15536-2520 BU   36AB (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
2.0
Sep. Now (ρ)
2"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 183896 15536-2520 OCC 187 Aa,Ab 1933 1933 0 0.1 5.60 5.60 0.00
Show 2 Sco 183896 15536-2520 BU 36 AB 1855 2019 41 273 2.0 4.69 6.98 2.29 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
273
Precise sep
1.987
Name
2 Sco
Other name
A Sco
Constellation
Scorpius
SAO
183896
HIP
77840
Tycho2
6782-02147-1
Gaia DR2
6235654766990811008
HD
142114
HR
5904
GC
21329
CD
CD-2412352
CP
CP-24 5582
Flamsteed
2 Scorpii
Flamsteed name
2 Sco
Distance
154.08
Distance ly
502.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15536-2520 BU 36 AB 2016 38 268 2.4 4.69 6.98 B2.5Vn N V 155336.72-251937.7
15536-2520 BU 36 AB 2019 40 267 2.0 4.69 6.98 B2.5Vn N V 155336.72-251937.7

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