11279+0251 STFA 19 AB (Tau Leo)

11h 27m 56.23s +02° 51' 22.5" P.A. 181.00 sep 89.2 mag 5.05,7.47 Sp G8II-III dist. 172.41 pc (562.4 l.y.)

Coord 2000 11279+0251 Discov num STFA 19 Comp AB Coord arcsec 2000 11 27 56.23 +02 51 22.5
Date first 1780 Date last 2019 Obs 77
Pa first 164 Pa last 181.2 P.A. Now (θ) 181.2°
Sep first 82.7 Sep last 89.2 Sep. Now (ρ) 89.2"
Mag pri 5.05 Mag sec 7.47 delta mag (ΔM) 2.42 Spectral class G8II-III (yellow)
Pri motion ra +016 Sec motion ra -090
Pri motion dec -010 Sec motion dec +017
Notes N L (See Notes, Linear solution)




rPM=1.194

This double is not physical.



11279+0251 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Tau Leo 118875 11 27 56 +02 51 22 STFA 19 AB 2019 77 181 89.2 5.05 7.47 2.42 <===
Show 118875 11 27 56 +02 51 22 STFA 19 AD 2019 11 92 761.5 5.05 9.51 4.46
Show 118876 11 27 56 +02 49 54 STFA 19 BC 2019 8 234 102.4 7.47 14.48 7.01
Show 118876 11 27 56 +02 49 54 STFA 19 BD 2019 9 86 767.5 7.47 9.51 2.04
Show 11 27 51 +02 48 48 BUP 9002 CE 2015 14 192 9.2 14.48 14.22 0.26


Quintuple system
5 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name Tau Leo Constellation Leo SAO 118875 HIP 55945
Tycho2 0267-01193-1 Gaia DR2 3812336190247422336 HD 99648 HR 4418
GC 15729 BD BD+03 2504 Bayer Tau Leonis Bayer name Tau Leo
Flamsteed 84 Leonis Flamsteed name 84 Leo FK5 1297 Distance 172.41
Distance ly 562.4 Bayer greek τ Leo