17554+1352 HEI 553

 
 
17h 55m 24.61s +13 51' 34.5" P.A. 209 sep 0.4 mag 9.84,9.87 Sp A3
 
 
Coord 2000
17554+1352
Discov num
HEI 553
Comp
Coord arcsec 2000
17 55 24.61 +13 51 34.5
Date first
1987
Date last
1996
Obs
4
Pa first
208
Pa last
209
P.A. Now (θ)
209°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.84
Mag sec
9.87
delta mag (ΔM)
0.03
Spectral class
A3 (white)
Pri motion ra
+008
Sec motion ra
+008
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
209.1
Precise sep
0.36
Constellation
Ophiuchus
SAO
103217
Tycho2
1019-00920-1
HD
163400
last precise pa
209.1
last precise sep
0.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17554+1352 HEI 553 1996 4 209 0.4 9.84 9.87 A3 175524.61+135134.5

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