Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
by Staff Writers
Baltimore MD (SPX) Apr 01, 2013
The object in this image is Jonckheere 900 or J 900, a planetary nebula - glowing shells of ionized gas pushed out by a dying star. Discovered in the early 1900s by astronomer Robert Jonckheere, the dusty nebula is small but fairly bright, with a relatively evenly spread central region surrounded by soft wispy edges.
Despite the clarity of this Hubble image, the two objects in the picture above can be confusing for observers. J 900's nearby companion, a faint star in the constellation of Gemini, often causes problems for observers because it is so close to the nebula - when observation conditions are bad, this star seems to merge into J 900, giving it an elongated appearance. Hubble's position above the Earth's atmosphere means that this is not an issue for the space telescope.
Astronomers have also mistakenly reported observations of a double star in place of these two objects, as the planetary nebula is quite small and compact.
J 900's central star is only just visible in this image, and is very faint - fainter than the nebula's neighbor. The nebula appears to display a bipolar structure, where there are two distinct lobes of material emanating from its center, enclosed by a bright oval disk. Hubble/European Space Agency
Stellar Chemistry, The Universe And All Within It
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|