19495+3517 SEI 689

 
 
19h 49m 28.94s +35 16' 44.1" P.A. 301 sep 21 mag 10.26,11.23 Sp A2
 
 
Coord 2000
19495+3517
Discov num
SEI 689
Comp
Coord arcsec 2000
19 49 28.94 +35 16 44.1
Date first
1894
Date last
2010
Obs
10
Pa first
302
Pa last
301
P.A. Now (θ)
301°
Sep first
20.9
Sep last
21.0
Sep. Now (ρ)
21"
Mag pri
10.26
Mag sec
11.23
delta mag (ΔM)
0.97
Spectral class
A2 (white)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.4
Precise sep
20.95
Constellation
Cygnus
Tycho2
2677-00169-1
HD
225994
last precise pa
301.4
last precise sep
20.95
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19495+3517 SEI 689 1998 7 302 20.9 10.26 11.23 D 194928.94+351644.1
19495+3517 SEI 689 2010 8 301 21.0 10.26 11.23 D 194928.94+351644.1

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