19403+0420 BU  977AB

 
 
19h 40m 16.67s +04 20' 15.5" P.A. 54 sep 4.1 mag 8.46,12.50 Sp F5
 
 
Coord 2000
19403+0420
Discov num
BU  977
Comp
AB
Coord arcsec 2000
19 40 16.67 +04 20 15.5
Date first
1880
Date last
2015
Obs
8
Pa first
59
Pa last
54
P.A. Now (θ)
54°
Sep first
3.8
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
8.46
Mag sec
12.50
delta mag (ΔM)
4.04
Spectral class
F5 (yellow-white)
Pri motion ra
+008
Sec motion ra
Pri motion dec
-031
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19403+0420 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19403+0420 BU 977 AB 1880 2015 8 54 4.1 8.46 12.50 4.04 <===
Show 19403+0420 BU 977 AC 1914 2015 4 292 49.9 8.46 11.70 3.24
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
54.1
Precise sep
4.145
Constellation
Aquila
Tycho2
0487-01245-1
Gaia DR2
45612559488
HD
185700
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19403+0420 BU 977 AB 1933 7 59 4.0 8.46 12.50 F5 194016.67+042015.5
19403+0420 BU 977 AB 2015 8 54 4.1 8.46 12.50 F5 194016.67+042015.5

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