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HAT-P-42 Facts

Location of HAT-P-42

The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For HAT-P-42, the location is 09h 01m 22.99 and 06° 05` 49.92 .

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Additional HAT-P-42 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHAT-P-42
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Age5.10 Billion Years Old
Visual / Apparent Magnitude12.17
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)09h 01m 22.99
Declination (Dec.)06° 05` 49.92
Distance from Earth2.24 Parallax (milliarcseconds)
 1457.97 Light Years
 447.01 Parsecs
 92,201,788.57 Astronomical Units

Companions (Multi-Star and Exoplanets) Facts

Exoplanet Count1

Estimated Calculated Facts

Radius (x the Sun)1.53

Sources and Links


List of Extrasolar Planets orbiting HAT-P-42

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
HAT-P-42 bConfirmed0.1264.6420.020120.057585.900

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