20307+0311 BAL2029

 
 
20h 30m 44.30s +03 11' 22.3" P.A. 141 sep 7.5 mag 11.30,11.40
 
 
Coord 2000
20307+0311
Discov num
BAL2029
Comp
Coord arcsec 2000
20 30 44.30 +03 11 22.3
Date first
1909
Date last
2015
Obs
9
Pa first
131
Pa last
141
P.A. Now (θ)
141°
Sep first
9.1
Sep last
7.5
Sep. Now (ρ)
7.5"
Mag pri
11.30
Mag sec
11.40
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
-006
Sec motion ra
-014
Pri motion dec
-007
Sec motion dec
-009
Notes
rPM=0.495
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
141.4
Precise sep
7.47
Constellation
Delphinus
Gaia DR2
49855839232
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+0311 BAL2029 2000 2 140 7.5 11.30 11.40 D 203044.30+031122.3
20307+0311 BAL2029 2015 4 141 7.5 11.30 11.40 203044.30+031122.3

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