589 Croatia 3032759 222116621 2008-06-27T17:12:23Z Scapler 6142977 category <div style="float: right; text-align: center;"> '''589 Croatia''' {| width="280" style="border-color: #999999; border-style: solid; border-width: 1px;" ! bgcolor="#ffffcc" colspan="2" | Name |- | '''Name''' | Croatia |- | '''Designation''' | 1906 TM |- ! bgcolor="#ffffcc" colspan="2" | Discovery |- | width="140" | '''Discoverer''' | [[August Kopff]] |- | '''Discovery date''' | [[March 3]], [[1906]] |- | '''Discovery site''' | [[Heidelberg]] |- ! bgcolor="#ffffcc" colspan="2" | Orbital elements |- | colspan="2" align="center" | <small>[[Epoch (astronomy)|Epoch]] [[August 18]], [[2005]] ([[Julian day|JDCT]] 2453600.5)</small> |- | '''[[Eccentricity (orbit)|Eccentricity]] ''(e)''''' | 0.042 |- | '''[[Semimajor axis]] ''(a)''''' | 3.133 [[Astronomical unit|AU]] |- | '''[[Perihelion]] ''(q)''''' | 3.001 [[Astronomical unit|AU]] |- | '''[[Aphelion]] ''(Q)''''' | 3.265 [[Astronomical unit|AU]] |- | '''[[Orbital period]] ''(P)''''' | 5.545 [[Julian year (astronomy)|a]] |- | '''[[Inclination]] ''(i)''''' | 10.825° |- | '''[[Longitude of the ascending node]] ''(Ω)''''' | 177.945° |- | '''[[Argument of Perihelion]] ''(ω)''''' | 212.894° |- | '''[[Mean anomaly]] ''(M)''''' | 111.582° |} </div> '''589 Croatia''' is a [[minor planet]] orbiting the [[Sun]], discovered by [[August Kopff|Dr. August Kopff]] from [[Landessternwarte Heidelberg-Königstuhl|Königstuhl-Heidelberg]] Observatory, with the use of the photographic method. In the moment of the discovery, the asteroid was 12,5<sup>mv</sup> and was in the constellation of Virgo. The object was named [[Croatia]], after the suggestion made by professor [[Max Wolf]], to honor the foundation of the [[Astronomical Observatory of the Croatian Natural Sciences Society ]] in [[Zagreb]]. The discovery was published in the ''[[Astronomische Nachrichten]]'' magazine, in the article wrote by Professor Wolf. Later, some astronomers ([[Johann Palisa]], [[K. Lohnert]] and some others) were making mesurements for the purpose of determining the [[orbital elements]]. From these measurements [[P.V. Neugebauer|Dr. P.V. Neugebauer]] from [[Berlin]] and [[M.S. Mello]] and [[Simas]] from [[Trafaria]] ([[Lisboa]]) had independently determined the first orbital elements. Observations had continued, and among observers there were A. Kopff, [[E. Bianchi]], [[A. Abetti]], [[G. Zappa]], [[P. Chafardet]], [[E. Millossevich]], J. Palisa, and some others. Observations were made from [[Berlin]], [[Copenhagen]], [[Rome]], [[Arcetra]] and some other [[Italy|Italian]] cities. The radius of (probably) 28,452 km (and, consequently, the superficial area of 2543,2 km<sup>2</sup>, and equatorial circumference of 89,385km) were determined by the use of [[Argelander's Method]]. ==External links== * [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets] {{beltasteroid-stub}} {{MinorPlanets Navigator|588 Achilles|590 Tomyris}} {{MinorPlanets_Footer}} [[Category:Main Belt asteroids|Croatia]] [[Category:Discoveries by August Kopff|Croatia]] [[de:Croatia (Asteroid)]] [[fr:(589) Croatia]] [[hr:589 Croatia]] [[it:589 Croatia]] [[no:589 Croatia]] [[nn:589 Croatia]] [[pl:589 Croatia]] [[pt:589 Croatia]] [[simple:589 Croatia]] [[sk:589 Croatia]]