1338 Duponta

Duponta

Binary Duponta showing apmag ~16 (JPL Horizons predicted 15.6)
Discovery[1]
Discovered by Boyer, L.
Discovery site Algiers
Discovery date December 4, 1934
Designations
MPC designation 1338
1934 XA
Orbital characteristics[1]
Epoch May 14, 2008
Aphelion 2.5183301
Perihelion 2.0116179
Eccentricity 0.1118583
1245.0685343
199.62778
Inclination 4.81521
325.71508
110.15206
Known satellites 1[2]
Physical characteristics
Dimensions 8 km - 19 km[3]
3.85 hr[1]
12.3[1]

    1338 Duponta (1934 XA) is a main-belt asteroid discovered on December 4, 1934 by Boyer, L. at Algiers. Since the albedo of this asteroid is unknown, the size can only be estimated as between about 8 km - 19 km,[3] based on the absolute magnitude (H) of 12.3.[1]

    Binary system

    Photometric observations in 2007 revealed a ~3 km satellite (diameter ratio of 0.23) with an orbital period of 17.57 hours.[2] Due to the similar size of the primary and secondary the Minor Planet Center lists this as a binary companion.[4]

    References

    1. ↑ 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 1338 Duponta (1934 XA)" (2006-11-21 last obs). Retrieved 2009-10-13.
    2. ↑ 2.0 2.1 "Electronic Telegram No. 910". IAU Central Bureau for Astronomical Telegrams. Retrieved 2011-07-03.
    3. ↑ 3.0 3.1 "Absolute Magnitude (H)". NASA/JPL Near-Earth Object Program. Archived from the original on 26 October 2009. Retrieved 2009-10-12.
    4. ↑ "Satellites and Companions of Minor Planets". IAU / Central Bureau for Astronomical Telegrams. Retrieved 2011-07-03.

    External links