20177+1755 J  1340

 
 
20h 17m 46.70s +17 57' 11.3" P.A. 311 sep 2 mag 9.40,9.40 Sp G0
 
 
Coord 2000
20177+1755
Discov num
J  1340
Comp
Coord arcsec 2000
20 17 46.70 +17 57 11.3
Date first
1914
Date last
1998
Obs
9
Pa first
313
Pa last
311
P.A. Now (θ)
311°
Sep first
1.9
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
9.40
Mag sec
9.40
delta mag (ΔM)
0
Spectral class
G0 (yellow)
Pri motion ra
+008
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
N I (See Notes, Identification uncertain)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
310.6
Precise sep
1.98
Constellation
Sagitta
Tycho2
1635-00622-1
Gaia DR2
11358729216
HD
351906
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+1755 J 1340 1998 9 310 2.0 9.40 9.40 N 201708.57+175500.0

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