20177+4030 HDS2897

 
 
20h 17m 44.44s +40 30' 24.7" P.A. 275 sep 0.3 mag 8.46,10.76 Sp G5 dist. 273.22 pc (891.24 l.y.)
 
 
Coord 2000
20177+4030
Discov num
HDS2897
Comp
Coord arcsec 2000
20 17 44.44 +40 30 24.7
Date first
1991
Date last
2010
Obs
3
Pa first
256
Pa last
275
P.A. Now (θ)
275°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.46
Mag sec
10.76
delta mag (ΔM)
2.3
Spectral class
G5 (yellow)
Pri motion ra
+011
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
275.2
Precise sep
0.313
Constellation
Cygnus
SAO
49432
HIP
100037
Tycho2
3155-01552-1
Gaia DR2
08314219392
HD
193246
BD
BD+40 4098
Distance
273.22
Distance ly
891.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+4030 HDS2897 1991 1 256 0.3 8.46 10.76 G5 D 201744.44+403024.7
20177+4030 HDS2897 2009 2 269 0.3 8.46 10.76 G5 D 201744.44+403024.7
20177+4030 HDS2897 2010 3 275 0.3 8.46 10.76 G5 D 201744.44+403024.7

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