20217+4522 BRT2261

 
 
20h 21m 38.66s +45 22' 39.3" P.A. 272 sep 4.5 mag 9.80,10.40
 
 
Coord 2000
20217+4522
Discov num
BRT2261
Comp
Coord arcsec 2000
20 21 38.66 +45 22 39.3
Date first
1892
Date last
2015
Obs
6
Pa first
287
Pa last
272
P.A. Now (θ)
272°
Sep first
4.0
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
9.80
Mag sec
10.40
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
+014
Sec motion ra
-018
Pri motion dec
-002
Sec motion dec
-009
Notes
rPM=1.628
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
271.7
Precise sep
4.496
Constellation
Cygnus
Gaia DR2
70416895872
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20217+4522 BRT2261 2003 4 272 4.6 9.80 10.40 D 202138.66+452239.3
20217+4522 BRT2261 2015 6 272 4.5 9.80 10.40 202138.66+452239.3

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