228 Agathe
In this article, we are going to explore the topic of 228 Agathe and analyze its impact on different aspects of society. 228 Agathe is a topic that has generated great interest in recent times, and its relevance transcends borders and cultures. Throughout history, 228 Agathe has played a fundamental role in the evolution of society, and its influence remains significant today. Through detailed analysis, we will examine the various facets of 228 Agathe and its importance in areas such as politics, economics, culture, and everyday life. Additionally, we will explore the possible future implications of 228 Agathe and how it may impact the way we live and interact in the modern world.
 Orbital diagram | |
| Discovery [1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Vienna Observatory |
| Discovery date | 19 August 1882 |
| Designations | |
| (228) Agathe | |
Named after | daughter of astronomer Theodor v. Oppolzer [2] |
| A882 QA | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 13 September 2023 (JD 2453300.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.80 yr |
| Aphelion | 2.73 AU (408 million km) |
| Perihelion | 1.67 AU (250 million km) |
| 2.20 AU (329 million km) | |
| Eccentricity | 0.24227 |
| 3.27 yr (1193.1 d) | |
| 63.67° | |
| 0° 18m 6.408s / day | |
| Inclination | 2.5359° |
| 313.25° | |
| 19.177° | |
| Earth MOID | 0.657 AU (98.3 million km) |
| Mars MOID | 0.29 AU (43 million km) |
| Jupiter MOID | 2.63 AU (393 million km) |
| TJupiter | 3.624 |
| Physical characteristics | |
| Dimensions | 9.30±0.8 km |
| 6.484 h (0.2702 d) | |
| 0.2082±0.043 | |
| B–V = 0.918 U–B = 0.596 S (Tholen), S (SMASS) | |
| 12.32 | |
228 Agathe is a stony main belt asteroid, about 9 kilometers in diameter. It was discovered by Johann Palisa on 19 August 1882 at Vienna Observatory, Austria. Photometric observations during 2003 showed a rotation period of 6.48 ± 0.01 hours with a brightness variation of 0.27 ± 0.03 in magnitude. An earlier study yielded results that are consistent with these estimates.[3] Agathe is the lowest numbered asteroid to have an Earth-MOID as low as 0.657 AU (98.3 million km).[1] On 23 August 2029 the asteroid will be 0.659 AU (98.6 million km) from Earth.
| Date and time of closest approach |
Earth distance (AU) |
Sun distance (AU) |
Velocity relative to Earth (km/s) |
Velocity relative to Sun (km/s) |
Uncertainty region (3-sigma) |
Solar elongation |
|---|---|---|---|---|---|---|
| 23 August 2029 ≈07:22 | 0.6597 AU (98.69 million km; 61.32 million mi; 256.7 LD) | 1.67 AU (250 million km; 155 million mi) | 3.9 | 25.7 | ± 1.4 km | 177.9° |
Agathe was named after the youngest daughter of Austrian astronomer Theodor von Oppolzer (1841–1886), professor of astronomy in Vienna.[2]
References
- ^ a b c "JPL Small-Body Database Browser: 228 Agathe" (2023-08-05 last obs.). Jet Propulsion Laboratory. Retrieved 20 September 2023.
- ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (228) Agathe. Springer Berlin Heidelberg. p. 35. doi:10.1007/978-3-540-29925-7_229. ISBN 978-3-540-29925-7.
- ^ Cooney, Walter R. Jr. (March 2005), "Lightcurve results for minor planets 228 Agathe, 297 Caecilia, 744 Aguntina 1062 Ljuba, 1605 Milankovitch, and 3125 Hay", The Minor Planet Bulletin, 32 (1): 15–16, Bibcode:2005MPBu...32...15C.
- ^ "Horizons Batch for 228 Agathe on 2029-Aug-23" (Closest Earth approach occurs when deldot flips from negative to positive). JPL Horizons. Retrieved 20 September 2023.
External links
- Dictionary of Minor Planet Names, Google books
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 228 Agathe at AstDyS-2, Asteroids—Dynamic Site
- 228 Agathe at the JPL Small-Body Database
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