Achernar.md

absolute_magnitude	-2.77
age_estimated_by_a_dating_method	37.3
apparent_magnitude	0.46
catalog_code	[JE82] 39 2MASS J01374284-5714119 70 Eri alf Eri ALS 16724 CPC 20 447 FK5 54 GC 1979 GCRV 916 GSC 08478-01395 HD 10144 HIC 7588 HIP 7588 HR 472 IRAS 01358-5729 JP11 517 N30 335 NSV 15353 PLX 344 PLX 344.00 PPM 331199 ROT 233 SAO 232481 TD1 938 TIC 230981971 TYC 8478-1395-1 UBV 1700 UBV M 8330 uvby98 100010144 WEB 1623 α Eri
Commons_category	Achernar
confidential	public
constellation	[[_Standards/WikiData/WD~Eridanus,10433|WD~Eridanus,10433]]
declination	-57.236752806
declination_component_of_proper_motion	-38.24
distance_from_Earth	44.0917107583774
effective_temperature	15000
flattening	0.75
has_id_wikidata	Q12183
image	http://commons.wikimedia.org/wiki/Special:FilePath/Position%20Alpha%20Eri.png
instance_of	[[_Standards/WikiData/WD~rotating_variable_star,2168098|WD~rotating_variable_star,2168098]] [[_Standards/WikiData/WD~near_IR_source,67206785|WD~near_IR_source,67206785]] [[_Standards/WikiData/WD~UV_emission_source,71798788|WD~UV_emission_source,71798788]] [[_Standards/WikiData/WD~binary_star,50053|WD~binary_star,50053]]
isDeleted	false
isReadOnly	false
location	-57.24 -24.425 90
luminosity	1076
mass	6.7
parallax	23.39
radial_velocity	18.6
radius	7.3
right_ascension	24.428522833
right_ascension_component_of_proper_motion	87
spectral_class	B6Vpe
SpocWebEntityId	27239
stellar_rotational_velocity	260
surface_gravity	3980
tags	astro/Star
type	Star
type_of_variable_star	[[_Standards/WikiData/WD~Lambda_Eridani_variable,4350564|WD~Lambda_Eridani_variable,4350564]]
dv_star-class	B4
dv_star-class-id	28188
dv_has_	name name_ place_ value_for_ Achernar af ar as ast az be be_tarask bg bn bpy bs ca cs da de dv el en es et eu fa fi fr ga he hi hu hy id it ja kk ko ku la lb lt mi mk ml ms nb nds nl nn oc os pl pnb pt ro ru sk sr sv tr tt uk vi war wuu yue zh zh_cn zh_hans zh_hant Achernar السلبار অগ্ৰনদ Achernar Əxrənnəhr Ахернар Ахэрнар Ахернар নদীমুখ নদীমুখ Ahernar Achernar Achernar Achernar Achernar Achernar Αχερνάρ Achernar Achernar Achernar Achernar آخرالنهر Achernar Achernar Achernar אכרנר आकरनार तारा Achernar Ախերնար Alpha Eridani Achernar アケルナル Ахернар 아케르나르 Alfaya Çemî Achernar Achernar Achernaras Marere-o-tonga Ахернар അകെർനർ Achernar Achernar Achernar Achernar Achernar Achernar Ахернар Achernar آخرنہر Achernar Achernar Ахернар Achernar Ahernar Achernar Ağız Ахирнәр Ахернар Achernar Achernar 水委一 水委一 水委一 水委一 水委一 水委一 altitude_ longitude latitude longitude_ latitude_ ly 90 24.425 -57.24 velocity 0.013 velocity -0.03 mass_ brightness_ min max 5 5
dv_Zodiac-index	1
dv_ZodiacId	28118
dv_NextStarId	27615
dv_is_	same_as [[../../../WikiData/WD~Achernar,12183|WD~Achernar,12183]]
dv_has_name	Achernar
dv_has_place_altitude_ly	90
dv_has_place_longitude	24.425
dv_has_place_latitude	-57.24
dv_has_place_longitude_velocity	0.013
dv_has_place_latitude_velocity	-0.03
dv_has_value_for_brightness_min	5
dv_has_value_for_brightness_max	5
dv_is_same_as	[[../../../WikiData/WD~Achernar,12183|WD~Achernar,12183]]
aliases	Achernar Achernaras Ahernar Alfaya Çemî Alpha Eridani Ağız Marere-o-tonga Əxrənnəhr Αχερνάρ Ахернар Ахирнәр Ахэрнар Ախերնար אכרנר آخرالنهر آخرنہر السلبار आकरनार तारा অগ্ৰনদ নদীমুখ അകെർനർ アケルナル 水委一 아케르나르

[[Achernar]]

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is_same_as = = this.dv_is_same_as

#has_/text_of_/abstract

Achernar is the brightest star in the constellation of Eridanus and the ninth-brightest in the night sky.

It has the Bayer designation Alpha Eridani, which is Latinized from α Eridani and abbreviated Alpha Eri or α Eri.

The name Achernar applies to the primary component of a binary system. The two components are designated Alpha Eridani A (the primary) and B (the secondary), with the latter known informally as Achernar B.

As determined by the Hipparcos astrometry satellite, this system is located at a distance of approximately 139 light-years (43 parsecs) from the Sun.

Of the ten brightest stars in the night-time sky by apparent magnitude, Alpha Eridani is the hottest and bluest in color because it is spectral type B.

Achernar has an unusually rapid rotational velocity, causing it to become oblate in shape. The secondary is smaller, is spectral type A, and orbits Achernar at a distance of 7.35 AU.

Wikipedia

Confidential Links & Embeds:

• [[../../../_Standards/astro/Star/Achernar|Achernar]]
• [[../../../_public/astro/Star/Achernar.public|Achernar.public]]
• [[../../../_internal/astro/Star/Achernar.internal|Achernar.internal]]
• [[../../../_protect/astro/Star/Achernar.protect|Achernar.protect]]
• [[../../../_private/astro/Star/Achernar.private|Achernar.private]]
• [[../../../_personal/astro/Star/Achernar.personal|Achernar.personal]]
• [[../../../_secret/astro/Star/Achernar.secret|Achernar.secret]]