20307+2657 OPI  25AB

 
 
20h 30m 46.95s +26 57' 34.6" P.A. 29 sep 14 mag 10.03,13.50 Sp G5
 
 
Coord 2000
20307+2657
Discov num
OPI  25
Comp
AB
Coord arcsec 2000
20 30 46.95 +26 57 34.6
Date first
1924
Date last
2015
Obs
9
Pa first
18
Pa last
29
P.A. Now (θ)
29°
Sep first
10.9
Sep last
14.0
Sep. Now (ρ)
14"
Mag pri
10.03
Mag sec
13.50
delta mag (ΔM)
3.47
Spectral class
G5 (yellow)
Pri motion ra
-036
Sec motion ra
+005
Pri motion dec
-043
Sec motion dec
-019
Notes
rPM=0.847
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
29
Precise sep
13.954
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 AB 1924 1 18 10.9 10.03 13.50 G5 203046.95+265734.6
20307+2657 OPI 25 AB 2000 2 27 13.3 10.03 13.50 G5 203046.95+265734.6
20307+2657 OPI 25 AB 2002 3 27 13.5 10.03 13.50 G5 203046.95+265734.6
20307+2657 OPI 25 AB 2012 3 30 13.9 10.03 13.50 G5 203046.95+265734.6
20307+2657 OPI 25 AB 2015 5 29 13.9 10.03 13.50 G5 203046.95+265734.6

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