(196256) 2003 EH1

(196256) 2003 EH1
Discovery[1][2]
Discovered by LONEOS (699)
Discovery date 6 March 2003
Designations
Amor NEO[1]
extinct comet
Orbital characteristics[1]
Epoch 2014-May-23[1]
Aphelion 5.0555 AU (Q)
Perihelion 1.1891 AU (q)
3.1223 AU (a)
Eccentricity 0.61915
5.52 yr
Inclination 70.876°
282.96°
Physical characteristics
Dimensions ≈4 km?†
16.2[1]

    (196256) 2003 EH1 is a small Solar System body discovered in March 2003.[2][3] Peter Jenniskens (2003–2004) proposed that it is the parent body of the Quadrantid meteor shower.[4][5] 2003 EH1 is likely an extinct comet and may even be related to the comet C/1490 Y1. 2003 EH1 came to perihelion on 12 March 2014.[1]

    The orbit of 2003 EH1

    Notes

    †assuming a cometary albedo of 0.04

    References

    1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 196256 (2003 EH1)" (2014-03-23 last obs and observation arc=11.05 years). Jet Propulsion Laboratory. Retrieved 2014-04-18.
    2. ↑ 2.0 2.1 "IAUC 8252: 2003kw; 2003 EH_1, THE QUADRANTIDS". IAU Central Bureau for Astronomical Telegrams. 2003-12-08. Retrieved 2012-12-09.
    3. ↑ "Dead comet spawned New Year meteors". Nature News. 2003. doi:10.1038/news031229-5.
    4. ↑ Jenniskens, Peter (2004). "2003 EH1 Is the Quadrantid Shower Parent Comet". The Astronomical Journal 127 (5): 3018–3022. Bibcode:2004AJ....127.3018J. doi:10.1086/383213.
    5. ↑ Porubčan, V.; Kornoš, L. (2005). "The Quadrantid meteor stream and 2003 EH1". Contributions of the Astronomical Observatory Skalnaté Pleso 35 (1): 5–16. Bibcode:2005CoSka..35....5P.

    External links