20157+0957 J  1234

 
 
20h 15m 42.78s +09 56' 37.9" P.A. 43 sep 4.4 mag 11.90,13.40
 
 
Coord 2000
20157+0957
Discov num
J  1234
Comp
Coord arcsec 2000
20 15 42.78 +09 56 37.9
Date first
1915
Date last
2015
Obs
6
Pa first
39
Pa last
43
P.A. Now (θ)
43°
Sep first
4.3
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
11.90
Mag sec
13.40
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-004
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
43.1
Precise sep
4.365
Constellation
Delphinus
Tycho2
1077-01491-1
Gaia DR2
56428826240
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+0957 J 1234 2000 3 42 4.3 12.51 15.00 D 201542.78+095637.9
20157+0957 J 1234 2001 4 43 4.4 12.51 15.00 D 201542.78+095637.9
20157+0957 J 1234 2010 5 46 4.4 11.90 13.40 201542.78+095637.9
20157+0957 J 1234 2015 6 43 4.4 11.90 13.40 201542.78+095637.9

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