_Safara.png) Modelled shape ofSafara from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 18 November 1935 |
| Designations | |
| (1364) Safara | |
Named after | André Safar[2] (discoverer's acquaintance) |
| 1935 VB · 1932 EK | |
| main-belt · (outer) · Eos[3][4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.64 yr (31,279 days) |
| Aphelion | 3.2114AU |
| Perihelion | 2.8133 AU |
| 3.0124 AU | |
| Eccentricity | 0.0661 |
| 5.23yr (1,910 days) | |
| 8.7502° | |
| 0° 11m 18.6s / day | |
| Inclination | 11.488° |
| 63.986° | |
| 220.38° | |
| Physical characteristics | |
| Dimensions | 21.197±0.201 km[5] 21.508±0.266 km[6] 24.35±0.47 km[7] 25.73 km(calculated)[3] 32.63±0.46 km[8] |
| 7.14908±0.0004h[9] 7.25±0.05 h[10][a] | |
| 0.087±0.012[8] 0.14(assumed)[3] 0.173±0.007[7] 0.2231±0.0149[6] | |
| L[11] · S(assumed)[3] | |
| 10.60[6][7] · 10.64±0.19[11] · 10.70[1][3][8] | |
1364 Safara, incorrectly designated1935 VB, is an Eoanasteroid from the outer regions of theasteroid belt, approximately 25 kilometers in diameter. It was discovered on 18 November 1935, by French astronomerLouis Boyer at theAlgiers Observatory in Algeria, North Africa.[12] The asteroid should have been designated1935 WB, as theletter "V" only covers discoveries made during 1–15 November.[1] It was named after André Safar, presumably an acquaintance of the discoverer from Algiers.[2]
Safara is a member theEos family (606),[4] the largestasteroid family of theouter main belt consisting of nearly 10,000 asteroids.[13]: 23 It orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,910 days;semi-major axis of 3.01 AU). Its orbit has aneccentricity of 0.07 and aninclination of 11° with respect to theecliptic.[1]
The asteroid was first identified as1932 EK atHeidelberg Observatory in March 1932. The body'sobservation arc begins at Algiers with its official discovery observation in November 1935.[12]
TheCollaborative Asteroid Lightcurve Link (CALL) assumesSafara to be a stonyS-type asteroid,[3] while it has also characterized as a rareL-type asteroid byPan-STARRS photometric survey.[11] The overallspectral type of the Eos family is that of aK-type.[13]: 23
In February 2002, a rotationallightcurve ofSafara was obtained from photometric observations by American astronomerBrian Warner at his Palmer Divide Observatory (716) in Colorado. Lightcurve analysis gave arotation period of 7.25 hours with a brightness amplitude of 0.36magnitude (U=3-).[10][a]
In 2018, the body's lightcurve has also been modeled in a focused study of Eoan asteroids. Modeling gave a period of 7.14908 hours and twospin axis inecliptic coordinates (λ, β) of (197.0°, 32.0°) and (10.0°, 12.0°).[9]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Safara measures between 21.197 and 32.63 kilometers in diameter and its surface has analbedo between 0.087 and 0.2231.[5][6][7][8]
CALL assumes an albedo of 0.14 – derived from221 Eos, the family's largest member and namesake – and calculates a diameter of 25.73 kilometers based on anabsolute magnitude of 10.7.[3]
Thisminor planet was named after André Safar, presumably an acquaintance of the discoverer from Algiers. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 124).[2]
