| Minorplanet | yes |
|---|---|
| Background |
|
| Mpc name | (523) Ada |
| Alt names | 1904 ND |
| Discoverer | Raymond Smith Dugan |
| Discovered | 27 January 1904 |
| Discovery site | Heidelberg |
| Epoch | 31 July 2016 (JD 2457600.5) |
| Eccentricity | 0.17432 |
| Semimajor | 2.9693 AU (444.20 Gm) |
| Perihelion | 2.4517 AU (366.77 Gm) |
| Aphelion | 3.4869 AU (521.63 Gm) |
| Period | 5.12 yr (1868.9 d) |
| Inclination | 4.2955° |
| Asc node | 260.837° |
| Arg peri | 189.461° |
| Mean anomaly | 31.6678° |
| Mean radius | 15.945 ± 0.75 km |
| Albedo | 0.2512 ± 0.026[1] |
| Rotation | 10.03 ± 0.01 hr[2] 10.03 h[1] |
| Abs magnitude | 9.9[1] |
| Mean motion | / day |
| Observation arc | 113.46 yr (41442 d) |
| Uncertainty | 0 |
523 Ada is a minor planet orbiting the Sun. It was discovered January 29, 1904, by American astronomer Raymond S. Dugan at Heidelberg, Germany and was named after his friend Ada Helme. CCD images collected during the fall of 2004 at Oakley Observatory in Terre Haute, Indiana, were used to generate a lightcurve for the object, showing a rotation period of 10.03 ± 0.01 hours.[2]
References
- ^ "JPL Small-Body Database Browser: 523 Ada (1904 ND)". Jet Propulsion Laboratory. Retrieved 8 May 2016.
- ^ Lecrone, Crystal; Mills, George; Ditteon, Richard (September 2005), "Lightcurves and periods for asteroids 463 Lola, 523 Ada, 544 Jetta, 642 Clara, 883 Matterania, 6475 Refugium", The Minor Planet Bulletin. 32 (3): 62–64, Bibcode:2005MPBu...32...62L