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 = "HAT-P-4" OBJECT = TARGET_INFORMATION TARGET_TYPE = "STAR" PRIMARY_BODY_NAME = "N/A" ORBIT_DIRECTION = "N/A" ROTATION_DIRECTION = "N/A" TARGET_DESC = " Target Description ================== HAT-P-4 is a star with a detected substellar companion, HAT-P-4 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 SAO 64638, BD+36 2593, and GSC 02569-01599. The star has the following astrometric and photometric properties: Spectral type : F Apparent V Magnitude : 11.2 Distance : 310 (-/+30) pc Mass : 1.26 (-0.14/+0.06) solar masses Radius : 1.59 (-/+0.07) solar radii RA : 15 19 57.927 (FK5, epoch and equinox 2000) Dec : +36 13 46.78 (FK5, epoch and equinox 2000) The substellar companion HAT-P-4 b was discovered in 2007 by the Hungarian-made Automated Telescope Network (HATNet). The known properties of this extrasolar planet are: Mass : 0.68 (-/+0.04) Jupiter masses Semi major axis : 0.0446 (+/-0.0012) AU Orbital period : 3.056536 (-/+5.7e-5) days Eccentricity : 0 Radius : 1.27 (-/+0.05) Jupiter radii Inclination : 89.9 (-2.2/+0.1) deg The astrometric and photometric properties were taken from the 27 November 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