1043 Beate
Stony asteroid
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1043 Beate, provisional designation 1925 HB, is a stony asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 22 April 1925.[13] Any reference of its name to a person is unknown.[3]
| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 22 April 1925 |
| Designations | |
| (1043) Beate | |
| Pronunciation | German: [beːˈʔaːtə][2] |
Named after | unknown[3] |
| 1925 HB | |
| main-belt · (outer)[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.20 yr (33,677 days) |
| Aphelion | 3.2214 AU |
| Perihelion | 2.9717 AU |
| 3.0966 AU | |
| Eccentricity | 0.0403 |
| 5.45 yr (1,990 days) | |
| 255.00° | |
| 0° 10m 51.24s / day | |
| Inclination | 8.9257° |
| 159.31° | |
| 154.71° | |
| Physical characteristics | |
| Dimensions | 31.60±1.3 km[5] 31.85 km (derived)[4] 31.986±0.075 km[6] 33.97±0.43 km[7] 34.08±1.11 km[8] 40.952±0.967 km[9] |
| 14.6±0.1 h[10] 44.3±0.1 h[11][a] | |
| 0.1283±0.0193[9] 0.188±0.006[7] 0.209±0.032[6] 0.2147±0.019[5] 0.241±0.038[8] 0.2517 (derived)[4] | |
| Tholen = S[1] · S[4] B–V = 0.900[1] U–B = 0.455[1] | |
| 9.50[8] · 9.6[1][4] · 9.79[5][7][9] · 9.90±0.21[12] | |
Orbit and classification
Beate orbits the Sun in the outer main-belt at a distance of 3.0–3.2 AU once every 5 years and 5 months (1,990 days). Its orbit has an eccentricity of 0.04 and an inclination of 9° with respect to the ecliptic.[1] The asteroid's observation arc begins at the discovering observatory in May 1925, 3 weeks after its official discovery observation.[13]
Physical characteristics
In the Tholen classification, Beate is a common S-type asteroid.[1]
Rotation period
In April 2006, a rotational lightcurve of Beate was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory (716) in Colorado. It gave a longer-than average rotation period of 44.3±0.1 hours with a brightness variation of 0.47 magnitude (U=2+).[11][a]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Beate measures between 31.6 and 41.0 kilometers in diameter and its surface has an albedo between 0.128 and 0.241.[5][6][7][8][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2517 and a diameter of 31.85 kilometers with an absolute magnitude of 9.6.[4]
Naming
For this minor planet, any reference of its name to a person or occurrence is unknown.[3]
Unknown meaning
Among the many thousands of named minor planets, Beate is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between 164 Eva and 1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.[14]
Notes
- Lightcurve plot of 1043 Beate, Palmer Divide Observatory, Brian D. Warner (2006)
