Talk:Equatorial coordinate system

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Constellations Grouped by Equatorial Quadrants[edit]

Probably more appropriate at constellation or something similar. This article is about a coordinate system, not constellations. I'm not even sure what an "equatorial quadrant" is, and I've been doing astronomy for 40 years. Tfr000 (talk) 00:59, 24 September 2015 (UTC)[reply]

I also have no idea what an equatorial quadrant is. Jc3s5h (talk) 12:37, 24 September 2015 (UTC)[reply]

Moved to Talk:Constellation Tfr000 (talk) 13:56, 27 September 2015 (UTC)[reply]

so... all of these ratings at the top of this page...[edit]

...one gets the impression that these were assigned years ago and no one has revisited them since. Tfr000 (talk) 01:39, 19 January 2016 (UTC)[reply]

Eschew Obfuscation[edit]

GenacGenac (talk) 20:30, 30 December 2016 (UTC)Kindly explicate J2000[reply]

A D. in degrees[edit]

Not many texts mention that the right ascension can also be expressed in degrees. It is for example the case for GCN 21916 note issued in 2017 concerning the neutrino emission of the TXS 0506 + 056 blazar, see at https://gcn.gsfc.nasa.gov/gcn3/21916.gcn3 ).

This coordinate can easily be converted to hourly units knowing that the celestial sphere turns in appearance of 15 ° 02'28 "per hour (e.g. a right ascension AD = 77.43 ° corresponds to 5h 9.4m). This remark has been added in text - luxorion — Preceding unsigned comment added by 2001:7E8:C9DE:8800:BD02:277A:7186:8F1F (talk) 08:08, 18 July 2018 (UTC)[reply]

First, when you see a heading with "Main article: Right ascension" under it, that means the material in that section is only a brief summary, and more complete information may be found at the article mentioned. The material you added to the article, if it belongs anywhere, would belong at Right ascension.

Second, any information that is the least bit obscure should be accompanied by a citation to a reliable source; that is required by the verifiability policy. Adding a phrase like "GCN 21916 note issued in 2017 concerning the neutrino emission of the TXS 0506 + 056 blazar" is not appropriate without providing a citation to the source. Also, it isn't the least bit obvious where the quantity 15° 2′ 28″ comes from, so a citation to a reliable source is required.

Third, I don't know what "AD" means.

Fourth, 1 hour of right ascension is exactly equal to 15° of right ascension. The phrase "the celestial sphere turns in appearance of 15 ° 02'28 "per hour" is not idiomatic English and I don't know what it means.

I have deleted the addition. Jc3s5h (talk) 12:20, 18 July 2018 (UTC)[reply]