| Discovery[1] | |
|---|---|
| Discovered by | C. Shoemaker E. M. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 9 May 1988 |
| Designations | |
| (4899) Candace | |
Named after | Candace P. Kohl[2][3] (American chemist) |
| 1988 JU · 1952 QL1 1977 EZ1 · 1977 FK1 | |
| main-belt · (inner) Phocaea[4] · background[5] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 40.31 yr (14,724 days) |
| Aphelion | 2.8121AU |
| Perihelion | 1.9324 AU |
| 2.3722 AU | |
| Eccentricity | 0.1854 |
| 3.65yr (1,335 days) | |
| 331.34° | |
| 0° 16m 11.28s / day | |
| Inclination | 22.564° |
| 190.20° | |
| 74.203° | |
| Physical characteristics | |
| Dimensions | 6.205±0.030 km[6] 6.526±0.107 km[7] 7.63 km(calculated)[4] 7.80±1.80 km[8] 8.56±0.66 km[9] |
| 40.7h[a] | |
| 0.087±0.014[9] 0.23±0.09[8] 0.293±0.045[7] 0.4213±0.0617[6] | |
| S(assumed)[4] | |
| 12.6[6] · 12.8[4] · 12.90[1][8] · 13.36±0.51[10] · 13.60[9] | |
4899 Candace, provisional designation1988 JU, is a backgroundasteroid from the inner regions of theasteroid belt, approximately 7 kilometers in diameter. It was discovered on 9 May 1988, by astronomer coupleCarolyn andEugene Shoemaker at thePalomar Observatory in California, United States. The asteroid was named after American chemistCandace Kohl.[2][3]
Candace is a non-family asteroid from the main belt'sbackground population based on thehierarchical clustering method.[5] It has also been considered a member of thePhocaea family (701).[4] It orbits the Sun in theinner main-belt at a distance of 1.9–2.8 AU once every 3 years and 8 months (1,335 days;semi-major axis of 2.37 AU). Its orbit has aneccentricity of 0.19 and aninclination of 23° with respect to theecliptic.[1]
The body'sobservation arc begins with its first observation as1952 QL1 at Palomar in August 1952, or 36 years prior to its official discovery observation.[2]
Candace is an assumed stonyS-type asteroid.[4]
In April 2010, a rotationallightcurve ofCandace was obtained from photometric observations byPetr Pravec atOndřejov Observatory. Lightcurve analysis gave arotation period of 40.7 hours with a brightness amplitude of 0.15magnitude (U=2).[a]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Candace measures between 6.205 and 8.56 kilometers in diameter and its surface has analbedo between 0.087 and 0.4213.[6][7][8][9]
TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for stony members of the Phocaea family of 0.23 and calculates a diameter of 7.63 kilometers based on anabsolute magnitude of 12.8.[4]
Thisminor planet was named after American chemist Candace P. Kohl, who has been investigating ancient solar activity through analysis of nuclides in lunar rocks. She has also contributed in the development of dating techniques of cosmic-ray-produced nuclides in Earth surface materials. She is known for her popular astronomy lectures. Citation provided by Kunihiko Nishiizumi(also see4898 Nishiizumi) at the request of the discoverers.[2][3][11] The approved naming citation was published by theMinor Planet Center on 12 July 1995 (M.P.C. 25443).[12]
