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Delta2 Telescopii is a blue-white-hued binary star system in the southern constellation of Telescopium. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.05. The distance to this system, as determined with an annual parallax shift of 2.73 mas, is roughly 1,200 light-years. At that distance, the visual magnitude of the star is diminished by an extinction of 0.36 due to interstellar dust. The pair have an orbital period of 21.7 days and an eccentricity of 0.22. For the merged stellar classification, Houk (1978) gives B3 IV/V, while Levato (1975) lists a more evolved class of B3 III. It appears to be a relatively young system, barely 40 million years old.

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  • Delta2 Telescopii (en)
  • Delta2 Telescopii (pt)
  • Delta2 Telescopii (sv)
rdfs:comment
  • Delta2 Telescopii is a blue-white-hued binary star system in the southern constellation of Telescopium. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.05. The distance to this system, as determined with an annual parallax shift of 2.73 mas, is roughly 1,200 light-years. At that distance, the visual magnitude of the star is diminished by an extinction of 0.36 due to interstellar dust. The pair have an orbital period of 21.7 days and an eccentricity of 0.22. For the merged stellar classification, Houk (1978) gives B3 IV/V, while Levato (1975) lists a more evolved class of B3 III. It appears to be a relatively young system, barely 40 million years old. (en)
  • Delta2 Telescopii (17 Telescopii) é uma estrela na direção da constelação de Telescopium. Possui uma ascensão reta de 18h 32m 01.94s e uma declinação de −45° 45′ 26.5″. Sua magnitude aparente é igual a 5.07. Considerando sua distância de 1116 anos-luz em relação à Terra, sua magnitude absoluta é igual a −2.60. Pertence à classe espectral B3III. (pt)
  • Delta2 Telescopii (δ2 Telescopii, förkortat Delta2 Tel, δ2 Tel) som är stjärnans Bayerbeteckning, är en dubbelstjärna belägen i den nordvästra delen av stjärnbilden Kikaren. Den har en skenbar magnitud på 5,05 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 2,7 mas, beräknas den befinna sig på ett avstånd på ca 1 200 ljusår (ca 370 parsek) från solen. På det beräknade avståndet minskar stjärnans skenbara magnitud med 0,36 enheter på grund av skymning genom interstellärt stoft. (sv)
foaf:name
  • Delta2 Telescopii (en)
dcterms:subject
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absmag v
  • −1.46 (en)
appmag v
b-v
  • −0.12 (en)
class
  • B3 IV/V or B3 III (en)
constell
eccentricity
epoch
equinox
  • J2000.0 (en)
k
luminosity bolometric
p error
parallax
periarg
periastron
period unitless
prop mo dec
  • −10.23 (en)
prop mo ra
  • +0.16 (en)
rotational velocity
temperature
u-b
  • −0.52 (en)
has abstract
  • Delta2 Telescopii is a blue-white-hued binary star system in the southern constellation of Telescopium. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.05. The distance to this system, as determined with an annual parallax shift of 2.73 mas, is roughly 1,200 light-years. At that distance, the visual magnitude of the star is diminished by an extinction of 0.36 due to interstellar dust. The pair have an orbital period of 21.7 days and an eccentricity of 0.22. For the merged stellar classification, Houk (1978) gives B3 IV/V, while Levato (1975) lists a more evolved class of B3 III. It appears to be a relatively young system, barely 40 million years old. (en)
  • Delta2 Telescopii (17 Telescopii) é uma estrela na direção da constelação de Telescopium. Possui uma ascensão reta de 18h 32m 01.94s e uma declinação de −45° 45′ 26.5″. Sua magnitude aparente é igual a 5.07. Considerando sua distância de 1116 anos-luz em relação à Terra, sua magnitude absoluta é igual a −2.60. Pertence à classe espectral B3III. (pt)
  • Delta2 Telescopii (δ2 Telescopii, förkortat Delta2 Tel, δ2 Tel) som är stjärnans Bayerbeteckning, är en dubbelstjärna belägen i den nordvästra delen av stjärnbilden Kikaren. Den har en skenbar magnitud på 5,05 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 2,7 mas, beräknas den befinna sig på ett avstånd på ca 1 200 ljusår (ca 370 parsek) från solen. På det beräknade avståndet minskar stjärnans skenbara magnitud med 0,36 enheter på grund av skymning genom interstellärt stoft. (sv)
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