20077+3709 POP 190AB

 
 
20h 07m 40.47s +37 08' 56.6" P.A. 186 sep 5.6 mag 11.74,12.60 Sp F2III
 
 
Coord 2000
20077+3709
Discov num
POP 190
Comp
AB
Coord arcsec 2000
20 07 40.47 +37 08 56.6
Date first
1985
Date last
2015
Obs
4
Pa first
189
Pa last
186
P.A. Now (θ)
186°
Sep first
4.9
Sep last
5.6
Sep. Now (ρ)
5.6"
Mag pri
11.74
Mag sec
12.60
delta mag (ΔM)
0.86
Spectral class
F2III (yellow-white)
Pri motion ra
-002
Sec motion ra
-014
Pri motion dec
-007
Sec motion dec
-049
Notes
rPM=0.857
This double is not physical.
 
 
20077+3709 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20077+3709 POP 190 AB 1985 2015 4 186 5.6 11.74 12.60 0.86 <===
Show 20077+3709 POP 190 AC 1984 2015 4 230 40.8 11.74 12.70 0.96
Show 20077+3709 POP 190 CD 1985 2015 4 310 4.4 12.70 14.20 1.50
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
185.5
Precise sep
5.605
Constellation
Cygnus
Tycho2
2683-01251-1
Gaia DR2
39314982272
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20077+3709 POP 190 AB 1998 2 187 5.5 11.74 13.70 D 200740.46+370856.6
20077+3709 POP 190 AB 2002 3 186 5.6 11.74 12.60 D 200740.47+370856.6
20077+3709 POP 190 AB 2015 4 186 5.6 11.74 12.60 F2III 200740.47+370856.6

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