|
|
| Calculated Values& |
Values listed in the literature |
| Betelgeuse 756 |
630-670 |
| Meissa 7 |
3.1 |
| Bellatrix 6 |
2.7 |
| Alnitak 11 |
9.3 |
| Alnilam 33 |
16 |
| Mintaka 10 |
10 |
| Saiph 12 |
11 |
| Rigel 60-195 |
70 |
Table II. Estimated Radii for the bright stars of Orion compared to the radius of the Sun*
Data for star radii mainly taken from Stars and reference 9.
& R/Ro = (To/T)2 x (L/Lo)1/2, Where R = star radius,
Ro = radius of the Sun, L= star luminosity, Lo = luminosity of
the Sun.
References
1. Upgern, A. Night Has a Thousand Eyes, Plenum Press, 1998, New
York, NY, p. 67-68.
2. Levy, D. H. The Ultimate Universe. Pocket Book, 1998, New
York, NY, p.22.
3. Burnham, R., Jr. Burnham’s Celestial Handbook. Vol. 2, Dover
Publications, 1978, New York, NY p 1271-1345.
4. MegaStar version 5.0, 2002, copyright E.L.B. Software.
5. Jim Kaler, Professor of Astronomy, University of Illinois, on
his web site: http://www.astro.uiuc.edu/~kaler/sow.
6. Macmillan Encyclopedia at http://www.ency-astro.com/eaa/subscriber/index.asp.
7. Radick, R. The luminosity variability of solar-type stars.
In: The Sun in Time, University of Arizona Press, 1991, Tucson,
AZ, 787-808.
8. Freedman, R.A., Kaufman, W. J. Universe, 6th Edition, W.H.
Freeman and Company, 2002, New York, NY, p. A-5.
9. Dibon-Smith, R. StarList 2000, Johh Wiley & Sons, 2000, New
York, NY, p. 4, 150-151.
10. Guide version 8.0, 2002, copyright Project Pluto.
July 1, 2003
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