About: AK Leporis

An Entity of Type: star, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

AK Leporis is a variable star in the southern constellation of Lepus the hare. It has an apparent visual magnitude of 6.141, so, according to the Bortle scale, it is faintly visible from rural skies at night. This star forms a visual double with Gamma Leporis—the two have an angular separation of 97″, making them difficult to separate with the naked eye even under the best conditions. Both Gamma Leporis and AK Leporis are members of the Ursa Major Moving Group of stars that share a common motion through space.

Property Value
dbo:abstract
  • AK Leporis is a variable star in the southern constellation of Lepus the hare. It has an apparent visual magnitude of 6.141, so, according to the Bortle scale, it is faintly visible from rural skies at night. This star forms a visual double with Gamma Leporis—the two have an angular separation of 97″, making them difficult to separate with the naked eye even under the best conditions. Both Gamma Leporis and AK Leporis are members of the Ursa Major Moving Group of stars that share a common motion through space. This is a BY Draconis variable star that undergoes slight brightness variations due to stellar activity. Differential rotation causes changes to the periodicity of the variation depending on the latitude of the activity. X-ray emission has been detected from AK Leporis, and it is located at or near a radio source. Infrared observation of this star shows a large excess at a wavelength of 24 µm. This may be explained by the proximity of Gamma Leporis to the line of sight, or there may be a red dwarf companion or a dust disc. There is no excess observed at 70 µm. (en)
  • AK Leporis (en abrégé AK Lep) est une étoile naine orange de la constellation australe du Lièvre. Brillant d'une magnitude apparente de 6,141, elle est tout juste visible à l'œil nu dans un ciel rural d'après l'échelle de Bortle. Distante de ∼29 a.l. (∼8,89 pc) de la Terre, elle forme avec l'étoile de troisième magnitude Gamma Leporis une binaire visuelle. Les deux étoiles sont séparées d'une distance angulaire de 97 secondes d'arc, ce qui les rend difficiles à séparer à l'œil nu même dans les meilleurs conditions possibles. Elles sont membres du courant d'étoiles de la Grande Ourse, qui est une association d'étoiles partageant un mouvement commun dans l'espace. (fr)
  • 天兔座AK是南天星座天兔座中的一顆變星。它的視星等為6.141等,因此,根據波特爾暗空分類法,在夜間它從鄉村天空中隱約可見。這顆恆星與廁三形成目視雙星:兩者的角距離為97",使得即使在最佳條件下也很難用肉眼將它們分開。廁三和天兔座AK都是大熊座移動星群的成員,它們在太空中有著相同的自行。 這是一顆天龍座BY型變星,由於恆星的活動而經歷亮度的變化。差異自轉導致變化週期取決於緯度活動的變化。已經在天兔座AK檢測到X射線發射,它位於電波源或附近。 對這顆變星的紅外線觀測顯示,在24μm的波長處有大量過量。這可能是由於廁三靠近視線,或者可能存在紅矮星伴星或塵埃盤。但在70μm處沒有觀察到過量。 (zh)
dbo:thumbnail
dbo:wikiPageID
  • 46299965 (xsd:integer)
dbo:wikiPageLength
  • 8126 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1111202510 (xsd:integer)
dbo:wikiPageWikiLink
dbp:absmagV
  • 6.310000 (xsd:double)
dbp:ageGyr
  • 0.900000 (xsd:double)
dbp:appmagV
  • 6.141000 (xsd:double)
dbp:bV
  • +0.96 (en)
dbp:class
  • K2V (en)
dbp:constell
dbp:epoch
  • J2000 (en)
dbp:luminosity
  • 0.300000 (xsd:double)
dbp:mass
  • 0.800000 (xsd:double)
dbp:pError
  • 0.015100 (xsd:double)
dbp:parallax
  • 112.466100 (xsd:double)
dbp:propMoDec
  • −352.606 (en)
dbp:propMoRa
  • −304.905 (en)
dbp:radius
  • 0.800000 (xsd:double)
dbp:uB
  • +0.74 (en)
dbp:variable
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • 天兔座AK是南天星座天兔座中的一顆變星。它的視星等為6.141等,因此,根據波特爾暗空分類法,在夜間它從鄉村天空中隱約可見。這顆恆星與廁三形成目視雙星:兩者的角距離為97",使得即使在最佳條件下也很難用肉眼將它們分開。廁三和天兔座AK都是大熊座移動星群的成員,它們在太空中有著相同的自行。 這是一顆天龍座BY型變星,由於恆星的活動而經歷亮度的變化。差異自轉導致變化週期取決於緯度活動的變化。已經在天兔座AK檢測到X射線發射,它位於電波源或附近。 對這顆變星的紅外線觀測顯示,在24μm的波長處有大量過量。這可能是由於廁三靠近視線,或者可能存在紅矮星伴星或塵埃盤。但在70μm處沒有觀察到過量。 (zh)
  • AK Leporis is a variable star in the southern constellation of Lepus the hare. It has an apparent visual magnitude of 6.141, so, according to the Bortle scale, it is faintly visible from rural skies at night. This star forms a visual double with Gamma Leporis—the two have an angular separation of 97″, making them difficult to separate with the naked eye even under the best conditions. Both Gamma Leporis and AK Leporis are members of the Ursa Major Moving Group of stars that share a common motion through space. (en)
  • AK Leporis (en abrégé AK Lep) est une étoile naine orange de la constellation australe du Lièvre. Brillant d'une magnitude apparente de 6,141, elle est tout juste visible à l'œil nu dans un ciel rural d'après l'échelle de Bortle. (fr)
rdfs:label
  • AK Leporis (en)
  • AK Leporis (fr)
  • AK Leporis (sv)
  • 天兔座AK (zh)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • AK Leporis (en)
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License