Global Information3360 Syrinx information
| Discovery | |
|---|---|
| Discovered by | Eleanor F. Helin R. Scott Dunbar |
| Discovery date | 4 November 1981 |
| Designations | |
MPC designation | (3360) Syrinx |
| Pronunciation | /ˈsɪrɪŋks/[1] |
Named after | Syrinx |
Alternative designations | 1981 VA |
Minor planet category |
|
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 12556 days (34.38 yr) |
| Aphelion | 4.30603 AU (644.173 Gm) |
| Perihelion | 0.62791 AU (93.934 Gm) |
Semi-major axis | 2.46697 AU (369.053 Gm) |
| Eccentricity | 0.74547 |
Orbital period (sidereal) | 3.87 yr (1415.3 d) |
Mean anomaly | 315.35° |
Mean motion | 0° 15m 15.732s / day |
| Inclination | 21.154° |
Longitude of ascending node | 242.561° |
Argument of perihelion | 63.457° |
| Earth MOID | 0.107877 AU (16.1382 Gm) |
| Physical characteristics | |
| Dimensions | 1.8 km |
Mean radius | 0.9 km |
Geometric albedo | 0.17 |
Absolute magnitude (H) | 15.9 |
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 passed 0.4192 AU (62,710,000 km; 38,970,000 mi) from the Earth[2] at apparent magnitude 17.0.[3] In opposition on 23 November 2012, it brightened to magnitude 16.0.[3]
It is a member of the Alinda group of asteroids with a 3:1 resonance with Jupiter that has excited the eccentricity of the orbit over the eons.[4] As an Alinda asteroid it makes approaches to Jupiter, Earth, and Venus.[2]
For a time, it was the lowest numbered asteroid that had not been named. In November 2006, this distinction passed to 3708 Socus, and in May 2021 to (4596) 1981 QB.
- ^ "syrinx". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
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