17551+3135 ITF  21

 
 
17H 55M 06.54S +31 34' 31.1" P.A. 314 SEP 5.4 MAG 17.50,19.00 SP K4V+K7V
 
 
Coord 2000
17551+3135
Discov num
ITF  21
Comp
Coord arcsec 2000
17 55 06.54 +31 34 31.1
Date first
1952
Date last
1998
Obs
2
Pa first
310
Pa last
314
P.A. Now (θ)
314°
Sep first
5.1
Sep last
5.4
Sep. Now (ρ)
5.4"
Mag pri
17.50
Mag sec
19.00
delta mag (ΔM)
1.5
Spectral class
K4V+K7V (yellow-orange/yellow-orange)
Pri motion ra
+009
Sec motion ra
+009
Pri motion dec
-015
Sec motion dec
-015
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
Tycho2
2608-00792-1
last precise pa
314.4
last precise sep
5.38