Talk:Conjunction (astronomy)

message: This line, for instance: (literally, a woman with 12 stars around her head and the moon at her feet); In regards to Dec. 23rd, 07. I'm removing it, and what you guys do from there is up to you. -Motley <SUP>a b c qu</SUP> 00:40, 4 August 2007 (UTC)
thread_title:  Unsupported Biblical references 

message: The Milky Way galaxy rotates so slowly that it is not yet much used in astrology. In time that might change.  The 220-million-year cycle is so slow that human beings have only started to observe it.  Even so, many ancient species have been around twice already.
The one visible exterior object, the Andromeda Galaxy or just "Andromeda" for short, is a useful marker for Galactic Rotation.
Andromeda is 21 degrees in galactic latitude south of the Milky Way's equator and 121.17 degrees in galactic longitude away from the
Galactic Center.
Current claims that it was an asteroid that caused extinction of the dinosaurs 65 million years ago almost seem specious compared with the substantial possibility the extinction was caused by a conjunction starting just ten million years earlier between the Andromeda Galaxy and the Galactic Center.
The rotation of 121.17 degrees since then means the conjunction itself would have begun just about 75 million years ago, only ten million years earlier.  It would have signaled the swan song for the brutes.
A galactic conjunction, majestic and slow, would be capable of wearying any species to its faintest original errors no matter how
anciently they were buried in instinct.  It is the sort of thing that would cause the collapse of a species that had been coarsely conceived 300 million years earlier.  Its quantum electrodynamics, anchored in the entire cosmology of the exterior galaxies, would have been inverted more than once, and at conjunction the alignment would have enforced the implications of the errors of their ways.  The dinosaurs had survived one conjunction, but the second conjunction proved decisive.
SyntheticET (talk) 04:54, 14 August 2008 (UTC)
thread_title:  Galactic Center conjunction with Andromeda Galaxy (M31) 

message: astrology is ****. the name of the article must be changed. 88.244.2.117 (talk) 17:59, 8 December 2008 (UTC)
replies: text: The only "occult" in this article should involve occultations! Verdana♥Bøld 02:08, 25 June 2014 (UTC)
thread_title:  What the hell is this ******* astrology thing?! 

message: Occultations in which the larger body is neither the Sun nor the Moon are very rare.
Er, surely Jupiter occults its own moons all the time? — PhilHibbs | talk 16:42, 18 January 2010 (UTC)
replies: text: Yes, and recently, an asteroid occulted a star. It only lasted a few seconds, but was really cool. Verdana♥Bøld 02:08, 25 June 2014 (UTC)
thread_title:  Non-lunar & non-solar occultations not so rare 

message: Shouldn't Pluto be removed from the table of planetary conjunctions? Matchups 20:01, 22 November 2010 (UTC)
thread_title:  Pluto 

message: Why is this page not split? These two subjects are simply too disparate to be lumped together like this. When people look up an article about a scientific subject they should be presented a page of what is generally believed to be true, not a page half of truth, half magical effects which are not only not believed by most people but for which there isn't any actual evidence for! I'll probably be less horny during the transit of Venus (why it must be, being surrounded by dozens of you-diameters of eye-damaging bright solar disk surely should diminish any planet's magical power!) but it'd be because I'm occupied watching it, and not because the Sun's magic is outshining it. Sagittarian Milky Way (talk) 21:06, 17 March 2012 (UTC)
thread_title:  Can we please get rid of this astrology stuff? 

message: This article should probably discuss what a conjunction is, and simply point to another article listing upcoming conjunctions. It's much too cluttered as is. 71.181.21.203 (talk) 19:05, 2 May 2012 (UTC)
thread_title:  Split off a "list of upcoming conjuctions" 

message: The section "Notable Conjunctions" lists several planetary groupings when three or more planets appeared to lie fairly close in the sky. These groupings are not strictly conjunctions, but will include conjunctions at particular times. Is it right that the article confuses the two concepts? By all means include a list of notable conjunctions, but the article should not list vague planetary groupings. And including a reference to the Galactic Centre is eccentric.  — Preceding unsigned comment added by 212.183.128.89 (talk) 14:55, 3 July 2012 (UTC)
thread_title:  Conjunctions vs. general planetary groupings 

message: Isn't it possible that three planets (e. g. Jupiter, Uranus and Neptune) are in conjunction? How often does that happen? Same with four or even seven planets.--31.17.153.69 (talk) 22:33, 23 November 2013 (UTC)
replies: text: So no one calls a close grouping a conjunction? A "real" conjunction like Venus-Mercury can be almost 14 degrees apart! Closer 3-conjunctions have happened. (Mercury passing the 1990s ice giant overtaking guarantees it) Sagittarian Milky Way (talk) 01:57, 7 March 2014 (UTC)
replies: text: Sky and Telescope refers to three close planets as a "conjunction." Verdana♥Bøld 02:08, 25 June 2014 (UTC)
thread_title:  Three or more planets? 

message: I have made a seperate section for quasi, because it is neither superior nor inferior, which is the section it was in. Also, Mars goes retrograde too, and when it does, Jupiter might well sneak up behind it (and get arbitrarily close, modulo orbital planes). Why did you guys say this only happens with Merc or Venus? It happens with outer planets too; it is just not as noticeable.  Or am I wrong? Verdana♥Bøld 02:08, 25 June 2014 (UTC)
thread_title:  Quasiconjunction, and why  only for inner planets? 

message: Does the"Superior and inferior" section concern only conjunctions involving the Sun? Whereas the definition at the article's beginning is "n two astronomical objects (...)  In the case of two objects that always appear close to the ecliptic – such as two planets, or the Moon and a planet, or the Sun and a planet – ". --109.54.28.173 (talk) 18:18, 8 July 2014 (UTC)
thread_title:  Superior and inferior: only concerning the Sun? 

message: The diagram in this section is rather badly spelt. 94.30.84.71 (talk) 17:57, 11 July 2015 (UTC)
replies: text: I can't find any misspellings. Please elaborate. Tfr000 (talk) 21:06, 11 July 2015 (UTC)
thread_title:  Superior and inferior 

message: A conjunction occurs when two astronomical objects or spacecraft
Someone added spacecraft. Do we want this article to go there? Tfr000 (talk) 20:19, 7 November 2015 (UTC)
thread_title:  spacecraft? 

message: Hello fellow Wikipedians,
I have just modified 3 external links on Conjunction (astronomy). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
*Added archive https://web.archive.org/web/20050410052540/http://www.marco-peuschel.de/JUPITEROCCULTSATURN.pdf to http://www.marco-peuschel.de/JUPITEROCCULTSATURN.pdf
*Added archive http://webarchive.loc.gov/all/20080801080023/http://www.utahskies.org/report/20011116/APA-Moon-Saturn-Sept.jpg to http://www.utahskies.org/report/20011116/APA-Moon-Saturn-Sept.jpg
*Added archive https://archive.is/20110824075331/http://www.etsu.edu/physics/etsuobs/starprty/22099dgl/planalign.htm to http://www.etsu.edu/physics/etsuobs/starprty/22099dgl/planalign.htm
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
Cheers.—InternetArchiveBot (Report bug) 05:01, 12 August 2017 (UTC)
thread_title:  External links modified 

message: What are the criteria for a qualifying as a "notable conjunction"? For example, It’s A Big Year For The Solar System As Mars, Saturn, Jupiter And Venus Take Turns To Look Their Best mentions several conjunctions in 2020. Why would one be more notable than the others to be listed here? It seems that the list just accreted and most aren't really significant.
I'd vote for removing most of the ones after 2010. Alternatively, there should be entries for future conjunctions. Sesquiannual (talk) 02:05, 31 May 2020 (UTC)
thread_title:  "Notable" Conjunctions 

message: According to a spreadsheet I have made, Mercury and Venus usually cross four times in one synodic cycle of Venus, but once in a while twice or six times. Also, it seems that Mars can cross Mercury five times in about half a year. Can someone supply a source for these statements? If I can show it with an on-line program, would that be sufficient as a reference? Is there such an on-line program? Eric Kvaalen (talk) 16:40, 26 July 2023 (UTC)
replies: text: I found that I can use https://ssd.jpl.nasa.gov/horizons/app.html for this. I found a triple conjunction between Mercury and Venus on December 15, 2029, December 16, 2069, and January 9, 2070, and these were preceded by a triple conjunction on January 14, March 19, and April 24 of 2069. So that's six conjunctions in one synodic cycle of Venus. It's not ideal, because the ones on December 15 and 16 are so close together. and Venus gets only about 3 or 4 arc minutes to the west of Mercury before Mercury speeds up and gets ahead again. Eric Kvaalen (talk) 13:17, 31 July 2023 (UTC)

text: An even better example: A quintuple conjunction between Mercury and Venus (Feb 16, Mar 16, May 27, Aug 13, Sep 5, 2048, Venus moving eastward behind the sun), and then a singlet on March 18, 2049 (Venus moving westward in front of the sun). Eric Kvaalen (talk) 14:51, 31 July 2023 (UTC)

text: And a case of only two conjunctions in one synodic cycle: From December 2005 through July 2007, the only conjunctions were on January 17 and November 7 of 2006. There was almost a conjunction (a quasiconjunction) on August 9. Eric Kvaalen (talk) 15:17, 31 July 2023 (UTC)
thread_title: Multiple conjunctions