HD 183263
HD 183263 is an 8th magnitude subgiant star located approximately 177 light-years away in the constellation Aquila. This star is about to or already ran out of hydrogen fuel at its core and is evolving into a red giant before dying as a white dwarf. It has absolute magnitude (apparent magnitude at 10 pc) of 4.16 compared to the Sun’s 4.83, which indicates the star is more luminous than the Sun, and therefore hotter by about 100 K. Planetary system The star has two known planets in orbit around it. Planet b was discovered in 2005 while planet c was discovered in 2008. A 2022 study estimated the true mass of HD 183263 c at about via astrometry, although this estimate is poorly constrained. See also List of multiplanetary systems List of exoplanetary host stars References External links Aquila (constellation) G-type subgiants 183263 095740 Planetary systems with two confirmed planets Durchmusterung objects