PZ Telescopii [SEP] constellation
PZ Telescopii
PZ Telescopii, also known as HD 174429 or simply PZ Tel, is a young star in the constellation Telescopium. It has a maximum magnitude of 8.342 (too faint to be seen with the unaided eye), varying by 0.0342 of a magnitude over roughly 23 hours. It has been classified as a BY Draconis variable, and is one of the closest and hence brightest pre-main-sequence stars to Earth.
Based upon an annual parallax shift of 19.42±0.98 milliarcseconds as measured by the Hipparcos satellite,
companion, currently known as PZ Tel B, is thought to be a brown dwarf; however it is possible (though very unlikely) that it is an extremely large Jupiter-like planet, in which case it would be PZ Tel b, and the first such planet to be directly imaged.
PZ Telescopii was originally considered to be a member of the Beta Pictoris moving group; however in a 2012 paper, James Jenkins of Universidad de Chile and colleagues used three methods to calculate its age and came up with a