| Discovery[1] | |
|---|---|
| Discovered by | E. F. Helin |
| Discovery site | Palomar Obs. |
| Discovery date | 14 December 1982 |
| Designations | |
| (3757) Anagolay | |
Named after | Anagolay (Philippine mythology)[2] |
| 1982 XB | |
| Amor · NEO · PHA[1][2] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 31.62 yr (11,551 days) |
| Aphelion | 2.6522AU |
| Perihelion | 1.0175 AU |
| 1.8349 AU | |
| Eccentricity | 0.4455 |
| 2.49yr (908 days) | |
| 342.62° | |
| 0° 23m 47.4s / day | |
| Inclination | 3.8679° |
| 74.969° | |
| 17.149° | |
| Earth MOID | 0.0386 AU · 15LD |
| Physical characteristics | |
| Dimensions | 0.39 km[3][4] 0.5 km[1] |
| 9.0046±0.0013h[5] 9.012 h[6][7] | |
| 0.18[1] 0.26(derived)[3] 0.34[4] | |
| Tholen =S[1] B–V =0.859±0.012[1] U–B =0.522±0.009[1] | |
| 18.85[4] · 18.95[1] · 19.12±0.06[3][5][8] | |
3757 Anagolay, provisional designation1982 XB, is a highly eccentricasteroid, classified as apotentially hazardous asteroid and anear-Earth object of theAmor group, approximately half a kilometer in diameter. It was discovered on 14 December 1982, by American astronomerEleanor Helin at thePalomar Observatory in California, United States. The asteroid was named afterAnagolay fromPhilippine mythology.[2]
Anagolay orbits the Sun in theinner main-belt at a distance of 1.0–2.7 AU once every 2 years and 6 months (908 days). Its orbit has aneccentricity of 0.45 and aninclination of 4° with respect to theecliptic.[1]
It is apotentially hazardous asteroid because itsEarthminimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. Its Earth-MOID is 0.0386 AU (5,770,000 km) which corresponds to 15lunar distances. Its orbit is well-determined for the next several hundred years.[1] The body'sobservation arc begins in 1986, as noprecoveries and no identifications prior to its discovery were made.[2]
In theTholen classification,Anagolay is a silicaceousS-type asteroid.[1]
Based on two rotationallightcurves obtained in the 1980s,Anagolay has arotation period of 9.012 hours and a brightness variation of 0.20 and 0.21 inmagnitude, respectively (U=n.a.).[6][7] A third lightcurve, also from the 1980s, gave an alternative period of9.0046±0.0013 hours with an amplitude of 0.14 (U=2-).[5] The body'salbedo lies between 0.18 and 0.34,[1][4] with theCollaborative Asteroid Lightcurve Link (CALL) deriving an intermediate albedo of 0.26. CALL also assumes a diameter of 390 meters.[3]
Thisminor planet was named after Anagolay, the goddess of the lost things worshipped by pre-HispanicTagalogs. InPhilippine mythology, Anagolay is the daughter of the hermaphroditic agricultural deity Lakampati (also goddess Ikapati).[9]
The name, suggested by Filipino student Mohammad Abqary Alon, was selected among 85 other suggestions in a contest held by theSpace Generation Advisory Council's "Name-An-Asteroid" campaign.[2][10] The official naming citation was published by theMinor Planet Center on 9 September 2014 (M.P.C. 89832).[11]
