Talk:Mu Cephei

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[edit] Distance

There is a contradiction in the article. The text reads a distance from the sun of 3000 ly, the infobox reads 5000. Arasaka 18:32, 27 December 2006 (UTC)

[edit] More contradiction

From the infobox: Distance approx. 5000 ly (approx. 2000 pc)

The page on parsecs says a parsec = 3.26 ly. If that's the case, 5000 ly could not equal 2000 pc. If the 2000 figure is correct, then the star would be about 7000 ly away. 4.243.146.153 18:12, 6 January 2007 (UTC)

The 5000 ly value apparently comes from the Hipparcos parallax (0.62 ± 0.52 mas). If it is a member of the Cepheus OB2 association, the distance is 2400 ly (see Jim Kaler's Stars). Measured angular diameter suggest that the star is more farther, at 2800 ly. It is obvious that 5000 ly is too much.--JyriL ^talk 18:44, 6 January 2007 (UTC)

CalRis (talk): I removed the parallax/distance info from data box. Reason: the values given are totally unreliable. These values given for parallax (taken from the Hipparcos catalogue) are (in this case) useless due to large error margin. No surprise there, however, as it is a trigonometric parallex, and at these distances... For more information see the reference I added to the article. Bye. —Preceding comment was added at 11:21, 18 March 2008 (UTC)