256 mm Instrument focale length 1280 mm Instrument focale/diameter 5 Sensor Eye Power magnification 42 X Magnitude visual estimation method
(ICQ code) B Reference stars catalog TYCHO Observation submission date 2010 Sep 30 11h28m15s