19571+4939 HDS2839

 
 
19h 57m 06.78s +49 39' 03.7" P.A. 80 sep 0.6 mag 8.57,11.40 Sp A0 dist. 231.48 pc (755.09 l.y.)
 
 
Coord 2000
19571+4939
Discov num
HDS2839
Comp
Coord arcsec 2000
19 57 06.78 +49 39 03.7
Date first
1991
Date last
2008
Obs
2
Pa first
83
Pa last
80
P.A. Now (θ)
80°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.57
Mag sec
11.40
delta mag (ΔM)
2.83
Spectral class
A0 (white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80.3
Precise sep
0.591
Constellation
Cygnus
SAO
49018
HIP
98177
Tycho2
3566-01374-1
HD
189313
BD
BD+49 3142
Distance
231.48
Distance ly
755.09
last precise pa
80.3
last precise sep
0.591
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19571+4939 HDS2839 1991 1 83 0.6 8.57 11.40 A0 D 195706.78+493903.7
19571+4939 HDS2839 2008 2 80 0.6 8.57 11.40 A0 D 195706.78+493903.7

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