375 Ursula

375 Ursula
Ursula imaged at amag 11.4 near the star TYC 581-36-1 (magnitude 11.9). The two galaxies are about magnitude 15.
Discovery [1]
Discovered byA. Charlois
Discovery siteNice Obs.
Discovery date18 September 1893
Designations
(375) Ursula
Pronunciation/ˈɜːrsjuːlə/
Named after
unknown[2]
1893 AL
main-belt · (outer) [3]
Ursula [4]
AdjectivesUrsulian /ɜːrˈsjuːliən/
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc124.06 yr (45,314 days)
Aphelion3.4544 AU
Perihelion2.7928 AU
3.1236 AU
Eccentricity0.1059
5.52 yr (2,016 days)
189.03°
0° 10m 42.6s / day
Inclination15.943°
336.57°
342.15°
Physical characteristics
Dimensions189.45±54.76 km[5]
191.65±4.01 km[6]
193.63±2.52 km[7]
215.67±54.80 km[8]
216±10 km[9]
216.10 km (taken)[3]
Mass(8.45±5.26)×1018 kg[6]
Mean density
2.29±1.43 g/cm3[6]
16.78±0.01 h[3]
16.83 h[10][11]
16.899±0.001 h[12]
16.900±0.003 h[13]
0.04±0.03[8]
0.042±0.027[5]
0.049±0.001[7]
0.0494 (derived)[3]
Tholen = C [1]
SMASS = Xc [1]
B–V = 0.683[1]
U–B = 0.341[1]
7.21[3] · 7.21±0.02[13][14] · 7.45[8] · 7.47[1][5][7] · 7.58±0.31[15]

375 Ursula, provisional designation 1893 AL, is a dark asteroid and parent body of the Ursula family from the outer regions of the asteroid belt. It is one of the largest asteroids with a diameter of approximately 200 kilometers. It was discovered on 18 September 1893, by French astronomer Auguste Charlois at Nice Observatory in France.[16] The referent of the asteroids's name is unknown.[2]

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  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. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Carry2012 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Millis-1984 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Schober-1983e was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Schober-1987 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Pilcher-2017f was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference Harris-1999a was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).