My Lyrae

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Star
μ Lyrae
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation lyre
Right ascension 18 h 24 m 13.8 s
declination + 39 ° 30 ′ 26 ″
Apparent brightness 5.1 mag
Typing
Astrometry
Physical Properties
Other names
and catalog entries
Bayer name μ Lyrae
Flamsteed name 2 lyre
Bonn survey BD + 39 ° 3410
Bright Star Catalog HR 6903 [1]
Henry Draper Catalog HD 169702 [2]
Hipparcos catalog HIP 90191 [3]
SAO catalog SAO 66943 [4]
Tycho catalog TYC 3108-2592-1 [5]Template: Infobox star / maintenance / specification of the TYC catalog
2MASS catalog 2MASS J18241380 + 3930261 [6]
Other names FK5  3463

μ Lyrae ( My Lyrae , μ Lyr ) is a fifth magnitude star that belongs to spectral class A and is a little more than 130 parsecs away. Measurements of the projected rotational speed v⋅sin (i) for μ Lyr resulted in values ​​in the range of around 200 km s −1 . The star bears the historical proper name Alathfar (from the Arabic الأظفر, DMG al-uẓfur 'fingernail, claw').