Talk:Solar apex
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Sources and consensus[edit]
The article gives very precise values for the direction and speed of the Sun. But the source of this information is not given.
The motion of the Sun to its apex is the motion w.r.t. the stars in its neighbourhood; more precisely the "Local Standard of Rest", that is the motion superimposed on the orbital motion around the center of the galaxy, that it shares with the stars in its vicinity.
In fact in literature there are wildly different estimates for both the ideal (or average) circular orbit around the Milky Way at the location of the Sun, and of the velocity vector of the Sun w.r.t. this LSR. Some recent publications (check the tables in the introduction listing results from various authors):
http://adsabs.harvard.edu/abs/2009NewA...14..615F
http://adsabs.harvard.edu/abs/2010MNRAS.403.1829S
http://adsabs.harvard.edu/abs/2011MNRAS.412.1237C
From the velocity components of the first (U=+7.5 km/s, V=+13.5 km/s, W=+6.8 km/s) I compute for the apex: l=61°, b=+24° = RA=271° = 18:05, DEC=+35°
Tom Peters (talk) 21:03, 17 March 2013 (UTC)
- I agree that the data is in need of proper citation. From the following reference:
- Zombeck, Martin V. (2007), Handbook of Space Astronomy and Astrophysics (3rd ed.), p. 39, ISBN 978-0-521-78242-5
- I get (α = 271°, δ = 30°); velocity 19.7 km/s. Praemonitus (talk) 18:43, 23 May 2021 (UTC)
Religious & Empirical Significance[edit]
Where the hell is this Surah Ya-Sin passage coming from? Can a citation be provided for this information or is this based on opinion. The vagueness of the quote in question doesn't lend itself necessarily to the theory stated. — Preceding unsigned comment added by 66.190.59.178 (talk) 05:19, 2 May 2014 (UTC)
- This is astrological nonsense and should be deleted from this article. 65.215.33.194 (talk) 19:46, 18 September 2014 (UTC)
Coordinates[edit]
This cites what appear to be precise-coordinate conversions of imprecise coordinates that would indicate a rather rough determination. If so, good science demands that this be made clear. 74.69.160.254 (talk) 17:24, 26 June 2023 (UTC)
There does not seem to be any reliable reference for "solar apex". The only paper that mentions the term is the 1980 Hoskin, Michael paper.
The article should have a source for the definition (Hoskin would work) and the direction. As it is we have some editors making claims by combining data from sources: that is synthesis right? Johnjbarton (talk) 20:43, 26 May 2024 (UTC)
Done Johnjbarton (talk) 23:35, 26 May 2024 (UTC)
