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- Inex abstract "The inex is an eclipse cycle of 10,571.95 days (about 29 years minus 20 days). The cycle was first described in modern times by Crommelin in 1901, but was named by George van den Bergh who studied it half a century later. It has been suggested that the cycle was known to Hipparchos. A new saros series often begins one inex after the last series started.It corresponds to:358 lunations (synodic months)388.50011 draconitic months30.50011 eclipse years383.67351 anomalistic months.The 30.5 eclipse years means that if there is a solar eclipse (or lunar eclipse), then after one inex a New Moon (resp. Full Moon) will take place at the opposite node of the orbit of the Moon, and under these circumstances another eclipse can occur.Unlike the saros, the inex is not close to an integer number of anomalistic months so successive eclipses are not very similar in their appearance and characteristics. From the remainder of 0.67351, being near 2⁄3, every third eclipse will have a similar position in the moon's elliptical orbit and apparent diameter, so the quality of the solar eclipse (total versus annular) will repeat in these groupings of 3 cycles (87 years minus 2 months), called triads. Although the inex series lasts much longer than the saros, it is not unbroken: at the beginning and end of a series, eclipses may fail to occur. However once settled down, inex series are very stable and run for many thousands of years.An inex also is close to an integer number of days (10,571.95) so solar eclipses on average take place at about the same geographical longitude at successive events, although variations of the moon's revolutionary speed at different points of the eclipse mask this relation. In addition sequential events occur at opposite geographical latitudes because the eclipses occur at opposite nodes. This is in contrast to the better known saros, which has a period of about 6,585 1⁄3 days, so successive solar eclipses tend to take place about 120° in longitude apart on the globe (although at the same node and hence at about the same geographical latitude).The significance of the inex cycle is not in the prediction, but in the organization of eclipses: any eclipse cycle, and indeed the interval between any two eclipses, can be expressed as a combination of saros and inex intervals. Also when a saros series has terminated, then often one inex after the last eclipse of that saros series, the first eclipse of a new saros series occurs. This incoming and exiting of saros series separated by an interval of 29 years suggested the name for this cycle.".
- Inex thumbnail Saros-Inex_panorama.png?width=300.
- Inex wikiPageID "205489".
- Inex wikiPageLength "4683".
- Inex wikiPageOutDegree "22".
- Inex wikiPageRevisionID "685789218".
- Inex wikiPageWikiLink Andrew_Claude_de_la_Cherois_Crommelin.
- Inex wikiPageWikiLink Astronomical_year_numbering.
- Inex wikiPageWikiLink Category:Eclipses.
- Inex wikiPageWikiLink Eclipse_cycle.
- Inex wikiPageWikiLink George_van_den_Bergh.
- Inex wikiPageWikiLink Hipparchus.
- Inex wikiPageWikiLink June_2058_lunar_eclipse.
- Inex wikiPageWikiLink Lunar_eclipse.
- Inex wikiPageWikiLink Lunar_month.
- Inex wikiPageWikiLink Lunar_node.
- Inex wikiPageWikiLink Orbit_of_the_Moon.
- Inex wikiPageWikiLink Saros_(astronomy).
- Inex wikiPageWikiLink Solar_eclipse.
- Inex wikiPageWikiLink File:Inex_saros_lunar_series_1000-2500.png.
- Inex wikiPageWikiLink File:Saros-Inex_panorama.png.
- Inex wikiPageWikiLinkText "Inex".
- Inex wikiPageWikiLinkText "inex".
- Inex wikiPageUsesTemplate Template:Frac.
- Inex wikiPageUsesTemplate Template:Reflist.
- Inex wikiPageUsesTemplate Template:Solar_Inex_series_2020_June_21.
- Inex subject Category:Eclipses.
- Inex type Event.
- Inex type Event.
- Inex comment "The inex is an eclipse cycle of 10,571.95 days (about 29 years minus 20 days). The cycle was first described in modern times by Crommelin in 1901, but was named by George van den Bergh who studied it half a century later. It has been suggested that the cycle was known to Hipparchos.".
- Inex label "Inex".
- Inex sameAs Q924746.
- Inex sameAs Inexzyklus.
- Inex sameAs Inex.
- Inex sameAs Inex.
- Inex sameAs Inex-cyclus.
- Inex sameAs Inex.
- Inex sameAs m.025s3s4.
- Inex sameAs Q924746.
- Inex sameAs 依內克斯.
- Inex wasDerivedFrom Inex?oldid=685789218.
- Inex depiction Saros-Inex_panorama.png.
- Inex isPrimaryTopicOf Inex.