17501+3130 SEI 548

 
 
17h 50m 05.98s +31 29' 39.9" P.A. 89 sep 17.5 mag 9.10,12.06 Sp F8
 
 
Coord 2000
17501+3130
Discov num
SEI 548
Comp
Coord arcsec 2000
17 50 05.98 +31 29 39.9
Date first
1902
Date last
2013
Obs
10
Pa first
80
Pa last
89
P.A. Now (θ)
89°
Sep first
21.8
Sep last
17.5
Sep. Now (ρ)
17.5"
Mag pri
9.10
Mag sec
12.06
delta mag (ΔM)
2.96
Spectral class
F8 (yellow-white)
Pri motion ra
+029
Sec motion ra
-008
Pri motion dec
+032
Sec motion dec
-005
Notes
rPM=1.212
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
89.3
Precise sep
17.5
Constellation
Hercules
SAO
66366
Tycho2
2607-00986-1
last precise pa
89.3
last precise sep
17.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17501+3130 SEI 548 2002 7 88 18.1 9.40 10.90 F8 D 175005.98+312939.9
17501+3130 SEI 548 2013 9 89 17.5 9.10 12.06 F8 175005.98+312939.9

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