(196256) 2003 EH1

(196256) 2003 EH1
Discovery[1][2]
Discovered by LONEOS (699)
Discovery date 6 March 2003
Designations
MPC designation (196256) 2003 EH1
Amor NEO[1]
extinct comet
Orbital characteristics[1]
Epoch 2015-Jun-27 (JD 2457200.5)
T_jup = 2.065
Aphelion 5.055287 AU (Q)
Perihelion 1.189652 AU (q)
3.12247 AU (a)
Eccentricity 0.619003
5.52 yr
Inclination 70.872425°
282.967937°
Physical characteristics
Dimensions 2.6–4.0 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 an albedo between 0.04 (typical of extinct comet nuclei) and 0.09.

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 196256 (2003 EH1)" (2014-03-23 last obs and observation arc=11.05 years). Jet Propulsion Laboratory. Retrieved 2015-10-14.
    2. 1 2 "IAUC 8252: 2003kw; 2003 EH_1, THE QUADRANTIDS". IAU Central Bureau for Astronomical Telegrams. 2003-12-08. Retrieved 2015-10-14.
    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

    This article is issued from Wikipedia - version of the Sunday, February 07, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.