Talk:Astronomical system of units

This is an old revision of this page, as edited by Justlettersandnumbers (talk | contribs) at 17:10, 26 August 2011 (→Digit?: new section). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Revision as of 17:10, 26 August 2011 by Justlettersandnumbers (talk | contribs) (→Digit?: new section)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

Measurement (defunct)

This article is within the scope of WikiProject Measurement, a project which is currently considered to be defunct.MeasurementWikipedia:WikiProject MeasurementTemplate:WikiProject MeasurementMeasurement

Astronomy Start‑class High‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Misplaced Pages.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy
Start	This article has been rated as Start-class on Misplaced Pages's content assessment scale.
High	This article has been rated as High-importance on the project's importance scale.

Physics Start‑class Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
Start	This article has been rated as Start-class on Misplaced Pages's content assessment scale.
Low	This article has been rated as Low-importance on the project's importance scale.

Merge other mass articles with this one?

The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section.

With "concerns" about the stubbyness of some mass articles, should the Solar mass article be merged into this?

Should other mass articles; Jupiter mass, Earth mass, Lunar mass be merged into this article?

This could be done under a heading "Other units used in Astronomy". HarryAlffa (talk) 11:32, 21 September 2009 (UTC)

Solar mass

The following is a closed discussion of the proposal. Please do not modify it. Subsequent comments should be made in a new section on the talk page. No further edits should be made to this section.

The result of the proposal was no merge

Oppose I think there is enough out there that it can be kept as a standalone article. 76.66.196.139 (talk) 06:06, 22 September 2009 (UTC)
Oppose If there's one "astronomical mass" article that should remain independent, it's this one. The solar mass effectively serves as the standard for all the other masses. Physchim62 (talk) 08:33, 22 September 2009 (UTC)
Oppose This is quite a commonly used mass and the standard for stellar masses in addition to masses of black holes and galaxies. There are enough users who would want to know about solar mass with out the extra 'baggage' of other less commonly used masses. From the stand of precedence all other standard units have their own separate pages. TStein (talk) 15:40, 22 September 2009 (UTC)
Oppose This one is fine by itself. There's a clear distinction in astronomy between the units used at stellar scales and those used at planetary scales. Iridia (talk) 00:21, 23 September 2009 (UTC)
Oppose (weakly) based on all of the above. -- Kheider (talk) 09:02, 23 September 2009 (UTC)

The above discussion is preserved as an archive of the proposal. Please do not modify it. Subsequent comments should be made in a new section on this talk page. No further edits should be made to this section.

Jupiter mass

Oppose I think there is enough out there that it can be kept as a standalone article. 76.66.196.139 (talk) 06:06, 22 September 2009 (UTC)
Support merge into an article on planetary mass. Physchim62 (talk) 08:33, 22 September 2009 (UTC)
Oppose: It is used enough for the description of planets to keep as a separate article. Physchim62's idea would work as well. I would prefer both the standalone Jupiter mass and the planetary mass.TStein (talk) 15:46, 22 September 2009 (UTC)
Support Physchim62's suggestion, which I also mooted at Talk:Jupiter. Iridia (talk) 00:34, 23 September 2009 (UTC)
Neutral I am not really sure since this is almost an inclusionist/deletionist debate. -- Kheider (talk) 09:02, 23 September 2009 (UTC)

Earth mass

Neutral 76.66.196.139 (talk) 06:06, 22 September 2009 (UTC)
Support merge into an article on planetary mass. Physchim62 (talk) 08:33, 22 September 2009 (UTC)
Support Physchim62's suggestion. I am not an astronomer but it does not seem useful enough of a unit to keep on its own. TStein (talk) 15:46, 22 September 2009 (UTC)
Support Physchim62's suggestion: measurements of extrasolar planetary systems have a clear set of units, and this is one of them. Iridia (talk) 00:34, 23 September 2009 (UTC)
Neutral I think usage of this will increase over the next few years as we discovery more Earth-like exoplanets. -- Kheider (talk) 09:02, 23 September 2009 (UTC)

Lunar mass

Support though the article currently says it is about the IAU defined units... perhaps two articles are in order, one for the IAU units, and one for other units... 76.66.196.139 (talk) 06:06, 22 September 2009 (UTC)
Support merge into an article on planetary mass. Physchim62 (talk) 08:33, 22 September 2009 (UTC)
Support Physchim62's suggestion. I am not an astronomer but it does not seem useful enough of a unit to keep on its own. TStein (talk) 15:46, 22 September 2009 (UTC)
Delete This isn't used. The article already has a delete note on its talk page from two years ago. Iridia (talk) 00:23, 23 September 2009 (UTC)
Merge/Delete The only time I have defined something compared to our moon is the Pluto infobox at 0.178 moon, and even then I didn't wiki-link to anything. Perhaps just merge lunar mass to Earth mass. -- Kheider (talk) 09:02, 23 September 2009 (UTC)

Discussion

I would prefer a separate article on planetary mass rather than merging them here: they are empirical quantities rather than a system of units. Physchim62 (talk) 08:33, 22 September 2009 (UTC)

Sounds good to me.TStein (talk) 15:46, 22 September 2009 (UTC)

Is the mass of Jupiter an IAU standard? I didn't see it listed in the referenced document.—RJH (talk) 16:50, 22 September 2009 (UTC)

The mass of Jupiter is not a standard. The best estimates come from it being an adjusted parameter in solar system ephemerides, in which the unit of mass is the solar mass. You can also create separate "Jovian" ephemerides, but I think the accuracy of these is much less that the ones based on the solar system as a whole. Physchim62 (talk) 19:39, 22 September 2009 (UTC)

Alright, we have Physchim62 and TStein at this page, and at Talk:Jupiter we have Kheider and myself in clear support of a merged planetary mass article, to merge Jupiter mass and Earth mass. I would say this is probably sufficient consensus: are there any other suggestions, or any objections? Iridia (talk) 00:34, 23 September 2009 (UTC)

What I suggest is that I create Planetary mass – I say me simply because I happen to know my way around the sources to a certain extent – but without explicitly merging the other articles. Then we can have another couple of days of discussion as to where things go before taking the plunge. Merging is relatively easy, but demerging afterwards is more difficult, so I don't think we need to be in a rush. There's enough material to create an article on planetary mass from scratch, even if we end up never doing any merges, and I can get a first version out this afternoon (European time). Physchim62 (talk) 11:54, 23 September 2009 (UTC)

Comment shouldn't it be planet-based mass units? (or similar) 76.66.197.30 (talk) 04:57, 24 September 2009 (UTC)

It took me a bit longer than I thought, but planetary mass is now up and open for improvement! Physchim62 (talk) 13:00, 26 September 2009 (UTC)

This poll is closed, as the merge suggestion is replaced by a new proposal at planetary mass, and per a slight consensus here. 76.66.197.30 (talk) 14:17, 29 September 2009 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Digit?

I see no mention is this article of the digit, from Classical times until (very?) recently one-twelfth of the apparent diameter of the sun or moon and used, I believe, in measurement of eclipses. Has this been replaced by some other unit, or simply forgotten? Justlettersandnumbers (talk) 17:10, 26 August 2011 (UTC)

Categories: