17544+3135 SEI 550

 
 
17h 54m 17.88s +31 35' 15.7" P.A. 20 sep 5.8 mag 9.30,11.00
 
 
Coord 2000
17544+3135
Discov num
SEI 550
Comp
Coord arcsec 2000
17 54 17.88 +31 35 15.7
Date first
1899
Date last
2013
Obs
8
Pa first
40
Pa last
20
P.A. Now (θ)
20°
Sep first
7.7
Sep last
5.8
Sep. Now (ρ)
5.8"
Mag pri
9.30
Mag sec
11.00
delta mag (ΔM)
1.7
Spectral class
Pri motion ra
-008
Sec motion ra
+000
Pri motion dec
-033
Sec motion dec
+009
Notes
rPM=1.259
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
20
Precise sep
5.83
Constellation
Hercules
last precise pa
20
last precise sep
5.83
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17544+3135 SEI 550 2002 5 22 5.8 9.30 11.00 D 175417.88+313515.7
17544+3135 SEI 550 2013 7 20 5.8 9.30 11.00 D 175417.88+313515.7

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