20307+2657 OPI  25AC

 
 
20h 30m 46.95s +26 57' 34.6" P.A. 324.00 sep 27.0 mag 10.03,12.50 Sp G5
 
 
Coord 2000
20307+2657
Discov num
OPI  25
Comp
AC
Coord arcsec 2000
20 30 46.95 +26 57 34.6
Date first
1924
Date last
2015
Obs
9
Pa first
314
Pa last
324
P.A. Now (θ)
324°
Sep first
25.4
Sep last
27.0
Sep. Now (ρ)
27"
Mag pri
10.03
Mag sec
12.50
delta mag (ΔM)
2.47
Spectral class
G5 (yellow)
Pri motion ra
-036
Sec motion ra
-009
Pri motion dec
-043
Sec motion dec
+000
Notes
rPM=0.905
This double is not physical.
 
 
20307+2657 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20307+2657 OPI 25 AB 1924 2015 9 29 14.0 10.03 13.50 3.47
Show 20307+2657 OPI 25 AC 1924 2015 9 324 27.0 10.03 12.50 2.47 <===
Show 20307+2657 OPI 25 AD 1924 2015 9 357 103.7 10.03 11.80 1.77
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
324.2
Precise sep
27.039
Constellation
Vulpecula
Tycho2
2165-00677-1
Gaia DR2
12032193920
HD
340458
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+2657 OPI 25 AC 1999 2 322 26.8 10.03 12.50 D 203046.95+265734.6
20307+2657 OPI 25 AC 2002 3 323 26.9 10.03 12.50 D 203046.95+265734.6
20307+2657 OPI 25 AC 2012 4 325 27.2 10.03 12.50 D 203046.95+265734.6
20307+2657 OPI 25 AC 2015 5 324 27.0 10.03 12.50 G5 203046.95+265734.6

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