Hen 3-1475

==Overview==
Hen 3-1475 is a bipolar protoplanetary nebula situated in the constellation of Sagittarius and around 18.00 kilolight-years from Earth. It features S-shaped bipolar jets that are outflowing at unprecedented rates and are produced by the polar regions of the central bright star. Hen 3-1475 was discovered by American astronomer Karl Gordon Henize on April, 1976; he designated it Henize 3-1475, but it is sometimes shortened to Hen 3-1475.https://ui.adsabs.harvard.edu/abs/1976ApJS...30..491H/abstract
It may have been formed by a central star that undergoes a full precession every thousand years, causing the notable S-shaped jets we see today. The central star partially blasted away its entire shell, and because it is not sufficiently hot to cause ionization of the gas shell, the nebula fails to shine. And for another reason, the visibility of the nebula is caused by light reflected off the expelled gas by the luminous central star. In the future, the star envelope will be fully blown out, and the gas will begin to glow and become a planetary nebula.https://www.nasa.gov/mission_pages/hubble/science/hen3-1475.html
Category:Real objects
Category:Objects
Category:Nebulae