20254+4014 MLR   1

 
 
20h 25m 22.12s +40 13' 01.0" P.A. 213.00 sep 0.4 mag 9.70,10.30 Sp O6V
 
 
Coord 2000
20254+4014
Discov num
MLR   1
Comp
Coord arcsec 2000
20 25 22.12 +40 13 01.0
Date first
1906
Date last
2018
Obs
13
Pa first
198
Pa last
213
P.A. Now (θ)
213°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.70
Mag sec
10.30
delta mag (ΔM)
0.6
Spectral class
O6V (blue)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
N (See Notes)
Visually invisible, K-band or other infrared star Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
213.1
Precise sep
0.4
Constellation
Cygnus
Tycho2
3156-00339-1
Gaia DR2
39582531712
HD
194649
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20254+4014 MLR 1 1977 9 215 0.3 9.70 10.30 O6.5 N 202522.12+401301.0
20254+4014 MLR 1 2008 10 210 0.4 9.70 10.30 O6.5 N 202522.12+401301.0
20254+4014 MLR 1 2018 13 213 0.4 9.70 10.30 O6V N 202522.12+401301.0

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