8 Aquilae (original) (raw)
8 de l'Àguila (8 Aquilae) és una estrella de la constel·lació de l'Àguila. Té una magnitud aparent de 6,08.
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| dbo:abstract | 8 de l'Àguila (8 Aquilae) és una estrella de la constel·lació de l'Àguila. Té una magnitud aparent de 6,08. (ca) 8 Aquilae is a star in the equatorial constellation of Aquila, located 271 light years away from the Sun. 8 Aquilae is the Flamsteed designation. It can be viewed with the naked eye in good seeing conditions, appearing as a dim, yellow-white hued star with an apparent visual magnitude of 6.08. The star is moving further from the Earth with a heliocentric radial velocity of +12 km/s. Abt and Morrell (1995) found a stellar classification of F0 IV for this star, suggesting it is an F-type subgiant. In their 2010 study, Fox Machado et al. assigned a class of F2 III, which matches an evolved giant star. Despite the spectral classifications, evolutionary models place the star towards the end of its main sequence life, with an age of about a billion years. 8 Aquilae is a Delta Scuti variable with at least three overlapping pulsation frequencies, although the total amplitude of its brightness variations is only about 0.02 magnitudes. It has a relatively high rotation rate, showing a projected rotational velocity of 105 km/s. It has 1.6 times the mass of the Sun and is radiating 19 times the Sun's luminosity from its photosphere at an effective temperature of about 7,395 K. (en) 8 Aquilae è una stella gigante bianco-gialla di magnitudine 6,08 situata nella costellazione dell'Aquila. Dista 276 anni luce dal sistema solare. (it) 8 Aquilae, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den mellersta delen av stjärnbilden Örnen. Den har en genomsnittlig skenbar magnitud på ca 6,08 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 12,3 mas, beräknas den befinna sig på ett avstånd på ca 266 ljusår (ca 82 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 12 km/s. (sv) 天鷹座8，又名BD-03 4392，HD 174589、SAO 142706、HR 7101，是天鷹座的一颗恒星，视星等为6.1，位于銀經29.97，銀緯-1.5，其B1900.0坐标为赤經18h 46m 7s，赤緯-3° -1.5′ 5″。 (zh) |
| dbo:thumbnail | wiki-commons:Special:FilePath/8AqlLightCurve.png?width=300 |
| dbo:wikiPageExternalLink | http://aladin.u-strasbg.fr/AladinPreview%3F-c=18+51+22.1576-03+19+04.284&ident=*+++8+Aql&submit=Aladin+previewer http://webviz.u-strasbg.fr/viz-bin/VizieR-S%3FHR%207101 |
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| dbp:absmagV | 1.270000 (xsd:double) |
| dbp:ageMyr | 959 (xsd:integer) |
| dbp:appmagV | 6.080000 (xsd:double) |
| dbp:class | F0 IV or F2 III (en) |
| dbp:constell | dbr:Aquila_(constellation) |
| dbp:epoch | J2000 (en) |
| dbp:luminosity | 18.890000 (xsd:double) |
| dbp:mass | 1.600000 (xsd:double) |
| dbp:metalFe | 0.140000 (xsd:double) |
| dbp:pError | 0.026800 (xsd:double) |
| dbp:parallax | 12.054900 (xsd:double) |
| dbp:propMoDec | −21.411 (en) |
| dbp:propMoRa | +2.019 (en) |
| dbp:radialV | +11.8 (en) |
| dbp:radius | 3 (xsd:integer) |
| dbp:rotationalVelocity | 105 (xsd:integer) |
| dbp:uB | +0.06 (en) |
| dbp:variable | dbr:Delta_Scuti_variable |
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| dcterms:subject | dbc:Aquila_(constellation) dbc:Bright_Star_Catalogue_objects dbc:Delta_Scuti_variables dbc:Durchmusterung_objects dbc:F-type_giants dbc:F-type_subgiants dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Objects_with_variable_star_designations |
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| rdfs:comment | 8 de l'Àguila (8 Aquilae) és una estrella de la constel·lació de l'Àguila. Té una magnitud aparent de 6,08. (ca) 8 Aquilae è una stella gigante bianco-gialla di magnitudine 6,08 situata nella costellazione dell'Aquila. Dista 276 anni luce dal sistema solare. (it) 8 Aquilae, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den mellersta delen av stjärnbilden Örnen. Den har en genomsnittlig skenbar magnitud på ca 6,08 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 12,3 mas, beräknas den befinna sig på ett avstånd på ca 266 ljusår (ca 82 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 12 km/s. (sv) 天鷹座8，又名BD-03 4392，HD 174589、SAO 142706、HR 7101，是天鷹座的一颗恒星，视星等为6.1，位于銀經29.97，銀緯-1.5，其B1900.0坐标为赤經18h 46m 7s，赤緯-3° -1.5′ 5″。 (zh) 8 Aquilae is a star in the equatorial constellation of Aquila, located 271 light years away from the Sun. 8 Aquilae is the Flamsteed designation. It can be viewed with the naked eye in good seeing conditions, appearing as a dim, yellow-white hued star with an apparent visual magnitude of 6.08. The star is moving further from the Earth with a heliocentric radial velocity of +12 km/s. (en) |
| rdfs:label | 8 de l'Àguila (ca) 8 Aquilae (en) 8 Aquilae (it) 8 Aquilae (sv) 天鷹座8 (zh) |
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| prov:wasDerivedFrom | wikipedia-en:8_Aquilae?oldid=1107156371&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/8AqlLightCurve.png |
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| is dbo:wikiPageRedirects of | dbr:HD_174589 dbr:HIC_92524 dbr:HIP_92524 dbr:HR_7101 dbr:SAO_142706 |
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