20198+3707 ARY   1

 
 
20h 19m 48.32s +37 07' 57.1" P.A. 257 sep 76.6 mag 6.58,8.65 Sp B9.5Vp dist. 238.1 pc (776.68 l.y.)
 
 
Coord 2000
20198+3707
Discov num
ARY   1
Comp
Coord arcsec 2000
20 19 48.32 +37 07 57.1
Date first
1896
Date last
2015
Obs
17
Pa first
258
Pa last
257
P.A. Now (θ)
257°
Sep first
74.8
Sep last
76.6
Sep. Now (ρ)
76.6"
Mag pri
6.58
Mag sec
8.65
delta mag (ΔM)
2.07
Spectral class
B9.5Vp (blue-white)
Pri motion ra
+012
Sec motion ra
-002
Pri motion dec
-007
Sec motion dec
-004
Notes
rPM=1.031
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
257.3
Precise sep
76.592
Constellation
Cygnus
SAO
69841
HIP
100239
Tycho2
2684-01111-1
Gaia DR2
79014390528
HD
193621
HR
7782
BD
BD+36 4008
Distance
238.1
Distance ly
776.68
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20198+3707 ARY 1 2001 12 258 76.6 6.58 8.65 D 201948.32+370757.1
20198+3707 ARY 1 2011 13 257 77.0 6.58 8.65 D 201948.32+370757.1
20198+3707 ARY 1 2015 16 257 76.6 6.58 8.65 B9.5Vp 201948.32+370757.1

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