4897 Tomhamilton
| Discovery Perihelion | 2.6792 AU | |
|---|---|---|
| 3.0574 AU | ||
| Eccentricity | 0.1237 | |
| 5.35 yr (1,953 days) | ||
| 262.29° | ||
| 0° 11m 3.84s / day | ||
| Inclination | 11.067° | |
| 188.47° | ||
| 107.13° | ||
| Physical characteristics | ||
| Dimensions | 13.711±0.369 km[3] | |
| 0.215±0.065[3] | ||
| 12.0[1] | ||
4897 Tomhamilton, provisional designation 1987 QD6, is a stony
Eleanor Helin at Palomar Observatory, California. It was later named after American writer Thomas William Hamilton, an author of astronomy books and participant in the Apollo program.[2]
Classification and orbit
Tomhamilton orbits the Sun in the outer main-belt at a distance of 2.7–3.4 AU once every 5 years and 4 months (1,953 days). Its orbit has an eccentricity of 0.12 and an inclination of 11° with respect to the ecliptic.[1]
In August 1950, a first
Crimea–Nauchnij
.
On 11 January 2011, it was at
opposition (coinciding with Hamilton's 72nd birthday) at a distance of 2.476 AU. Given the moderately elliptical orbit, this asteroid can on rare occasions reach an apparent magnitude from Earth of about 10.9.[citation needed
]
Naming
This
M.P.C. 67215).[4]
Physical characteristics
Diameter and albedo
According to the survey carried out by NASA's
Lightcurve
As of 2017, no rotational
References
- ^ a b c d e "JPL Small-Body Database Browser: 4897 Tomhamilton (1987 QD6)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 4 August 2017.
- ^ a b c "4897 Tomhamilton (1987 QD6)". Minor Planet Center. Retrieved 26 August 2016.
- ^ . Retrieved 26 August 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 26 August 2016.
- ^ "LCDB Data for (4897) Tomhamilton". Asteroid Lightcurve Database (LCDB). Retrieved 4 August 2017.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 4897 Tomhamilton at AstDyS-2, Asteroids—Dynamic Site
- 4897 Tomhamilton at the JPL Small-Body Database
- Planetarian (Journal of the International Planetarium Society), March 2011, Vol. 40, No. 1, page 26
