20408+3802 ALI 672

 
 
20h 40m 50.14s +38 02' 31.3" P.A. 167.00 sep 12.4 mag 11.59,12.30
 
 
Coord 2000
20408+3802
Discov num
ALI 672
Comp
Coord arcsec 2000
20 40 50.14 +38 02 31.3
Date first
1929
Date last
2015
Obs
12
Pa first
170
Pa last
167
P.A. Now (θ)
167°
Sep first
11.8
Sep last
12.4
Sep. Now (ρ)
12.4"
Mag pri
11.59
Mag sec
12.30
delta mag (ΔM)
0.71
Spectral class
Pri motion ra
+000
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
-006
Notes
rPM=0.784
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
167.2
Precise sep
12.356
Constellation
Cygnus
Tycho2
3166-01192-1
Gaia DR2
56504159872
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20408+3802 ALI 672 1998 4 168 12.4 11.59 12.30 D 204050.14+380231.3
20408+3802 ALI 672 2008 5 168 12.4 11.59 12.30 D 204050.14+380231.3
20408+3802 ALI 672 2010 7 167 12.3 11.59 12.30 204050.14+380231.3
20408+3802 ALI 672 2015 8 167 12.3 11.59 12.30 204050.14+380231.3

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