- 1580 Betulia
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Betulia
symbol =
caption =
discovery = yes
discovery_ref =
discoverer = Johnson, E. L.
discovery_site =Johannesburg (UO)
discovered =May 22 ,1950
designations = yes
mp_name = 1580
alt_names = 1950 KA
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 3.268465159041795
perihelion = 1.12550179562558
semimajor =
eccentricity = .4877058442917759
period = 1189.429246506845
avg_speed =
inclination = 52.09132036275521
asc_node = 62.32691089426164
mean_anomaly = 302.9904195628954
arg_peri = 159.5310408236107
satellites =
physical_characteristics = yes
dimensions = 4.57 km Cite web | title = 1580 Betulia | publisher = European Asteroid Research Node | url = http://earn.dlr.de/nea/001580.htm]
mass =
density =
surface_grav =
escape_velocity =
sidereal_day =
axial_tilt =
pole_ecliptic_lat = 22°
pole_ecliptic_lon = 136°
albedo = 0.077
rotation = 6.13836 hr
temperatures=
temp_name1 =
mean_temp_1 =
max_temp_1 =
temp_name2 =
max_temp_2 =
spectral_type =
abs_magnitude = 14.531580 Betulia (1950 KA) is an
Amor asteroid discovered onMay 22 ,1950 byErnest Leonard Johnson atJohannesburg (UO) . Betulia's shape and orbit have both been accurately determined.Cite journal | title = Radar observations and a physical model of Asteroid 1580 Betulia | last = Christopher | first = Magri | coauthors = et al. | journal = Icarus | volume = 186 | date = 2007 | pages = 152–177 | url = http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4M5WJ2X-4&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=94a18e044990be5a18f543e32f76cf62 | doi = 10.1016/j.icarus.2006.08.004]Physical properties
At its widest point 1580 Betulia is 6.59 ± .66 km wide however its effective diameter is 5.39± .54 km.
Further reading
*Cite journal | title = The surface properties of small asteroids: Peculiar Betulia - A case study | first = Alan W. | last = Harris | coauthors = Mueller, Michael; Delbó, Marco; Busc, Schelte J. | date = December 2005 | journal = Icarus | volume = 179 | pages = 95–108 | url = http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4GJK8FT-7&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=78734a515b2a470b06cef749d9ebb2ef | doi = 10.1016/j.icarus.2005.05.010
*External links
* [http://cfa-www.harvard.edu/iauc/01200/01268.html IAUC 1268 - Initial discovery]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1580+Betulia JPL Small-Body Database Browser on 1580 Betulia]References
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