20254+4129 COU2642

 
 
20h 25m 22.16s +41 29' 28.2" P.A. 318.00 sep 0.7 mag 10.41,10.47 Sp A2
 
 
Coord 2000
20254+4129
Discov num
COU2642
Comp
Coord arcsec 2000
20 25 22.16 +41 29 28.2
Date first
1991
Date last
2008
Obs
4
Pa first
307
Pa last
318
P.A. Now (θ)
318°
Sep first
0.4
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
10.41
Mag sec
10.47
delta mag (ΔM)
0.06
Spectral class
A2 (white)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-016
Sec motion dec
-016
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
317.9
Precise sep
0.715
Constellation
Cygnus
Tycho2
3160-00551-1
Gaia DR2
90691689472
HD
229286
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20254+4129 COU2642 2007 3 320 0.7 10.41 10.47 202522.16+412928.2
20254+4129 COU2642 2008 4 318 0.7 10.41 10.47 202522.16+412928.2

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