20112+5422 STI2509

 
 
20h 11m 10.33s +54 22' 15.6" P.A. 257 sep 7.8 mag 12.00,12.80
 
 
Coord 2000
20112+5422
Discov num
STI2509
Comp
Coord arcsec 2000
20 11 10.33 +54 22 15.6
Date first
1917
Date last
2015
Obs
8
Pa first
256
Pa last
257
P.A. Now (θ)
257°
Sep first
7.3
Sep last
7.8
Sep. Now (ρ)
7.8"
Mag pri
12.00
Mag sec
12.80
delta mag (ΔM)
0.8
Spectral class
Pri motion ra
-005
Sec motion ra
-016
Pri motion dec
-010
Sec motion dec
-008
Notes
R (Red magnitudes)
rPM=0.625
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
257.1
Precise sep
7.838
Constellation
Cygnus
SAO
32343
Tycho2
3936-00352-1
Gaia DR2
78505632000
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20112+5422 STI2509 1999 2 77 7.8 11.93 11.90 D 201110.33+542215.7
20112+5422 STI2509 2003 3 257 7.8 12.00 12.80 R 201110.33+542215.6
20112+5422 STI2509 2010 4 256 7.5 12.00 12.80 R 201110.33+542215.6
20112+5422 STI2509 2015 4 257 7.9 12.00 12.80 R 201110.33+542215.6

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