Astronomy:816 Juliana
From HandWiki
.png) A three-dimensional model of 816 Juliana based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg Observatory |
| Discovery date | 8 February 1916 |
| Designations | |
| (816) Juliana | |
| 1916 YV | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 100.18 yr (36592 d) |
| |{{{apsis}}}|helion}} | 3.3307 astronomical unit|AU (498.27 Gm) |
| |{{{apsis}}}|helion}} | 2.6721 AU (399.74 Gm) |
| 3.0014 AU (449.00 Gm) | |
| Eccentricity | 0.10971 |
| Orbital period | 5.20 yr (1899.2 d) |
| Mean anomaly | 104.02° |
| Mean motion | 0° 11m 22.38s / day |
| Inclination | 14.330° |
| Longitude of ascending node | 127.863° |
| 21.017° | |
| Physical characteristics | |
| Mean radius | 29.925±0.6 km |
| Rotation period | 10.58 h (0.441 d) |
| Geometric albedo | 0.0311±0.001 |
| Absolute magnitude (H) | 10.4 |
816 Juliana is a minor planet orbiting the Sun. It measures 59.85k in diameter. It was discovered on 8 February 1916 by Max Wolf at the Landessternwarte Heidelberg-Königstuhl Observatory in Heidelberg, Germany .
Wolf probably chose the name to honour Princess Juliana (later Queen Juliana of the Netherlands); he had previously named 392 Wilhelmina after her mother.[2]
References
- ↑ "816 Juliana (1916 YV)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=816;cad=1.
- ↑ Lutz D. Schmadel (2011). Dictionary of Minor Planet Names. Addendum to Fifth Edition: 2006–2008. Springer. ISBN 978-3-642-01966-1. https://books.google.com/books?id=uwGbkbhMVyAC.
External links
- 816 Juliana at AstDyS-2, Asteroids—Dynamic Site
- 816 Juliana at the JPL Small-Body Database
 |  |
