17557-2805 I   109

 
 
17h 55m 43.42s -28 04' 43.6" P.A. 240 sep 5.4 mag 10.10,11.60
 
 
Coord 2000
17557-2805
Discov num
I   109
Comp
Coord arcsec 2000
17 55 43.42 -28 04 43.6
Date first
1896
Date last
2000
Obs
8
Pa first
225
Pa last
240
P.A. Now (θ)
240°
Sep first
2.7
Sep last
5.4
Sep. Now (ρ)
5.4"
Mag pri
10.10
Mag sec
11.60
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
+029
Sec motion ra
-085
Pri motion dec
+005
Sec motion dec
-079
Notes
rPM=1.22
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
239.8
Precise sep
5.38
Constellation
Sagittarius
Tycho2
6849-00227-1
HD
316666
last precise pa
239.8
last precise sep
5.38
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17557-2805 I 109 1998 6 239 5.5 10.10 11.60 D 175543.42-280443.6
17557-2805 I 109 2000 8 240 5.4 10.10 11.60 D 175543.42-280443.6

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