HD 13189 [SEP] constellation
HD 13189
HD 13189 is an 8th magnitude star in Triangulum constellation.
In 2005, a planetary companion or brown dwarf was announced in orbit around this star. At the time, the parallax estimate was , which would suggest a distance of with a high margin of error. In 2007, van Leeuwen published a revised parallax measurement of , which corresponds to a distance of with a smaller but still significant margin of error. In 2018 the Gaia spacecraft measured a parallax of which is a distance of with an error of
star is possibly the most massive of all planet-harboring stars.
HD 13189 b.
HD 13189 b is an exoplanet or brown dwarf with mass ranges from 8 to 20 Jupiter mass. This object is located at a mean distance of 277 Gm (1.85 AU) from the star, taking 472 days to make one elliptical orbit.
This object was discovered in Tautenburg, Germany in 2005.