About: HD 39901

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HD 39901 is an orange hued star located in the constellation Columba. It is also called HR 2069, which is the star's Bright Star Catalog designation. Eggen (1989) lists it as a member of the old disk population.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	HD 39901 (en) HD 39901 (sv) HD 39901 (zh)
rdfs:comment	HD 39901 är en ensam stjärna i den södra delen av stjärnbilden Duvan. Den har en skenbar magnitud av ca 6,56 och kräver åtminstone en handkikare för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 5,1 mas, beräknas den befinna sig på ett avstånd på ca 646 ljusår (ca 198 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -10 km/s. (sv) HD 39901，又名CD-42 2205，SAO 217599、HR 2069，是一颗恒星，视星等为6.55，位于銀經249.32，銀緯-28.29，其B1900.0坐标为赤經5h 50m 19.7s，赤緯-42° -28.29′ 29″。 (zh) HD 39901 is an orange hued star located in the constellation Columba. It is also called HR 2069, which is the star's Bright Star Catalog designation. Eggen (1989) lists it as a member of the old disk population. (en)
foaf:name	HD39901 (en)
dct:subject	Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects K-type giants Columba (constellation)
Wikipage page ID	53025364 (xsd:integer)
Wikipage revision ID	1121781137 (xsd:integer)
Link from a Wikipage to another Wikipage	Metallicity Stellar classification Bright Star Catalog Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects K-type giants Columba (constellation) Constellation Mass Naked eye Photosphere Effective temperature Apparent magnitude Light year Star Henry Draper Catalogue Parallax Solar radius Absolute magnitude International Celestial Reference System J2000.0 Columba (constellation) Kelvin Sun Solar System Radial velocity Magnitude (astronomy) Gaia spacecraft Projected rotational velocity Red giant star Luminosity of the Sun
sameAs	HD 39901 HD 39901 HD 39901 HD 39901 HD 39901
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:Val dbt:± dbt:DEC dbt:Odlist dbt:RA dbt:Stars_of_Columba
absmag v	−0.03 (en)
appmag v	6.540000 (xsd:double)
b-v	+1.37 (en)
class	K3 III (en)
constell	Columba (constellation)
epoch	J2000.0 (en)
gravity	1.870000 (xsd:double)
mass	1.270000 (xsd:double)
metal fe	+0.08 (en)
p error	0.015200 (xsd:double)
parallax	5.107600 (xsd:double)
prop mo dec	+11.405 (en)
prop mo ra	+5.109 (en)
radial v	−10.3 (en)
radius	21.900000 (xsd:double)
rotational velocity	<1.6 (en)
temperature	4373 (xsd:integer)
has abstract	HD 39901 is an orange hued star located in the constellation Columba. It is also called HR 2069, which is the star's Bright Star Catalog designation. Eggen (1989) lists it as a member of the old disk population. Despite the HR designation, the object has an apparent magnitude of 6.54, slightly past the limit for the naked eye visibility. As a result, it is barely visible to the unaided eye in the best conditions. Parallax measurements from the Gaia spacecraft place the object 639 light years away. It is approaching the Solar System with a heliocentric radial velocity of −10.3 km/s. At that distance, HD 39901's brightness is diminished by 0.33 magnitudes due to interstellar dust. It has an absolute magnitude of −0.03. This is an evolved red giant star with a stellar classification of K3 III. It has a comparable mass to the Sun but has expanded to 21.9 times the latter's girth. It radiates 143 times the luminosity of the Sun from its photosphere at an effective temperature of 4,373 K. HD 39901 is slightly enriched in heavy elements with a metallicity 120% that of the Sun's. Like most giants, it spins slowly, having a projected rotational velocity lower than 1.6 km/s. (en) HD 39901 är en ensam stjärna i den södra delen av stjärnbilden Duvan. Den har en skenbar magnitud av ca 6,56 och kräver åtminstone en handkikare för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 5,1 mas, beräknas den befinna sig på ett avstånd på ca 646 ljusår (ca 198 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -10 km/s. (sv) HD 39901，又名CD-42 2205，SAO 217599、HR 2069，是一颗恒星，视星等为6.55，位于銀經249.32，銀緯-28.29，其B1900.0坐标为赤經5h 50m 19.7s，赤緯-42° -28.29′ 29″。 (zh)
prov:wasDerivedFrom	wikipedia-en:HD_39901?oldid=1121781137&ns=0
page length (characters) of wiki page	11185 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:HD_39901
is Link from a Wikipage to another Wikipage of	HIP 27835 HR 2069

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