2537 Gilmore
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| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 4 September 1951 |
| Designations | |
| (2537) Gilmore | |
Named after | Alan C. Gilmore Pamela M. Kilmartin (New Zealand astronomers)[2] |
| 1951 RL · 1977 QP2 | |
| main-belt · Eunomia[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 65.47 yr (23,912 days) |
| Aphelion | 3.1130 AU |
| Perihelion | 2.1988 AU |
| 2.6559 AU | |
| Eccentricity | 0.1721 |
| 4.33 yr (1,581 days) | |
| 81.217° | |
| 0° 13m 39.72s / day | |
| Inclination | 12.937° |
| 334.99° | |
| 18.786° | |
| Physical characteristics | |
| Dimensions | 6.68 km (calculated)[3] 7.221±0.118 km[4][5] |
| 4.230±0.020 h[6] 4.2302±0.0399 h[7] | |
| 0.21 (assumed)[3] 0.309±0.055[4][5] | |
| S[3] | |
| 12.6[4] · 12.650±0.120 (R)[6] · 12.7[1] · 12.737±0.002 (R)[7] · 13.19[3] | |
2537 Gilmore, provisional designation 1951 RL, is a Eunomia asteroid from the middle region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 4 September 1951, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany.[8] It was named after New Zealand astronomer couple Alan C. Gilmore and Pamela M. Kilmartin
Gilmore is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun in the central main-belt at a distance of 2.2–3.1 AU once every 4 years and 4 months (1,581 days). Its orbit has an eccentricity of 0.17 and an inclination of 13° with respect to the ecliptic.[1] As no precoveries were taken, the body's observation arc begins with its official discovery observation at Heidelberg in 1951.[8]
Physical characteristics
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Gilmore measures 7.2 kilometers in diameter and its surface has an albedo of 0.309,[4] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 and calculates a diameter of 6.7 kilometers with an absolute magnitude of 13.19.[3]
Rotation period
From January to February 2014, two rotational lightcurves of Gilmore were obtained from photometric observations at the Palomar Transient Factory, California. The lightcurves gave a rotation period of 4.230 and 4.2302 hours with a brightness variation of 0.34 and 0.35 in magnitude, respectively (U=2/2).[6][7]
