astro.wikisort.org - Asteroid

1147 Stavropolis (prov. designation: 1929 LF) is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 11 June 1929, by Georgian–Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula.[1] The S-type asteroid has a rotation period of 5.7 hours and measures approximately 14 kilometers (9 miles) in diameter. It was named after the Russian city of Stavropol.[2]

1147 Stavropolis

Shape model of Stavropolis from its lightcurve
Discovery[1]
Discovered by	G. Neujmin
Discovery site	Simeiz Obs.
Discovery date	11 June 1929
Designations
MPC designation	(1147) Stavropolis
Named after	Stavropol (Russian city)[2]
Alternative designations	1929 LF · 1946 KA
Minor planet category	main-belt[1][3] · (inner) background[4][5]
Orbital characteristics[3]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	87.80 yr (32,068 days)
Aphelion	2.7977 AU
Perihelion	1.7439 AU
Semi-major axis	2.2708 AU
Eccentricity	0.2320
Orbital period (sidereal)	3.42 yr (1,250 days)
Mean anomaly	271.25°
Mean motion	0° 17m 16.8s / day
Inclination	3.8806°
Longitude of ascending node	265.22°
Argument of perihelion	15.742°
Physical characteristics
Mean diameter	10.94±0.29 km[6] 13.430±0.197 km[7] 13.898±0.157 km[8] 13.92±0.84 km[9] 14.89 km (calculated)[10]
Synodic rotation period	5.66070±0.00003 h[11]
Pole ecliptic latitude	(78.0°, −50.0°) (λ1/β1)[5] (267.0°, −51.0°) (λ2/β2)[5]
Geometric albedo	0.145±0.019[9] 0.1460±0.0215[8] 0.155±0.036[7] 0.20 (assumed)[10] 0.406±0.058[6]
Spectral type	SMASS = S[3] Sw(Bus–DeMeo)[5]
Absolute magnitude (H)	11.40[6] · 11.5[1][3][10] · 12.00[9][8]

Orbit and classification

Stavropolis is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[4][5] It orbits the Sun in the inner asteroid belt at a distance of 1.7–2.8 AU once every 3 years and 5 months (1,250 days). Its orbit has an eccentricity of 0.23 and an inclination of 4° with respect to the ecliptic.[3] The body's observation arc begins at with its official discovery observation at Simeiz.[1]

Naming

This minor planet was named by the discover after the Russian city of Stavropol, located in northern Caucasus region. From 1936 to 1946, the city was named "Woroschilowsk". The naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 107).[2]

Physical characteristics

In the Bus–Binzel SMASS classification, Stavropolis is a common stony S-type asteroid,[3] while in the Bus–DeMeo classification, it is an Sw-subtype.[5]

Rotation period and poles

In September 2001, a rotational lightcurve of Stavropolis was obtained from photometric observations by Americans Larry Robinson and Brian Warner at the Sunflower (739) and Palmer Divide Observatory (716) in Kansas and Colorado, respectively. Lightcurve analysis gave a rotation period of 5.66±0.01 hours with a brightness variation of 0.42 magnitude (U=3).[12]

In October 2015, another lightcurve was obtained by French amateur astronomer Pierre Antonini. It gave a well-defined period of 5.66070±0.00003 hours with an amplitude of 0.32 magnitude (U=3).[11] A 2016-published lightcurve, using modeled photometric data from the Lowell Photometric Database (LPD), gave a concurring period of 5.66079±0.00001 hours, as well as two spin axes of (78.0°, −50.0°) and (267.0°, −51.0°) in ecliptic coordinates (λ, β).[13]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Stavropolis measures between 10.94 and 13.898 kilometers in diameter and its surface has an albedo between 0.146 and 0.406,[6][7][8] while the Japanese Akari satellite found a diameter of 13.92 kilometers with an albedo of 0.145.[9] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 14.89 kilometers based on an absolute magnitude of 11.5.[10]

References

External links

• Lightcurve Database Query (LCDB), at www.minorplanet.info
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
• 1147 Stavropolis at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 1147 Stavropolis at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (1147) Stavropolis

(1147) Stavropolis ist ein Asteroid des Hauptgürtels, der am 11. Juni 1929 vom russischen Astronomen Grigori Nikolajewitsch Neuimin in Simejis entdeckt wurde.

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- [en] 1147 Stavropolis

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[ru] (1147) Ставрополис

(1147) Ставрополис (лат. Stavropolis) — астероид из группы главного пояса, который принадлежит к спектральному классу S. Он был открыт 11 июня 1929 года в Симеизской обсерватории русским (советским) астрономом Григорием Неуйминым. Назван в честь города Ставрополь[1]. Свой полный оборот вокруг Солнца астероид совершает за 3,42 юлианских года.

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