PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM LABEL_REVISION_NOTE = "2008-12-15 EPOXI:McLaughlin Created. 2009-08-06 EPOXI:McLaughlin Lien resolution for 23 Jul 2009 peer review: Copied and dated latest properties from Extrasolar Planets Encyclopedia." OBJECT = TARGET TARGET_NAME = "XO-3" OBJECT = TARGET_INFORMATION TARGET_TYPE = "STAR" PRIMARY_BODY_NAME = "N/A" ORBIT_DIRECTION = "N/A" ROTATION_DIRECTION = "N/A" TARGET_DESC = " Target Description ================== XO-3 is a star with a detected substellar companion, XO-3 b, and is a target of the Extrasolar Planet Observation and CHaracterization (EPOCh) phase of the NASA EPOXI mission. Other designations for this star are GSC 003727-01064 and 2MASS J04215269+5749018. The star has the following astrometric and photometric properties: Spectral type : F5V Apparent V Magnitude : 9.8 Distance : 260 (-/+23) pc Mass : 1.213 (-/+0.066) solar masses Radius : 1.377 (-/+0.083) solar radii RA : 04 21 52.705 (FK5, epoch and equinox 2000) Dec : +57 49 01.89 (FK5, epoch and equinox 2000) The substellar companion XO-3 b was discovered in 2007 by the XO Project (XO). The known properties of this extrasolar planet are: Mass : 11.79 (-/+0.59) Jupiter masses Semi major axis : 0.0454 (+/-0.00082) AU Orbital period : 3.1915239 (-/+0.00023) days Eccentricity : 0.26 (-/+0.017) Radius : 1.217 (-/+0.073) Jupiter radii Inclination : 84.2 (-/+0.54) deg The astrometric and photometric properties were taken from the 3 March 2008 update for this planetary system in the Extrasolar Planets Encyclopedia. The encyclopedia is maintained by the Paris Observatory and is available online at http://exoplanet.eu. Please consult this web site for the most up-to-date properties." END_OBJECT = TARGET_INFORMATION END_OBJECT = TARGET END