Mira's bow-shock will eventually evolve into a planetary nebula, the form of which will be considerably affected by the motion through the interstellar medium (ISM). ===Component B=== The companion star was resolved by the Hubble Space Telescope in 1995, when it was 70 astronomical units from the primary; and results were announced in 1997.
Mira's bow-shock will eventually evolve into a planetary nebula, the form of which will be considerably affected by the motion through the interstellar medium (ISM). ===Component B=== The companion star was resolved by the Hubble Space Telescope in 1995, when it was 70 astronomical units from the primary; and results were announced in 1997.
The companion's orbital period around Mira is approximately 400 years. In 2007, observations showed a protoplanetary disc around the companion, Mira B.
However, in 2010 further research indicated that Mira B is, in fact, a white dwarf. ==See also== Mira in fiction ==References== ==Further reading== Robert Burnham Jr., Burnham's Celestial Handbook, Vol.
In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalog and standardize proper names for stars.
The WGSN's first bulletin of July 2016 included a table of the first two batches of names approved by the WGSN, which included Mira for this star. ==Observation history== Evidence that the variability of Mira was known in ancient China, Babylon or Greece is at best only circumstantial.
All text is taken from Wikipedia. Text is available under the Creative Commons Attribution-ShareAlike License .
Page generated on 2021-08-05