| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 8 January 1937 |
| Designations | |
| (1411) Brauna | |
Named after | Margret Braun[2] (wife ofHeinrich Vogt) |
| 1937 AM · 1929 RT | |
| main-belt · (outer) Eos[3] · background[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.32 yr (29,337 days) |
| Aphelion | 3.1727AU |
| Perihelion | 2.8325 AU |
| 3.0026 AU | |
| Eccentricity | 0.0567 |
| 5.20yr (1,900 days) | |
| 286.00° | |
| 0° 11m 21.84s / day | |
| Inclination | 8.0393° |
| 284.60° | |
| 94.642° | |
| Physical characteristics | |
| Dimensions | 28.272±0.173 km[5] 30.341±0.404 km[6] 31.17 km(derived)[3] 33.54±0.78 km[7] |
| 4.90±0.01h[8] | |
| 0.070±0.004[7] 0.0793(derived)[3] 0.0844±0.0179[6] 0.096±0.008[5] | |
| S(assumed)[3] | |
| 10.90[3][6][7] · 11.0[1] · 11.12±0.54[9] | |
1411 Brauna, provisional designation1937 AM, is a stony Eoanasteroid from the outer regions of theasteroid belt, approximately 31 kilometers in diameter. It was discovered on 8 January 1937, by German astronomerKarl Reinmuth at theHeidelberg-Königstuhl State Observatory in Germany.[10] The asteroid was named after Margret Braun, wife of Heidelberg astronomerHeinrich Vogt.[2]
Brauna is a member theEos family (606),[3] one of the largestasteroid family in the main belt consisting of nearly 10,000 asteroids. The family's parent body is the asteroid221 Eos.Brauna is, however, a non-family asteroid of the main belt'sbackground population when applying theHierarchical Clustering Method to itsproper orbital elements.[4]
It orbits the Sun in theouter main-belt at a distance of 2.8–3.2 AU once every 5 years and 2 months (1,900 days). Its orbit has aneccentricity of 0.06 and aninclination of 8° with respect to theecliptic.[1]
Brauna was first identified as1929 RT atSimeiz Observatory in September 1929. The body'sobservation arc begins at the discovering Heidelberg Observatory, one month after its official discovery observation.[10]
Brauna is an assumedS-type asteroid.[3]
In September 2007,photometric observations at theOakley Observatory in Indiana, United States, were used to build alightcurve forBrauna. The asteroid displayed a well-definedrotation period of 4.90 ± 0.01 hours and a brightness variation of 0.15 ± 0.05 inmagnitude (U=3).[8]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Brauna measures between 28.272 and 33.54 kilometers in diameter and its surface has analbedo between 0.070 and 0.096.[5][6][7]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0793 and a diameter of 31.17 kilometers based on anabsolute magnitude of 10.9.[3]
Thisminor planet was named after Margret Braun (died 1991), wife of the Heidelberg astronomerHeinrich Vogt (1890–1968), after whom1439 Vogtia was named. The previously numbered asteroid1410 Margret was also named after Margret Braun. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 128).[2]
