16518+3151 BU  821

 
 
16h 51m 50.65s +31 50' 36.3" P.A. 323 sep 1.2 mag 9.83,10.48 Sp G5
 
 
Coord 2000
16518+3151
Discov num
BU  821
Comp
Coord arcsec 2000
16 51 50.65 +31 50 36.3
Date first
1881
Date last
2014
Obs
53
Pa first
314
Pa last
323
P.A. Now (θ)
323°
Sep first
1.2
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
9.83
Mag sec
10.48
delta mag (ΔM)
0.65
Spectral class
G5 (yellow)
Pri motion ra
+011
Sec motion ra
+011
Pri motion dec
+002
Sec motion dec
+002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
322.5
Precise sep
1.24
Constellation
Hercules
SAO
65616
Tycho2
2589-00573-1
last precise pa
322.5
last precise sep
1.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16518+3151 BU 821 2005 50 323 1.2 9.83 10.48 G5 165150.65+315036.3
16518+3151 BU 821 2010 52 322 1.3 9.83 10.48 G5 165150.65+315036.3
16518+3151 BU 821 2014 53 323 1.2 9.83 10.48 G5 165150.65+315036.3

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