20109+3047 HDS2876

 
 
20h 10m 54.39s +30 47' 22.9" P.A. 72.00 sep 0.3 mag 6.99,10.03 Sp B9 dist. 606.06 pc (1976.97 l.y.)
 
 
Coord 2000
20109+3047
Discov num
HDS2876
Comp
Coord arcsec 2000
20 10 54.39 +30 47 22.9
Date first
1991
Date last
1991
Obs
1
Pa first
72
Pa last
72
P.A. Now (θ)
72°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
6.99
Mag sec
10.03
delta mag (ΔM)
3.04
Spectral class
B9 (blue-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
72
Precise sep
0.341
Constellation
Cygnus
SAO
69562
HIP
99431
Tycho2
2671-01740-1
Gaia DR2
99226305792
HD
191855
BD
BD+30 3929
Distance
606.06
Distance ly
1976.97
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20109+3047 HDS2876 1991 1 72 0.3 6.99 10.03 B9 D 201054.39+304722.9

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