20123+3205 STF2649AB

 
 
20h 12m 18.61s +32 04' 51.8" P.A. 151 sep 21.3 mag 7.86,9.85 Sp A2 dist. 102.25 pc (333.54 l.y.)
 
 
Coord 2000
20123+3205
Discov num
STF2649
Comp
AB
Coord arcsec 2000
20 12 18.61 +32 04 51.8
Date first
1832
Date last
2015
Obs
46
Pa first
152
Pa last
151
P.A. Now (θ)
151°
Sep first
26.1
Sep last
21.3
Sep. Now (ρ)
21.3"
Mag pri
7.86
Mag sec
9.85
delta mag (ΔM)
1.99
Spectral class
A2 (white)
Pri motion ra
+016
Sec motion ra
+004
Pri motion dec
-022
Sec motion dec
-002
Notes
N L (See Notes, Linear solution)
rPM=0.857
This double is not physical.
 
 
20123+3205 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20123+3205 STF2649 AB 1832 2015 46 151 21.3 7.86 9.85 1.99 <===
Show 20123+3205 STF2649 AC 1893 2015 17 284 131.2 7.86 11.41 3.55
Show 20123+3205 STF2649 AD 1893 2015 14 36 176.2 7.86 10.63 2.77
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
150.8
Precise sep
21.255
Constellation
Cygnus
SAO
69594
HIP
99564
Tycho2
2675-03232-1
Gaia DR2
80217733120
HD
192165
BD
BD+31 3988
Distance
102.25
Distance ly
333.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20123+3205 STF2649 AB 2007 30 151 21.3 7.86 9.85 A2 NLD 201218.61+320451.8
20123+3205 STF2649 AB 2008 31 151 21.3 7.86 9.85 A2 NLD 201218.61+320451.8
20123+3205 STF2649 AB 2010 33 151 21.4 7.86 9.85 A2 NLD 201218.61+320451.8
20123+3205 STF2649 AB 2012 35 150 21.0 7.86 9.85 A2 NLD 201218.61+320451.8
20123+3205 STF2649 AB 2015 36 151 21.3 7.86 9.85 A2 NL 201218.61+320451.8

If you need more information about this double, apply for a data request form to the WDS.