Przybylski's Star , or HD 101065, is a rapidly oscillating Ap star that is located at a distance of roughly 370 light-years from the Sun in the southern constellation of Centaurus.

Scientific history
In 1961, the Polish-Australian astronomer Antoni Przybylski ( discovered that this star had a peculiar spectrum that would not fit into the standard framework for stellar classification.

Przybylski's observations indicated unusually low amounts of iron and nickel in the star's spectrum, but higher amounts of unusual elements like strontium, holmium, niobium, scandium, yttrium, caesium, neodymium, praseodymium, thorium, ytterbium, and uranium.
In fact, at first Przybylski doubted that iron was present in the spectrum at all. Modern work shows that the iron-group elements are somewhat below normal in abundance, but it is clear that the lanthanides and other exotic elements are highly overabundant.
Lanthanide elements are from 1000 to 10,000 times more abundant than in the Sun. As a result of these peculiar abundances this star belongs firmly in the Ap star class.


Przybylski's Star also contains many different short-lived actinide elements with actinium, protactinium, neptunium, plutonium, americium, curium, berkelium, californium, and einsteinium being detected. Other radioactive elements discovered in this star include technetium and promethium.(WIKI)

16" F8 Hypergraph
FLI Proline 16803
ASA DDM Mount
RGB image
60 sec per channel

Imaged from Tivoli farm, Namibia July 2018