18491+1313 STF2399BD

 
 
18h 49m 08.33s +13 12' 46.7" P.A. 69 sep 42.2 mag 9.48,12.18 Sp A2
 
 
Coord 2000
18491+1313
Discov num
STF2399
Comp
BD
Coord arcsec 2000
18 49 08.33 +13 12 46.7
Date first
1843
Date last
2014
Obs
10
Pa first
71
Pa last
69
P.A. Now (θ)
69°
Sep first
39.9
Sep last
42.2
Sep. Now (ρ)
42.2"
Mag pri
9.48
Mag sec
12.18
delta mag (ΔM)
2.7
Spectral class
A2 (white)
Pri motion ra
+003
Sec motion ra
+006
Pri motion dec
-006
Sec motion dec
-002
Notes
rPM=0.745
Nature of this double is uncertain.
 
 
18491+1313 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18491+1313 STF2399 AB 1829 2014 26 118 15.8 8.83 9.48 0.65
Show 18491+1313 STF2399 AC 1829 2014 18 48 31.1 8.83 11.10 2.27
Show 18491+1313 STF2399 BC 1829 2014 18 18 29.7 9.48 11.10 1.62
Show 18491+1313 STF2399 BD 1843 2014 10 69 42.2 9.48 12.18 2.70 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
68.5
Precise sep
42.17
Cdsa2 id
STF 2399 BD
Constellation
Hercules
Ra deg
18.818980555555555
De deg
13.212972222222222
last precise pa
68.5
last precise sep
42.17
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18491+1313 STF2399 BD 2002 7 69 42.2 9.48 12.70 D 184908.33+131246.7
18491+1313 STF2399 BD 2014 10 69 42.2 9.48 12.18 184908.33+131246.7

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