170 Maria

170 Maria
Asteroid Maria passing near a cluster of galaxies
Asteroid Maria passing near a cluster of galaxies as seen by a four inch telescope over a period of nearly two hours.
Discovery
Discovered byJ. Perrotin
Discovery date10 January 1877
Designations
(170) Maria
Pronunciation/məˈriːə/ mə-REE-ə
A877 AA; 1958 AC
Main belt (Maria)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc116.69 yr (42622 d)
Aphelion2.7161 AU (406.32 Gm)
Perihelion2.3923 AU (357.88 Gm)
2.5542 AU (382.10 Gm)
Eccentricity0.063388
4.08 yr (1491.0 d)
88.062°
0° 14m 29.184s / day
Inclination14.377°
301.34°
159.21°
Earth MOID1.4114 AU (211.14 Gm)
Jupiter MOID2.39948 AU (358.957 Gm)
TJupiter3.392
Physical characteristics
Dimensions44.30±1.0 km
13.120 h (0.5467 d)
0.1579±0.007
S[2]
9.39

170 Maria is a Main belt asteroid that was discovered by French astronomer Henri Joseph Perrotin on January 10, 1877.[3] Its orbit was computed by Antonio Abetti, and the asteroid was named after his sister, Maria. This is the namesake of the Maria asteroid family; one of the first asteroid families to be identified by Japanese astronomer Kiyotsugu Hirayama in 1918.[4]

In the Tholen classification system, this is categorized as a stony S-type asteroid.[2] Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado during 2007 produced a light curve with a period of 13.120 ± 0.002 hours and a brightness range of 0.21 ± 0.02 in magnitude. Previous measurements from 2000 gave 13.14 and 5.510 hour estimates for the period.[5] Based upon its spectrum, it is classified as an S-type asteroid.

An occultation of a star by Maria was observed from Manitoba, Canada, on June 10, 1997.

  1. ^ Cite error: The named reference JPL was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference DeMeo2009 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference IAU_MPC was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Veeder1995 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Warner2007 was invoked but never defined (see the help page).