15245+3723 STFA 28 AB (Alkalurops)

 
 
15h 24m 29.54s +37° 22' 37.1" P.A. 171.00 sep 109.2 mag 4.33,7.09 Sp F2IVa+G0V dist. 34.69 pc (113.16 l.y.)
 
 
Coord 2000 15245+3723 Discov num STFA 28 Comp AB Coord arcsec 2000 15 24 29.54 +37 22 37.1
Date first 1780 Date last 2020 Obs 154
Pa first 170 Pa last 170.8 P.A. Now (θ) 170.8°
Sep first 128.0 Sep last 109.17 Sep. Now (ρ) 109.17"
Mag pri 4.33 Mag sec 7.09 delta mag (ΔM) 2.76 Spectral class F2IVa+G0V (yellow-white/yellow)
Pri motion ra -147 Sec motion ra -154
Pri motion dec +080 Sec motion dec +092
Notes N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
rPM=0.077 (< 0.3, Physical double)
This double is physical.
 
 
15245+3723 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 64686 15 24 30 +37 22 37 CHR 181 Aa,Ab 2012 47 188 0.1 4.31 Y
Show Alkalurops 64686 15 24 30 +37 22 37 STFA 28 AB 2020 154 171 109.2 4.33 7.09 2.76 <===
Show 64687 15 24 31 +37 20 52 STF 1938 Ba,Bb 2020 763 2 2.2 7.09 7.63 0.54 Y
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Alkalurops Var name NSV7063 Boo Constellation Bootes SAO 64686
HIP 75411 Tycho2 2570-01521-1 Gaia DR2 1387349379494192896 HD 137391
HR 5733 GC 20724 ADS 9626 GL NN 3903A
BD BD+37 2636 Bayer Mu 1 Bootis Bayer name Mu1 Boo Flamsteed 51 Bootis
Flamsteed name 51 Boo FK5 568 Distance 34.69 Distance ly 113.16
Bayer greek μ1 Boo
Other names INKALUNIS, ICALURUS, CLAVA, VENABULUM
Meaning crook