| 词条 | 816 Juliana |
| 释义 |
| minorplanet= yes | image = 816Juliana (Lightcurve Inversion).png | image_size = 265 | caption= A three-dimensional model of 816 Juliana based on its light curve | background= #D6D6D6 | name= 816 Juliana | mpc_name= (816) Juliana | alt_names= 1916 YV | discoverer= Max Wolf | discovered= 8 February 1916 | discovery_site= Heidelberg Observatory | epoch= 31 July 2016 (JD 2457600.5) | eccentricity= 0.10971 | semimajor= {{Convert|3.0014|AU|Gm|abbr=on}} | perihelion= {{Convert|2.6721|AU|Gm|abbr=on}} | aphelion= {{Convert|3.3307|AU|Gm|abbr=on|lk=on}} | period= 5.20 yr (1899.2 d) | inclination= 14.330° | asc_node= 127.863° | arg_peri= 21.017° | mean_anomaly= 104.02° | mean_motion= {{Deg2DMS|0.18955|sup=ms}} / day | orbit_ref= [1] | observation_arc= 100.18 yr (36592 d) | uncertainty= 0 | abs_magnitude= 10.4 | rotation= {{Convert|10.58|h|d|abbr=on|lk=on}} | albedo= {{val|0.0311|0.001}} | mean_radius= {{val|29.925|0.6}} km }} 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] References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=816;cad=1 |title=816 Juliana (1916 YV) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=4 May 2016}} 2. ^{{cite book|author=Lutz D. Schmadel|title=Dictionary of Minor Planet Names|url=https://books.google.com/books?id=uwGbkbhMVyAC|series=Addendum to Fifth Edition: 2006–2008|year=2011|publisher=Springer|isbn=978-3-642-01966-1}} External links
5 : Juliana asteroids|Discoveries by Max Wolf|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1916 |
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