About: HD 194012

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HD 194012 (HR 7793; Gliese 789) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.15, making it visible to the naked eye under ideal conditions. The star is relatively close at a distance of only 85 light years but is receding with a heliocentric radial velocity of 4.5 km/s. A 2010 paper has identified a candidate substellar companion 12.78″ away along a position angle of 67.9°. HD 194012 has been examined for infrared excess suggesting a debris disk but none was found.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	HD 194012 (en) HD 194012 (zh)
rdfs:comment	HD 194012，又名BD+14 4275，SAO 106042、HR 7793，是一颗恒星，视星等为6.17，位于銀經56.82，銀緯-12.71，其B1900.0坐标为赤經20h 18m 12.4s，赤緯+14° -12.71′ 51″。 (zh) HD 194012 (HR 7793; Gliese 789) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.15, making it visible to the naked eye under ideal conditions. The star is relatively close at a distance of only 85 light years but is receding with a heliocentric radial velocity of 4.5 km/s. A 2010 paper has identified a candidate substellar companion 12.78″ away along a position angle of 67.9°. HD 194012 has been examined for infrared excess suggesting a debris disk but none was found. (en)
foaf:name	HD194012 (en)
dcterms:subject	Bright Star Catalogue objects Delphinus (constellation) Durchmusterung objects F-type main-sequence stars Gliese and GJ objects Henry Draper Catalogue objects High-proper-motion stars Hipparcos objects
Wikipage page ID	71040894 (xsd:integer)
Wikipage revision ID	1121993947 (xsd:integer)
Link from a Wikipage to another Wikipage	Metallicity Delphinus Debris disk Infrared excess Stellar classification Bright Star Catalogue objects Delphinus (constellation) Durchmusterung objects F-type main-sequence stars Gliese and GJ objects Henry Draper Catalogue objects High-proper-motion stars Hipparcos objects Constellation Naked eye Photosphere Effective temperature Apparent magnitude Light year Luminosity Star Henry Draper Catalogue International Celestial Reference System J2000.0 Billion years Sun Position angle Radial velocity F-type main-sequence star Mass of the Sun Projected rotational velocity
sameAs	HD 194012 HD 194012 HD 194012
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_observe dbt:Starbox_reference dbt:Stars_of_Delphinus dbt:Val dbt:± dbt:DEC dbt:Odlist dbt:RA
absmag v	+4.06 (en)
age gyr	1.060000 (xsd:double)
appmag v	6.150000 (xsd:double)
b-v	+0.51 (en)
class	F7 V (en)
constell	Delphinus
epoch	J2000.0 (en)
gravity	4.360000 (xsd:double)
luminosity	1.900000 (xsd:double)
mass	1.210000 (xsd:double)
metal fe	−0.06 (en)
p error	0.023300 (xsd:double)
parallax	38.400900 (xsd:double)
prop mo dec	−7.143 (en)
prop mo ra	+78.997 (en)
radial v	4.500000 (xsd:double)
radius	1.180000 (xsd:double)
rotational velocity	5 (xsd:integer)
temperature	6301 (xsd:integer)
u-b	−0.07 (en)
has abstract	HD 194012 (HR 7793; Gliese 789) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.15, making it visible to the naked eye under ideal conditions. The star is relatively close at a distance of only 85 light years but is receding with a heliocentric radial velocity of 4.5 km/s. HD 194012 has a stellar classification of F7 V, indicating that it is an ordinary F-type main-sequence star. It has 121% the mass of the Sun and is estimated to be a billion years old, spinning with a projected rotational velocity of 5 km/s. The star's diameter is 118% that of the Sun and shines with a luminosity of 1.9 L☉ from its photosphere at an effective temperature of 6,301 K, giving a yellow white hue. HD 194012's metallicity is calculated to be 87% that of the Sun. A 2010 paper has identified a candidate substellar companion 12.78″ away along a position angle of 67.9°. HD 194012 has been examined for infrared excess suggesting a debris disk but none was found. (en) HD 194012，又名BD+14 4275，SAO 106042、HR 7793，是一颗恒星，视星等为6.17，位于銀經56.82，銀緯-12.71，其B1900.0坐标为赤經20h 18m 12.4s，赤緯+14° -12.71′ 51″。 (zh)
prov:wasDerivedFrom	wikipedia-en:HD_194012?oldid=1121993947&ns=0
page length (characters) of wiki page	9975 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:HD_194012
is Link from a Wikipage to another Wikipage of	List of stars in Delphinus
is foaf:primaryTopic of	wikipedia-en:HD_194012

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