My Lyrae
Star μ Lyrae |
|||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AladinLite | |||||||||||||||||||||
Observation dates equinox : J2000.0 , 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 |
|||||||||||||||||||||
|
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').