Talk:Mizar (star)
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[edit] Broken Link
The link to the "Extensive article on Mizar" gets a "page cannot be found message." Has it been moved? 4.243.146.153 19:25, 6 January 2007 (UTC)
If anyone is willing to write it could we have a separate page for alcore? --jim
I rewrote this sentence because as far as I could google there is no consensus on whether Alcor is orbiting Mizar at all, the Hipparcos data still has error bars which could place their separation over several light years.
The two stars lie more than a quarter of a light year apart but proper motions show they actually do form a binary star system, not an optical binary as previously thought.
If new astrometric data has appeared that changes this uncertainty then my change may need to be revised.
I also named the probable discoverer as Benedetto Castelli and not Riccioli and failing that, Galileo Galilei. Most sources and books appear to have erroneously copied assertions that Giovanni Battista Riccioli was the discoverer from his much-quoted note. See Umberto Fedele's Italian 1949 article and [1].
What's more there are several quotes in books and online that Alcor is a spectroscopic binary, and the above article disputes this, claiming that sources are merely copying earlier writings without determining the original source. -Wikibob | Talk 08:42, 2004 Aug 14 (UTC)
- Shouldn't this article be called Mizar and Alcor? 132.205.15.43 03:28, 2 Dec 2004 (UTC)
In light of the fact that Alcor's disambiguation page links this article and not an article proper on Alcor, it seems that either this article should be renamed to include both until such time as an article can be written for Alcor.rmagill 20:43, 16 November 2006 (UTC)
Shouldn't this article be a disambiguation? --Devnevyn 20:31, 9 Jun 2005 (UTC)
- There is a "Mizar (disabiguation)" page. This article was an exact word-for-word duplicate of "Zeta Ursae Majoris." Have changed this article to a Redirect there. It contains an "Other Uses" link to the Mizar dab page. "Alcor" already redirected to "Zeta Ursae Majoris." B00P 17:25, 25 January 2006 (UTC)
[edit] Mizar-Alcor Distance
This article states The two stars lie more than a quarter of a light year apart and yet, Mizar's distance is given as 78 ± 1 ly, and Alcor's is given as 81.2 ± 1.2. Even if you take the maximum estimate for Mizar's distance and the minimum for Alcor's, you get a 1 light-year distance, and if you take the mid-range for each, you get a distance of about 3.2 ly Nik42 05:33, 2 June 2007 (UTC)
