January 1981 lunar eclipse (original) (raw)
1981年1月20日月食为一次在协调世界时1981年1月20日出現的半影月食。該次月食半影食分為1.039、全影食分為-0.014。
| Property | Value |
|---|---|
| dbo:abstract | A penumbral lunar eclipse took place on Tuesday, January 20, 1981, the first of two lunar eclipses in 1981. In a rare total penumbral eclipse, the entire Moon was partially shaded by the Earth (though none of it was in complete shadow), and the shading across the Moon should have been quite visible at maximum eclipse. The penumbral phase lasted for 4 hours and 24 minutes in all, though for most of it, the eclipse was extremely difficult or impossible to see. The moon's apparent diameter was larger because the eclipse occurred 5.2 days after perigee (Perigee on approximately 1981 Jan 15 at 03:01:56.7 UTC). This was a relatively rare total penumbral lunar eclipse with the moon passing entirely within the penumbral shadow without entering the darker umbral shadow. (en) O eclipse lunar de 20 de janeiro de 1981 foi um eclipse penumbral, o primeiro de dois eclipses lunares do ano, e único como penumbral. Teve magnitude penumbral de 1,0136 e umbral de -0,0192. Teve duração total de quase 264 minutos. Durante o instante máximo do eclipse, a faixa de penumbra da Terra conseguiu cobrir totalmente o disco lunar, fazendo com que seu brilho diminuísse gradualmente, e sua extremidade norte fosse um pouco mais escurecida, por estar mais próximo da sombra umbral terrestre. Foi um dos eclipses penumbrais mais escuros, apesar de ser difícil de perceber mudanças visíveis em um eclipse penumbral, geralmente. Neste caso, como a Lua entrou inteiramente na penumbra, ocorreu um eclipse do subtipo , o que é relativamente raro nos eclipses penumbrais. Nessas ocasiões, a perda de brilho e o leve escurecimento na superfície lunar fica um pouco mais acentuado. A última vez que ocorreu um eclipse desse tipo foi em , e a próxima vez será em 3 de março de 1988, quando deverá ser o maior e mais escuro eclipse penumbral do século XX. A Lua cruzou a região sul da penumbra da Terra, em nodo ascendente, dentro da constelação de Câncer, próxima às estrelas , Pollux e Castor, na constelação vizinha de Gêmeos. (pt) 1981年1月20日月食为一次在协调世界时1981年1月20日出現的半影月食。該次月食半影食分為1.039、全影食分為-0.014。 (zh) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Lunar_eclipse_from_moon-1981Jan20.png?width=300 |
| dbo:wikiPageID | 22022117 (xsd:integer) |
| dbo:wikiPageLength | 4208 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1101047616 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Solar_eclipse_of_January_26,_1990 dbr:Solar_eclipse_of_July_31,_1981 dbc:20th-century_lunar_eclipses dbr:List_of_lunar_eclipses dbc:1981_in_science dbr:List_of_20th-century_lunar_eclipses dbc:January_1981_events dbr:July_1981_lunar_eclipse dbr:Solar_eclipse_of_February_4,_1981 dbr:Solar_eclipse_of_January_16,_1972 dbr:Solar_Saros_121 dbr:Saros_(astronomy) dbc:Total_penumbral_lunar_eclipses dbr:Lunar_eclipse dbr:Lunar_Saros_114 dbr:Total_penumbral_lunar_eclipse dbr:File:Lunar_eclipse_chart_close-1981Jan20.png dbr:File:Lunar_eclipse_from_moon-1981Jan20.png dbr:File:SE1972Jan16A.png dbr:File:SE1990Jan26A.png |
| dbp:axis | 0.976200 (xsd:double) |
| dbp:date | 1981-01-20 (xsd:date) |
| dbp:gamma | -1.014100 (xsd:double) |
| dbp:greatest | 28197.0 |
| dbp:magnitude | 1.013600 (xsd:double) |
| dbp:next | July 1981 (en) |
| dbp:p | 20280.0 36110.0 |
| dbp:penumbral | 15830.0 |
| dbp:previous | August 1980 (en) |
| dbp:sarosNo | 57 (xsd:integer) |
| dbp:sarosSer | 114 (xsd:integer) |
| dbp:type | penumbral (en) |
| dbp:wikiPageUsesTemplate | dbt:Reflist dbt:Short_description dbt:Use_dmy_dates dbt:Lunar_eclipse_set_1980-1984 dbt:Infobox_lunar_eclipse dbt:LEplot1951_link dbt:Lunar-eclipse-stub dbt:Lunar_eclipses |
| dcterms:subject | dbc:20th-century_lunar_eclipses dbc:1981_in_science dbc:January_1981_events dbc:Total_penumbral_lunar_eclipses |
| rdfs:comment | 1981年1月20日月食为一次在协调世界时1981年1月20日出現的半影月食。該次月食半影食分為1.039、全影食分為-0.014。 (zh) A penumbral lunar eclipse took place on Tuesday, January 20, 1981, the first of two lunar eclipses in 1981. In a rare total penumbral eclipse, the entire Moon was partially shaded by the Earth (though none of it was in complete shadow), and the shading across the Moon should have been quite visible at maximum eclipse. The penumbral phase lasted for 4 hours and 24 minutes in all, though for most of it, the eclipse was extremely difficult or impossible to see. The moon's apparent diameter was larger because the eclipse occurred 5.2 days after perigee (Perigee on approximately 1981 Jan 15 at 03:01:56.7 UTC). (en) O eclipse lunar de 20 de janeiro de 1981 foi um eclipse penumbral, o primeiro de dois eclipses lunares do ano, e único como penumbral. Teve magnitude penumbral de 1,0136 e umbral de -0,0192. Teve duração total de quase 264 minutos. A Lua cruzou a região sul da penumbra da Terra, em nodo ascendente, dentro da constelação de Câncer, próxima às estrelas , Pollux e Castor, na constelação vizinha de Gêmeos. (pt) |
| rdfs:label | January 1981 lunar eclipse (en) Eclipse lunar de 20 de janeiro de 1981 (pt) 1981年1月20日月食 (zh) |
| owl:sameAs | freebase:January 1981 lunar eclipse yago-res:January 1981 lunar eclipse wikidata:January 1981 lunar eclipse dbpedia-pt:January 1981 lunar eclipse dbpedia-zh:January 1981 lunar eclipse https://global.dbpedia.org/id/4o331 |
| prov:wasDerivedFrom | wikipedia-en:January_1981_lunar_eclipse?oldid=1101047616&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Lunar_eclipse_chart_close-1981Jan20.png wiki-commons:Special:FilePath/Lunar_eclipse_from_moon-1981Jan20.png wiki-commons:Special:FilePath/SE1972Jan16A.png wiki-commons:Special:FilePath/SE1990Jan26A.png |
| foaf:isPrimaryTopicOf | wikipedia-en:January_1981_lunar_eclipse |
| is dbo:wikiPageWikiLink of | dbr:Solar_eclipse_of_July_31,_1981 dbr:List_of_lunar_eclipses_in_the_20th_century dbr:July_1981_lunar_eclipse dbr:Solar_eclipse_of_February_4,_1981 dbr:Lunar_Saros_114 dbr:Total_penumbral_lunar_eclipse |
| is foaf:primaryTopic of | wikipedia-en:January_1981_lunar_eclipse |
