142 Polana


142 Polana

Infobox Planet | minorplanet = yes | width = 25em | bgcolour = #FFFFC0
name=142 Polana
discovery=yes
discovery_ref= [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
discoverer=Johann Palisa
discovered=January 28, 1875
alt_names=
mp_category=Main belt
orbit_ref= [ftp://ftp.lowell.edu/pub/elgb/astorb.html]
epoch=December 31, 2006 (JD 2454100.5)
semimajor=361.672 Gm (2.418 AU)
perihelion=312.439 Gm (2.089 AU)
aphelion=410.905 Gm (2.747 AU)
eccentricity=0.136
period=1373.038 d (3.76 a)
inclination=2.238°
asc_node=291.352°
arg_peri=292.205°
mean_anomaly=303.362°
avg_speed=19.07 km/s
physical_characteristics=yes
dimensions=55.3 km
mass=1.8e|17 kg
density=2.0 g/cm³
surface_grav=0.0155 m/s²
escape_velocity=0.0292 km/s
sidereal_day=? d
axial_tilt=?° | pole_ecliptic_lat=? | pole_ecliptic_lon=?
spectral_type=F
abs_magnitude=10.27
albedo=0.10
single_temperature=~179 K

142 Polana is a very dark Main belt asteroid. It is a primitive carbonaceous asteroid of type F (a subdivision of more common C-type).

It is a major member of the Polana family, which is a subgroup of the Nysa family.

It was discovered by Johann Palisa on January 28, 1875, and named after the city of Pola (now Pula, Croatia) where he made the discovery.


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Look at other dictionaries:

  • (142) polana — 142 Polana pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 361,772×106 km (2,418 ua) Aphélie …   Wikipédia en Français

  • 142 Polana — (142) Polana 142 Polana pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 361,772×106 km (2,418 ua) Aphélie …   Wikipédia en Français

  • (142) Polana — Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 361,772×106 km (2,418 ua) Aphélie 410,977×106 km (2,747 ua) Périhélie …   Wikipédia en Français

  • (142) Polana — Asteroid (142) Polona Eigenschaften des Orbits (Animation) Orbittyp Innerer Hauptgürtel Große Halbachse 2,418 AE …   Deutsch Wikipedia

  • (142) Polana — Polana Descubrimiento Descubridor Johann Palisa Fecha 28 de enero de 1875 Elementos orbitales …   Wikipedia Español

  • (142) Polana — Polana. Asteroide nº 142 descubierto el 28 de enero de 1875 desde Pola por Johann Palisa (1848 1925). Nombrado en honor de la ciudad desde donde fue descubierto, por aquel entonces sede del Observatorio Naval de Austria …   Enciclopedia Universal

  • Polana — may refer to the following places in Poland: *Polana in Gmina Węgliniec, Zgorzelec County in Lower Silesian Voivodeship (SW Poland) *Other places called Polana (listed in Polish Wikipedia) *142 Polana is an asteroid, and the namesake of the… …   Wikipedia

  • Polana — bezeichnet einen Asteroiden, siehe (142) Polana einen Ortsteil der Stadtgemeinde Murska Sobota, Slowenien. In der slowakischen Schreibweise Poľana bezeichnet das Wort ein Gebirgsmassiv in der Hohen Tatra einen Berg in der Niederen Tatra ein… …   Deutsch Wikipedia

  • 142 (number) — 142 is the natural number following 141 and preceding 143. ← 141 143 → 142 ← 140 141 …   Wikipedia

  • Polana (Asteroid) — Asteroid (142) Polona Eigenschaften des Orbits (Simulation) Orbittyp Hauptgürtel Große Halbachse 2,418  …   Deutsch Wikipedia


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