About: HD 204521

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

HD 204521 is a star in the northern constellation of Cepheus. In the sky it positioned just to the west of the magnitude 3.2 star Beta Cephei (β Cep). This object has a yellow hue similar to the Sun but is too faint to be visible to the naked eye with an apparent visual magnitude of 7.26. It is located at a distance of 86 light years from the Sun based on parallax, and has an absolute magnitude of 5.15. The star is drifting closer with a radial velocity of −77 km/s, and is predicted to come to within 7.96 light-years in 334,000 years. At that distance the star can have a relatively small perturbing effect on comets in the Oort cloud.

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  • HD 204521 is a star in the northern constellation of Cepheus. In the sky it positioned just to the west of the magnitude 3.2 star Beta Cephei (β Cep). This object has a yellow hue similar to the Sun but is too faint to be visible to the naked eye with an apparent visual magnitude of 7.26. It is located at a distance of 86 light years from the Sun based on parallax, and has an absolute magnitude of 5.15. The star is drifting closer with a radial velocity of −77 km/s, and is predicted to come to within 7.96 light-years in 334,000 years. At that distance the star can have a relatively small perturbing effect on comets in the Oort cloud. This is an ordinary G-type main-sequence star with a stellar classification of G0V, indicating that it is generating energy through core hydrogen fusion. It is roughly 8 billion years old and appears metal-deficient. The mass of this star appears to be at or below that of the Sun, and it is radiating 86% of the Sun's luminosity from its photosphere at an effective temperature of 5,699 K. (en)
  • HD 240521 är en ensam stjärna, belägen i den mellersta delen av stjärnbilden Cepheus. Den har en skenbar magnitud av ca 7,26 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 37,9 mas, beräknas den befinna sig på ett avstånd på ca 86 ljusår (ca 26,4 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -77 km/s och förutspås komma inom 7,96 ljusår om 334 000 år. På det avståndet kan stjärnan ha en relativt liten men dock störande effekt på kometer i Oort-molnet. (sv)
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  • 5.150000 (xsd:double)
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  • 7.260000 (xsd:double)
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  • G0V (en)
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  • J2000 (en)
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  • 0.860000 (xsd:double)
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  • or 0.997 (en)
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  • 0.027900 (xsd:double)
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  • 37.913100 (xsd:double)
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  • +39.564 (en)
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  • +40.601 (en)
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  • HD 240521 är en ensam stjärna, belägen i den mellersta delen av stjärnbilden Cepheus. Den har en skenbar magnitud av ca 7,26 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 37,9 mas, beräknas den befinna sig på ett avstånd på ca 86 ljusår (ca 26,4 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -77 km/s och förutspås komma inom 7,96 ljusår om 334 000 år. På det avståndet kan stjärnan ha en relativt liten men dock störande effekt på kometer i Oort-molnet. (sv)
  • HD 204521 is a star in the northern constellation of Cepheus. In the sky it positioned just to the west of the magnitude 3.2 star Beta Cephei (β Cep). This object has a yellow hue similar to the Sun but is too faint to be visible to the naked eye with an apparent visual magnitude of 7.26. It is located at a distance of 86 light years from the Sun based on parallax, and has an absolute magnitude of 5.15. The star is drifting closer with a radial velocity of −77 km/s, and is predicted to come to within 7.96 light-years in 334,000 years. At that distance the star can have a relatively small perturbing effect on comets in the Oort cloud. (en)
rdfs:label
  • HD 204521 (en)
  • HD 204521 (sv)
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