27 Euterpe

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=27 Euterpe
discoverer=J. R. Hind
discovered=November 8, 1853
alt_names=1945 KB
mp_category=Main belt
epoch=June 14, 2006 (JD 2453900.5)
semimajor=351.259 Gm (2.348 AU)
perihelion=290.966 Gm (1.945 AU)
aphelion=411.552 Gm (2.751 AU)
eccentricity=0.172
period=1314.171 d (3.60 a)
inclination=1.584°
asc_node=94.807°
arg_peri=356.754°
mean_anomaly=126.457°
avg_speed=19.29 km/s
dimensions=124×75 km ^MPCit_JPL|27
mass=9.3e|17? kg
density=2.0? g/cm³
surface_grav=0.0268? m/s²
escape_velocity=0.0508? km/s
rotation=0.4338 d (10.41 h) [http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab]
spectral_type=S
magnitude = 8.30 to 12.55
abs_magnitude=7.0
albedo=0.162 (geometric) [http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab]
angular_size = 0.13" to 0.035"
single_temperature=~178 K

27 Euterpe (pronEng|juːˈtɚpi, _gr. "Ευτέρπη)" is a large Main belt asteroid.

It was discovered by J. R. Hind on November 8, 1853 and named after Euterpe, the Muse of music in Greek mythology.

Euterpe is one of the brightest asteroids in the night sky.cite web
title=Bright Minor Planets 2004
publisher=Minor Planet Center
url=http://www.cfa.harvard.edu/iau/Ephemerides/Bright/2004/
accessdate=2008-05-20] On December 25 2015, during a perihelic opposition, it will shine with an apparent magnitude of 8.3. cite web
last = Yeomans |first = Donald K
url=http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=27
title=Horizons Online Ephemeris System
publisher=California Institute of Technology, Jet Propulsion Laboratory
accessdate=2008-05-20]

References

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=27;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=27 Ephemeris]