1338 Duponta

1338 Duponta
Duponta seen at approx. 16 apmag in 2009
Discovery[1]
Discovered byL. Boyer
Discovery siteAlgiers Obs.
Discovery date4 December 1934
Designations
(1338) Duponta
Pronunciation/djuːˈpɒntə/
Named after
Marc Dupont
(discoverer's nephew)[2]
1934 XA
main-belt · (inner)
Flora[3][4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc82.42 yr (30,104 days)
Aphelion2.5179 AU
Perihelion2.0108 AU
2.2644 AU
Eccentricity0.1120
3.41 yr (1,245 days)
102.88°
0° 17m 21.48s / day
Inclination4.8170°
325.63°
110.63°
Known satellites1 (P: 17.57; D: 1.77 km)[3][5][6]
Physical characteristics
Dimensions7.470±0.114 km[7]
7.68±0.06 (derived)[6]
7.875±0.062 km[8]
7.88 km (taken)[3]
7.885 km[9]
3.85449±0.0003 h[10][a]
3.85453±0.00009 h[5]
3.85453±0.0003 h[10][b]
0.2159[3][9]
0.2286±0.0274[8]
0.251±0.040[7]
S (assumed)[3]
12.30±0.03 (R)[10] · 12.39±0.2 (R)[10] · 12.6[6] · 12.7[1] · 12.75[8] · 12.798±0.064[3][9]

1338 Duponta, provisional designation 1934 XA, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 7.8 kilometers in diameter.

It was discovered on 4 December 1934, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa.[11] It was named after the discoverer's nephew, Marc Dupont.[2] The asteroid's unnamed minor-planet moon was discovered in March 2007. It measures approximately 1.77 kilometers in diameter and has an orbital period of 17.57 hours.[5]

  1. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Gajdos-2007 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference johnstonsarchive was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  10. ^ a b c d Cite error: The named reference Pravec-2012a was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).


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