9826 Ehrenfreund

9826 Ehrenfreund
Discovery [1]
Discovered byC. J. van Houten
I. van Houten
T. Gehrels
Discovery sitePalomar Obs.
Discovery date16 October 1977
Designations
(9826) Ehrenfreund
Named after
Pascale Ehrenfreund
(Austrian astrophysicist)[2]
2114 T-3 · 1993 VH2
main-belt · Eos [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc39.66 yr (14,486 days)
Aphelion3.2560 AU
Perihelion2.7308 AU
2.9934 AU
Eccentricity0.0877
5.18 yr (1,892 days)
295.74°
0° 11m 25.08s / day
Inclination8.9529°
215.57°
112.60°
Physical characteristics
Dimensions6.94 km (calculated)[3]
8.378±0.267 km[4][5]
3.7484±0.0013 h[6]
0.14 (assumed)[3]
0.191±0.024[4][5]
S [3]
12.8[4] · 13.096±0.002 (R)[6] · 13.1[1] · 13.38±0.26[7] · 13.55[3]

9826 Ehrenfreund, provisional designation 2114 T-3, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 7 kilometers in diameter.

The asteroid was discovered on 16 October 1977, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at the Palomar Observatory in California, United States.[8] It was later named for Austrian astrophysicist and biochemist Pascale Ehrenfreund.[2]

  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 Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference MPC-Ehrenfreund was invoked but never defined (see the help page).