Talk:47 Ursae Majoris c

From Wikipedia, the free encyclopedia

Good article 47 Ursae Majoris c has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do. If it no longer meets these criteria, you can delist it, or ask for a reassessment.
July 23, 2006 Good article nominee Listed
WikiProject Astronomy This article is within the scope of WikiProject Astronomy, which collaborates on articles related to astronomy, and WikiProject Astronomical Objects, which collaborates on articles related to astronomical objects.
Good article GA This article has been rated as GA-Class on the assessment scale.

This article has been rated but has no comments. If appropriate, please review the article and leave comments here to identify the strengths and weaknesses of the article and what work it will need.

[edit] This is a Good Article

After review, I've determined that this article meets the qualifications for GA status. It is well written, well referenced, and comprehensive. I'm "Mass Passing" this article along with 2 related articles. The entire list is below. If new developments arise that would effect the references or comprehensiveness of this article, it may affect the others as well.

These articles are good examples of well written articles on a short subject. They represent a comprehensive view of a relatively new observation, in a concise manner. Future additions could include images such as diagrams comparing planetary size / orbital distances, etc. If you have any questions on my rationale for promotion, please leave a message on my talk page. Phidauex 19:25, 22 July 2006 (UTC)

[edit] New Orbital solution

I got a new orbital solution for this planet, 47 Ursae Majoris c. This new orbital solution comes from calculating between angular distance and distance from Extrasolar Planet Encyclopedia. I used a quotient of angular distance between planets b & c in 47 Ursae Majoris system. Then I multiplied the resultant orbital distance for 47 Ursae Majoris b and quotient of angular distance. Then I'll get a new preferred orbital distance (semi-major axis) of 8.181 AU and previously 3.79 AU. The orbital period of 7586 days comes directly from wikipedia article and 47 Ursae Majoris c in Extrasolar Planet Encyclopedia (previously 2594 days).

Here is the equation for orbital distance: \ a = \theta \times D.

Note that the distance must be in parsecs, orbital distance in AU, and angular distance in arcseconds.

Example:a = 0.158647 × 14.077 = 2.233, then you will find the quotient of angular distance, 0.581203 ÷ 0.158647 = 3.6635. Now you will multiply the resultant orbital distance of 47 Ursae Majoris b and angular distance quotient — 2.233 × 3.6635 = 8.181 AU for 47 Ursae Majoris c. Use your calculator to verify the result. BlueEarth 02:40, 6 May 2007 (UTC)