About: LSS 4067

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LSS 4067, also known as CD−38°11748, is an O-type blue supergiant star located in the constellation Scorpius, very close to the galactic plane. It is part of the open cluster HM 1, although its distance is not well known; it may be anywhere between 9,500 and 12,700 light years (2900 to 3900 parsecs) away from the Earth. Despite being a blue supergiant, it is extremely reddened by interstellar extinction, so its apparent magnitude is brighter for longer-wavelength passbands. Without the extinction, it is estimated that LS 4067 would be 5.8 magnitudes brighter, a naked eye star with an apparent magnitude of 5.3.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	LSS 4067 (en)
rdfs:comment	LSS 4067, also known as CD−38°11748, is an O-type blue supergiant star located in the constellation Scorpius, very close to the galactic plane. It is part of the open cluster HM 1, although its distance is not well known; it may be anywhere between 9,500 and 12,700 light years (2900 to 3900 parsecs) away from the Earth. Despite being a blue supergiant, it is extremely reddened by interstellar extinction, so its apparent magnitude is brighter for longer-wavelength passbands. Without the extinction, it is estimated that LS 4067 would be 5.8 magnitudes brighter, a naked eye star with an apparent magnitude of 5.3. (en)
foaf:name	LSS 4067 (en)
dcterms:subject	Double stars Durchmusterung objects Emission-line stars O-type supergiants Scorpius (constellation) 2MASS objects
Wikipage page ID	37690797 (xsd:integer)
Wikipage revision ID	1090579990 (xsd:integer)
Link from a Wikipage to another Wikipage	Nitrogen Passband List of most luminous stars Double stars Durchmusterung objects Emission-line stars O-type supergiants Scorpius (constellation) Constellation Cordoba Durchmusterung O-type star Effective temperature Apparent magnitude Light year Star Spectrum Galactic plane Helium Absolute magnitude 2MASS 2MASS objects Earth Parsec Open cluster Emission line HM 1 J2000 Bolometric luminosity Blue supergiant Spectral type Wolf-Rayet star Tycho-2 Catalogue Scorpius (constellation) Surface gravity Interstellar extinction Gaia Data Release 2
sameAs	LSS 4067 LSS 4067 LSS 4067
dbp:wikiPageUsesTemplate	dbt:Cn dbt:Reflist 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_Scorpius dbt:Val dbt:DEC dbt:RA
dist ly	9500 (xsd:integer)
age myr	1.100000 (xsd:double)
appmag v	11.440000 (xsd:double)
b-v	+1.49 (en)
class	O4.5Ifpe (en)
constell	Scorpius (constellation)
dist pc	2900 (xsd:integer)
epoch	J2000
gravity	3.610000 (xsd:double)
luminosity	802000 (xsd:integer)
mass	120 (xsd:integer)
prop mo dec	−6.6 (en)
prop mo ra	−2.5 (en)
radial v	−51.0 (en)
radius	18.650000 (xsd:double)
rotational velocity	<107 (en)
temperature	40000 (xsd:integer)
u-b	+0.37 (en)
v-r	+1.28 (en)
has abstract	LSS 4067, also known as CD−38°11748, is an O-type blue supergiant star located in the constellation Scorpius, very close to the galactic plane. It is part of the open cluster HM 1, although its distance is not well known; it may be anywhere between 9,500 and 12,700 light years (2900 to 3900 parsecs) away from the Earth. Despite being a blue supergiant, it is extremely reddened by interstellar extinction, so its apparent magnitude is brighter for longer-wavelength passbands. Without the extinction, it is estimated that LS 4067 would be 5.8 magnitudes brighter, a naked eye star with an apparent magnitude of 5.3. Although the Gaia Data Release 2 parallax for LS 4067 is negative, a likely distance can be calculated from it. The star is thought to be between 8,202 and 14,084 pc away, statistically most likely at 10,170 pc. It was catalogued as a member of the faint cluster Havlen-Moffat No. 1, but is no longer thought to be a member. The cluster lies about 3,300 pc. LSS 4067 has an absolute bolometric magnitude of −11.4, making it one of the most luminous stars known. Indeed, many of the hottest and most luminous stars known are O-type supergiants, or Wolf-Rayet stars. LSS 4067 has an unusual spectrum, with various emission lines including N III and He II emission lines, thus the "f" in its spectral type. Because of this unusual spectrum, classifying the star or deducing its properties has proved relatively difficult: for example, the effective temperature is predicted to be too cool and the surface gravity too high. (en)
prov:wasDerivedFrom	wikipedia-en:LSS_4067?oldid=1090579990&ns=0
page length (characters) of wiki page	7354 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:LSS_4067
is Link from a Wikipage to another Wikipage of	List of most massive stars HM 1
is foaf:primaryTopic of	wikipedia-en:LSS_4067

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