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- RX_J0806.3+1527 abstract "RX J0806.3+1527 or HM Cancri (sometimes shortened to HM Cnc or J0806 after establishing identity) is an X-ray binary star system about 1,600 light-years (490 pc) away. It comprises two dense white dwarfs orbiting each other once every 321.5 seconds, at an estimated distance of only 80,000 kilometres (50,000 mi) apart (about 1/5 the distance between the Earth and the Moon). The two stars orbit each other at speeds in excess of 400 kilometres per second (890,000 mph). The stars are estimated to be about half as massive as our own Sun. Like typical white dwarfs, they are extremely dense, being composed of degenerate matter, and so have radii of order the radius of Earth. Astronomers believe that the two stars will eventually merge, based on data from the Chandra X-Ray Observatory, which shows that the orbital period of the two stars is steadily decreasing at a rate of 1.2 milliseconds per year as they thus are getting closer by approximately 60 centimetres (2.0 ft) per day.".
- RX_J0806.3+1527 thumbnail J0806.jpg?width=300.
- RX_J0806.3+1527 wikiPageExternalLink ap050601.html.
- RX_J0806.3+1527 wikiPageExternalLink 1003.0658v1.
- RX_J0806.3+1527 wikiPageExternalLink j0806.
- RX_J0806.3+1527 wikiPageExternalLink rx-j0806.shtml.
- RX_J0806.3+1527 wikiPageExternalLink 17440.html.
- RX_J0806.3+1527 wikiPageExternalLink rx0806_3.pdf.gz.
- RX_J0806.3+1527 wikiPageExternalLink 05-078.html.
- RX_J0806.3+1527 wikiPageExternalLink watch?v=ryqN6dyUmJg&feature=related.
- RX_J0806.3+1527 wikiPageID "10456360".
- RX_J0806.3+1527 wikiPageRevisionID "599151586".
- RX_J0806.3+1527 constell Cancer_(constellation).
- RX_J0806.3+1527 dec "+15° 27' 30.20"".
- RX_J0806.3+1527 hasPhotoCollection RX_J0806.3+1527.
- RX_J0806.3+1527 mass "0.5".
- RX_J0806.3+1527 subject Category:Cancer_(constellation).
- RX_J0806.3+1527 subject Category:Objects_named_with_variable_star_designations.
- RX_J0806.3+1527 subject Category:ROSAT_objects.
- RX_J0806.3+1527 subject Category:White_dwarfs.
- RX_J0806.3+1527 subject Category:X-ray_binaries.
- RX_J0806.3+1527 type CelestialBody.
- RX_J0806.3+1527 type Star.
- RX_J0806.3+1527 type PhysicalBody.
- RX_J0806.3+1527 comment "RX J0806.3+1527 or HM Cancri (sometimes shortened to HM Cnc or J0806 after establishing identity) is an X-ray binary star system about 1,600 light-years (490 pc) away. It comprises two dense white dwarfs orbiting each other once every 321.5 seconds, at an estimated distance of only 80,000 kilometres (50,000 mi) apart (about 1/5 the distance between the Earth and the Moon). The two stars orbit each other at speeds in excess of 400 kilometres per second (890,000 mph).".
- RX_J0806.3+1527 label "HM Cancri".
- RX_J0806.3+1527 label "HM Cancri".
- RX_J0806.3+1527 label "RX J0806.3+1527".
- RX_J0806.3+1527 label "RX J0806.3+1527".
- RX_J0806.3+1527 sameAs HM_Cancri.
- RX_J0806.3+1527 sameAs HM_Cancri.
- RX_J0806.3+1527 sameAs RX_J0806.3+1527.
- RX_J0806.3+1527 sameAs HM_Cancri.
- RX_J0806.3+1527 sameAs m.02qdpth.
- RX_J0806.3+1527 sameAs Q1500111.
- RX_J0806.3+1527 sameAs Q1500111.
- RX_J0806.3+1527 wasDerivedFrom RX_J0806.3+1527?oldid=599151586.
- RX_J0806.3+1527 depiction J0806.jpg.
- RX_J0806.3+1527 isPrimaryTopicOf RX_J0806.3+1527.
- RX_J0806.3+1527 name "RX J0806.3+1527".
