17490+4722 BVD 256

 
 
17h 49m 01.83s +47 22' 01.2" P.A. 239 sep 25.4 mag 11.80,18.00
 
 
Coord 2000
17490+4722
Discov num
BVD 256
Comp
Coord arcsec 2000
17 49 01.83 +47 22 01.2
Date first
1998
Date last
2010
Obs
2
Pa first
239
Pa last
239
P.A. Now (θ)
239°
Sep first
25.4
Sep last
25.4
Sep. Now (ρ)
25.4"
Mag pri
11.80
Mag sec
18.00
delta mag (ΔM)
6.2
Spectral class
Pri motion ra
-034
Sec motion ra
-034
Pri motion dec
+064
Sec motion dec
+064
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
238.7
Precise sep
25.42
Constellation
Hercules
Tycho2
3515-01683-1
last precise pa
238.7
last precise sep
25.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17490+4722 BVD 256 1998 1 239 25.4 11.80 18.00 V 174901.83+472201.2
17490+4722 BVD 256 2010 2 239 25.4 11.80 18.00 V 174901.83+472201.2

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