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3360 Syrinx

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Title: 3360 Syrinx  
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Subject: Alinda asteroids, R. Scott Dunbar, Eleanor F. Helin, 3361 Orpheus, Minor planet
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3360 Syrinx

(3360) Syrinx
Discovered by Eleanor F. Helin
R. Scott Dunbar
Discovery date November 4, 1981
Named after
1981 VA
Apollo, Mars crosser, alinda family
Orbital characteristics
Epoch November 26, 2005 (JD 2453700.5)
Aphelion 643.603 Gm (4.302 AU)
Perihelion 94.745 Gm (0.633 AU)
369.174 Gm (2.468 AU)
Eccentricity 0.743
1415.980 d (3.88 a)
Average orbital speed
15.981 km/s
Inclination 21.426°
Physical characteristics
Dimensions 1.8 km
Mass ~8.4×1012 kg
Mean density
2.0? g/cm³
~0.0006 m/s²
~0.0011 km/s
? d
Albedo 0.17
Temperature ~174 K
Spectral type

(3360) Syrinx (originally designated 1981 VA) is an Apollo and Mars crosser asteroid discovered in 1981. It approaches Earth to within 40 Gm three times in the 21st century: 33 Gm in 2039, 40 Gm in 2070, and 24 Gm in 2085.

On 2012-Sep-20 it will pass 0.4192 AU (62,710,000 km; 38,970,000 mi) from the Earth[1] at apparent magnitude 17.0.[2] By opposition on 23 Nov 2012, it will have brightened to magnitude 16.0.[2]

For a time, it was the lowest numbered asteroid that had not been named. Since November 2006, this distinction has been held by (3708) 1974 FV1.

See also


  1. ^ "JPL Close-Approach Data: 3360 Syrinx (1981 VA)" (2009-01-22 last obs). Retrieved 2012-03-24. 
  2. ^ a b "NEODys (3360) Syrinx Ephemerides for 20 September 2012". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-03-25. 


  • Discovery · Orbit diagram · Orbital elements · Physical parameters
  • JPL Horizons; telnet version is more comprehensive

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