15536-2520 BU 36 AB (2 Sco)

 
 
15h 53m 36.72s -25° 19' 37.7" P.A. 273.00 sep 2.0 mag 4.69,6.98 Sp B2.5Vn dist. 154.08 pc (502.61 l.y.)
 
 
Coord 2000 15536-2520 Discov num BU   36 Comp AB Coord arcsec 2000 15 53 36.72 -25 19 37.7
Date first 1855 Date last 2019 Obs 41
Pa first 278 Pa last 273 P.A. Now (θ) 273°
Sep first 2.6 Sep last 1.987 Sep. Now (ρ) 1.987"
Mag pri 4.69 Mag sec 6.98 delta mag (ΔM) 2.29 Spectral class B2.5Vn (blue-white)
Pri motion ra -014 Sec motion ra
Pri motion dec -024 Sec motion dec
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
15536-2520 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 183896 15 53 37 -25 19 38 OCC 187 Aa,Ab 1933 0 -1 0.1 5.60 5.60 0.00
Show 2 Sco 183896 15 53 37 -25 19 38 BU 36 AB 2019 41 273 2.0 4.69 6.98 2.29 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 2 Sco Constellation Scorpius SAO 183896 HIP 77840
Tycho2 6782-02147-1 Gaia DR2 6235654766990811008 HD 142114 HR 5904
GC 21329 ADS 9823 CD CD-2412352 CP CP-24 5582
Flamsteed 2 Scorpii Flamsteed name 2 Sco Distance 154.08 Distance ly 502.61