18487+3401 HU  936

 
 
18h 48m 42.19s +34 01' 04.8" P.A. 99 sep 1.9 mag 9.66,9.85 Sp F8
 
 
Coord 2000
18487+3401
Discov num
HU  936
Comp
Coord arcsec 2000
18 48 42.19 +34 01 04.8
Date first
1904
Date last
2016
Obs
29
Pa first
102
Pa last
99
P.A. Now (θ)
99°
Sep first
1.9
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
9.66
Mag sec
9.85
delta mag (ΔM)
0.19
Spectral class
F8 (yellow-white)
Pri motion ra
-022
Sec motion ra
-022
Pri motion dec
+020
Sec motion dec
+020
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
98.8
Precise sep
1.873
Constellation
Lyra
SAO
67413
Tycho2
2646-02225-2
last precise pa
98.8
last precise sep
1.873
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18487+3401 HU 936 2005 28 100 1.8 9.66 9.85 F8 184842.19+340104.8
18487+3401 HU 936 2008 30 97 1.8 9.66 9.85 F8 184842.19+340104.8
18487+3401 HU 936 2011 31 98 1.8 9.66 9.85 F8 184842.19+340104.8
18487+3401 HU 936 2013 28 99 1.9 9.66 9.85 F8 184842.19+340104.8
18487+3401 HU 936 2016 29 99 1.9 9.66 9.85 F8 184842.19+340104.8

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