HD 47536

 
 
HD 47536 is a single star in the southern constellation of Canis Major. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.25. The star is located at a distance of approximately 401 light years from the Sun based on parallax. It is drifting further away with a radial velocity of 80 km/s.
This is an aging, metal-poor giant star with a stellar classification of K1 III. It is about 9.3 billion years old with 94% of the mass of the Sun. Having exhausted the supply of hydrogen at its core, the star cooled and expanded to 23 times the Sun's radius. The star is spinning slowly, taking to complete its sidereal rotation. It is radiating 177 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,384 K. As of 2007, at least one planet is known to orbit this star.
Planetary system.
Setiawan discovered both planets around the star: HD 47536 b in 2003 and HD 47536 c in 2007. However, the existence of this second planet is disputed.