20169+4022 BU  661AB

 
 
20h 16m 55.28s +40 21' 54.3" P.A. 69 sep 12.3 mag 5.24,11.50 Sp K3.5IIab dist. 483.09 pc (1575.84 l.y.)
 
 
Coord 2000
20169+4022
Discov num
BU  661
Comp
AB
Coord arcsec 2000
20 16 55.28 +40 21 54.3
Date first
1878
Date last
2014
Obs
16
Pa first
67
Pa last
69
P.A. Now (θ)
69°
Sep first
12.6
Sep last
12.3
Sep. Now (ρ)
12.3"
Mag pri
5.24
Mag sec
11.50
delta mag (ΔM)
6.26
Spectral class
K3.5IIab (yellow-orange)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20169+4022 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 49410 20169+4022 BU 661 AB 1878 2014 16 69 12.3 5.24 11.50 6.26 <===
Show 20169+4022 BU 661 AC 1912 2014 5 217 111.7 5.44 13.68 8.24
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
68.7
Precise sep
12.331
Constellation
Cygnus
SAO
49410
HIP
99968
Tycho2
3155-02323-1
Gaia DR2
97982404608
HD
193092
HR
7759
BD
BD+39 4114
Distance
483.09
Distance ly
1575.84
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20169+4022 BU 661 AB 1958 14 66 12.6 5.24 11.50 K3.5IIab D 201655.28+402154.3
20169+4022 BU 661 AB 2013 15 65 12.6 5.24 11.50 K3.5IIab 201655.28+402154.3
20169+4022 BU 661 AB 2014 16 69 12.3 5.24 11.50 K3.5IIab 201655.28+402154.3

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