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2241 Alcathous information


2241 Alcathous
Discovery [1]
Discovered byC. Kowal
Discovery sitePalomar Obs.
Discovery date22 November 1979
Designations
MPC designation
(2241) Alcathous
Pronunciation/ælˈkæθəs/[2]
Named after
Alcathous [3]
(Greek mythology)
Alternative designations
1979 WM · 1950 NC
1968 WF
Minor planet category
Jupiter trojan [1][4][5]
Trojan [6][7] · background [7]
AdjectivesAlcathoian
Orbital characteristics [4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc67.93 yr (24,811 d)
Aphelion5.5311 AU
Perihelion4.8328 AU
Semi-major axis
5.1820 AU
Eccentricity0.0674
Orbital period (sidereal)
11.80 yr (4,309 d)
Mean anomaly
313.95°
Mean motion
0° 5m 0.96s / day
Inclination16.627°
Longitude of ascending node
267.99°
Argument of perihelion
291.80°
Jupiter MOID0.1444 AU
TJupiter2.9120
Physical characteristics
Mean diameter
113.68±1.72 km[8]
114.63±5.8 km[9]
118.87±2.27 km[10]
Synodic rotation period
7.687±0.005 h[11]
7.689±0.001 h[12][a]
7.690±0.001 h[13]
7.691±0.001 h[14][a]
7.695±0.002 h[15][a]
7.698±0.002 h[16][a]
9.41 h (poor)[17]
Geometric albedo
0.044±0.002[10]
0.0471±0.005[9]
0.048±0.012[8]
Spectral type
D (Tholen)[4][5]
D0 (Barucci)[18]
D (Tedesco)[18]
U–B = 0.226[4]
B–V = 0.660±0.050[19]
V–R = 0.490±0.050[19]
V–I = 0.940±0.024[5]
Absolute magnitude (H)
8.61±0.25[20]
8.64[1][4][5][8][9][10]

2241 Alcathous /ælˈkæθəs/ is a large Jupiter trojan from the Trojan camp, approximately 115 kilometers (71 miles) in diameter. It was discovered on 22 November 1979, by American astronomer Charles Kowal at the Palomar Observatory in southern California, United States.[1] The dark D-type asteroid belongs to the 20 largest Jupiter trojans and has a rotation period of 7.7 hours.[5] It was named after Alcathous from Greek mythology.[3]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference MPC-Jupiter-Trojans was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Grav-2012 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Mottola-2011 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Stephens-2015f was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference French-2011b was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Stephens-2016k was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Stephens-2014c was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Stephens-2017d was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference De-Sanctis-1994 was invoked but never defined (see the help page).
  18. ^ a b Cite error: The named reference Ferret was invoked but never defined (see the help page).
  19. ^ a b Cite error: The named reference Chatelain-2016 was invoked but never defined (see the help page).
  20. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).


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2241 Alcathous

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2241 Alcathous /ælˈkæθoʊəs/ is a large Jupiter trojan from the Trojan camp, approximately 115 kilometers (71 miles) in diameter. It was discovered on 22...

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Alcathous

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Turnus. Alcathous, another, otherwise unknown personage of this name is mentioned by Virgil. Ancient Greece portal Myths portal 2241 Alcathous Apollodorus...

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List of Solar System objects by size

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last obs). Retrieved 2 May 2019. "JPL Small-Body Database Browser: 2241 Alcathous (1979 WM)" (2018-06-17 last obs). Retrieved 2 May 2019. "JPL Small-Body...

Word Count : 10712

3548 Eurybates

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1937

5511 Cloanthus

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 781

911 Agamemnon

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1247

9712 Nauplius

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 813

11429 Demodokus

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 754

588 Achilles

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1345

5436 Eumelos

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1157

1647 Menelaus

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1509

5012 Eurymedon

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 958

2148 Epeios

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 729

18493 Demoleon

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 763

37519 Amphios

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 991

13062 Podarkes

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 949

7152 Euneus

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 951

5254 Ulysses

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 1106

6002 Eetion

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 732

4707 Khryses

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 842

13184 Augeias

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list 1143 Odysseus 7.93 114.624 125.64 130.81 L4 10.11 0.860 1930 list 2241 Alcathous 8.64 113.682 114.63 118.87 L5 7.69 0.940 1979 list 659 Nestor 8.99 112...

Word Count : 789

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