20209+3346 NSN   2

 
 
20h 20m 51.01s +33 45' 53.2" P.A. 190.00 sep 5.2 mag 12.90,17.00 Sp K9
 
 
Coord 2000
20209+3346
Discov num
NSN   2
Comp
Coord arcsec 2000
20 20 51.01 +33 45 53.2
Date first
1950
Date last
2016
Obs
11
Pa first
186
Pa last
190
P.A. Now (θ)
190°
Sep first
4.4
Sep last
5.2
Sep. Now (ρ)
5.2"
Mag pri
12.90
Mag sec
17.00
delta mag (ΔM)
4.1
Spectral class
K9 (yellow-orange)
Pri motion ra
+007
Sec motion ra
+012
Pri motion dec
-157
Sec motion dec
-162
Notes
V (Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.044 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.6
Precise sep
5.214
Constellation
Cygnus
SAO
69868
Gaia DR2
31106458368
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20209+3346 NSN 2 2016 8 190 5.2 12.90 17.00 K9 V 202051.01+334553.2

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