170 Maria
Asteroid Maria passing near a cluster of galaxies as seen by a four inch telescope over a period of nearly two hours.
|
|
| Discovery | |
|---|---|
| Discovered by | J. Perrotin |
| Discovery date | January 10, 1877 |
| Designations | |
| Main belt (Maria) | |
| Orbital characteristics[1] | |
| Aphelion | 2.718 AU |
| Perihelion | 2.388 AU |
| 2.553 AU | |
| Eccentricity | 0.065 |
| 4.08 years | |
| Inclination | 14.40° |
| Physical characteristics | |
| Dimensions | 44.3 km |
| 13.14 hours | |
| Albedo | 0.158 |
|
Spectral type
|
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.
References
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