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Statements

Subject Item
dbr:HD_218566
rdf:type
owl:Thing yago:PhysicalEntity100001930 yago:Whole100003553 yago:WikicatHenryDraperCatalogueObjects dbo:CelestialBody yago:WikicatK-typeMain-sequenceStars dbo:Star yago:Object100002684 schema:Place yago:Star109444100 yago:CelestialBody109239740 dbo:Location dbo:Place yago:NaturalObject100019128
rdfs:label
HD 218566 HD 218566 HD 218566
rdfs:comment
HD 218566は、うお座の方角に約94光年の距離にある恒星である。見かけの等級は8.6で、肉眼でみることはできないが、小型の望遠鏡があればみることができる。HD 218566の周囲では、1つの太陽系外惑星が発見されている。 Ebla eller HD 218566 är en ensam stjärna belägen i den södra delen av stjärnbilden Fiskarna. Den har en skenbar magnitud av ca 8,63 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 35,0 mas, beräknas den befinna sig på ett avstånd på ca 93 ljusår (ca 29 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -38 km/s. HD 218566 is a star in the equatorial zodiac constellation of Pisces. It has the proper name Ebla, after a kingdom in ancient Syria. With an apparent visual magnitude of 8.6, this ninth magnitude star can not be viewed with the naked eye. However, it can be readily seen even with a small telescope. It is located at a distance of 94 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −37.8 km/s.
dct:subject
dbc:K-type_main-sequence_stars dbc:Hipparcos_objects dbc:Henry_Draper_Catalogue_objects dbc:Pisces_(constellation) dbc:Durchmusterung_objects dbc:Planetary_systems_with_one_confirmed_planet
dbo:wikiPageID
34615928
dbo:wikiPageRevisionID
1118084442
dbo:wikiPageWikiLink
dbc:Durchmusterung_objects dbc:Planetary_systems_with_one_confirmed_planet dbr:Peter_Jalowiczor dbr:Projected_rotational_velocity dbr:Syria dbr:Ugarit dbr:Metallicity dbr:Keplerian_orbit dbr:Stellar_parallax dbr:Galactic_coordinate_system dbr:Effective_temperature dbc:K-type_main-sequence_stars dbr:Semi-major_axis dbr:Ugaritic_alphabet dbr:Astronomical_Unit dbc:Hipparcos_objects dbr:International_Astronomical_Union dbr:Sun dbr:Zodiac dbr:Jupiter dbc:Pisces_(constellation) dbr:Nuclear_fusion dbr:Ebla dbc:Henry_Draper_Catalogue_objects dbr:Apparent_visual_magnitude dbr:Pisces_(constellation) dbr:NameExoWorlds dbr:K-type_main_sequence_star dbr:Constellation dbr:W._M._Keck_Observatory dbr:Radial_velocity dbr:Light_year dbr:Gravitational_perturbation dbr:Star dbr:Celestial_equator dbr:Stellar_classification dbr:Space_velocity_(astronomy)
owl:sameAs
freebase:m.0j2598c yago-res:HD_218566 dbpedia-ja:HD_218566 dbpedia-sv:HD_218566 wikidata:Q5629329 n17:4knwd
dbp:wikiPageUsesTemplate
dbt:Val dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_astrometry dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_character dbt:Starbox_observe dbt:Odlist dbt:Stars_of_Pisces dbt:Short_description dbt:Starbox_reference dbt:RA dbt:DEC dbt:Reflist
dbp:absmagV
6.187
dbp:ageGyr
8.5
dbp:appmagV
8.628
dbp:bV
1.014
dbp:class
K3 V
dbp:constell
dbr:Pisces_(constellation)
dbp:epoch
J2000
dbp:metalFe
0.38
dbp:pError
0.0511
dbp:parallax
34.6603
dbp:propMoDec
–97.214
dbp:propMoRa
+631.520
dbp:rotationalVelocity
0
dbo:abstract
HD 218566は、うお座の方角に約94光年の距離にある恒星である。見かけの等級は8.6で、肉眼でみることはできないが、小型の望遠鏡があればみることができる。HD 218566の周囲では、1つの太陽系外惑星が発見されている。 Ebla eller HD 218566 är en ensam stjärna belägen i den södra delen av stjärnbilden Fiskarna. Den har en skenbar magnitud av ca 8,63 och kräver åtminstone en stark handkikare eller ett mindre teleskop för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 35,0 mas, beräknas den befinna sig på ett avstånd på ca 93 ljusår (ca 29 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -38 km/s. HD 218566 is a star in the equatorial zodiac constellation of Pisces. It has the proper name Ebla, after a kingdom in ancient Syria. With an apparent visual magnitude of 8.6, this ninth magnitude star can not be viewed with the naked eye. However, it can be readily seen even with a small telescope. It is located at a distance of 94 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −37.8 km/s. HD 218566 is a smaller star than the Sun, with about 81% of the Sun's mass and 86% of the radius of the Sun. It is a K-type main sequence star with a stellar classification of K3 V that is generating energy by the nuclear fusion of hydrogen at its core. HD 218556 is radiating around 35% of the luminosity of the Sun from its outer envelope at an effective temperature of 4,849 K. This heat gives the star the characteristic orange-hued glow of a K-type star. Compared to the Sun, this star has an unusually high abundance of elements other than hydrogen and helium, what astronomers term the metallicity. Based upon the abundance of iron, the metallicity is 2.4 times as high as in the Sun. It is much older than the Sun, with estimates of its age ranging from 8.5 to 11.5 billion years. It appears to have a negligible rate of spin as its projected rotational velocity is too small to measure. This star belongs to the thick disk population of the Milky Way. In the galactic coordinate system, it has space velocity components of [U, V, W] = [77, –61, –8] km s−1. HD 218556 is following an orbit through the galaxy with an eccentricity of 0.36±0.01 that carries it as close as 14.3 kly (4.4 kpc) and as far as 30.3 kly (9.3 kpc) from the Galactic Center. The orbital tilt carries this star as much as 0.6 kly (0.18 kpc) from the galactic plane. Based upon high resolution measurements performed at the W. M. Keck Observatory and analysis performed upon these measurements by amateur astronomer Peter Jalowiczor, HD 218566 shows cyclical variations in radial velocity that suggest gravitational perturbation by orbiting companion. This candidate object is estimated to be orbiting the parent star with a period of 225.7±0.4 days at an eccentricity of 0.3 ± 0.1. The semi-major axis for this Keplerian orbit is an estimated 0.6873 Astronomical Units. Because the inclination of the orbit remains unknown, the mass of this companion has not been determined. However, it can be constrained to have a mass of at least 21% the mass of Jupiter. There is no evidence of additional companions in the system. The name Ebla was selected in the NameExoWorlds campaign by Syria, during the 100th anniversary of the IAU. Ebla was one of the earliest kingdoms in Syria. At this time, the planet HD 218566 b was named Ugarit. Ugarit was a city where its scribes devised the Ugaritic alphabet around 1400 B.C.
gold:hypernym
dbr:Star
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9629
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