1043 Beate

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]

1043 Beate

Discovery[1]
Discovered by	K. Reinmuth
Discovery site	Heidelberg Obs.
Discovery date	22 April 1925
Designations
MPC designation	(1043) Beate
Pronunciation	German: [beːˈʔaːtə][2]
Named after	unknown[3]
Alternative designations	1925 HB
Minor planet category	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
Semi-major axis	3.0966 AU
Eccentricity	0.0403
Orbital period (sidereal)	5.45 yr (1,990 days)
Mean anomaly	255.00°
Mean motion	0° 10m 51.24s / day
Inclination	8.9257°
Longitude of ascending node	159.31°
Argument of perihelion	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]
Synodic rotation period	14.6±0.1 h[10] 44.3±0.1 h[11][a]
Geometric albedo	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]
Spectral type	Tholen = S[1] · S[4] B–V = 0.900[1] U–B = 0.455[1]
Absolute magnitude (H)	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

1. Lightcurve plot of 1043 Beate, Palmer Divide Observatory, Brian D. Warner (2006)