| Discovery [1] | |
|---|---|
| Discovered by | J. Wagner |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 8 January 1984 |
| Designations | |
| (3045) Alois | |
Named after | Alois T. Stuczynski (discoverer's grandfather) [2] |
| 1984 AW ·1954 QD 1965 QD ·1971 SB3 1982 SY3 | |
| main-belt ·(outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.15 yr (24,160 days) |
| Aphelion | 3.4822 AU |
| Perihelion | 2.7782 AU |
| 3.1302 AU | |
| Eccentricity | 0.1124 |
| 5.54 yr (2,023 days) | |
| 120.77° | |
| 0° 10m 40.8s / day | |
| Inclination | 3.3434° |
| 36.206° | |
| 330.87° | |
| Physical characteristics | |
| Dimensions | 23.51±1.58 km [4] 26.64 km (calculated) [3] 27.49±0.20 km [5] |
| 3.7533±0.0058 h [6] | |
| 0.057 (assumed) [3] 0.059±0.009 [5] 0.095±0.015 [4] | |
| X [7] · C [3] | |
| 11.40 [4] ·11.412±0.001(R) [6] ·11.50 [5] ·11.6 [1] [3] ·11.91±0.17 [7] | |
3045 Alois, provisional designation 1984 AW, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 26 kilometers in diameter. The asteroid was discovered on 8 January 1984, by American astronomer Joe Wagner at Lowell's Anderson Mesa Station in Flagstaff, Arizona, United States. [8] It was named after the discoverer's grandfather Alois Stuczynski. [2]
Alois orbits the Sun in the outer main-belt at a distance of 2.8–3.5 AU once every 5 years and 6 months (2,023 days). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic. [1] A first precovery was taken at Palomar Observatory in 1951, extending the body's observation arc by 33 years prior to its official discovery observation at Anderson Mesa. [8]
The C-type body is also classified as an X-type asteroid by Pan-STARRS ' large-scale survey. [7]
In November 2010, a rotational lightcurve of Alois was obtained from photometric observations made at the Palomar Transient Factory, California. It gave a rotation period of 3.7533±0.0058 hours with a brightness amplitude of 0.18 in magnitude ( U=2 ). [6]
According to the space-based surveys by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer, Alois measures 23.5 and 27.5 kilometers in diameter, respectively, and has a corresponding albedo of 0.095 and 0.059. [4] [5] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 26.6 kilometers. [3]
This minor planet was named by the discoverer in memory of his grandfather, Alois T. Stuczynski. [2] The official naming citation was published by the Minor Planet Center on 7 March 1985 ( M.P.C. 9479). [9]
