19180-2504 HDS2730

 
 
19h 18m 02.17s -25 04' 19.9" P.A. 90 sep 0.5 mag 8.95,11.77 Sp A7V dist. 297.62 pc (970.84 l.y.)
 
 
Coord 2000
19180-2504
Discov num
HDS2730
Comp
Coord arcsec 2000
19 18 02.17 -25 04 19.9
Date first
1991
Date last
2016
Obs
3
Pa first
88
Pa last
90
P.A. Now (θ)
90°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.95
Mag sec
11.77
delta mag (ΔM)
2.82
Spectral class
A7V (white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-021
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
89.9
Precise sep
0.472
Constellation
Sagittarius
HIP
94853
HD
180570
Distance
297.62
Distance ly
970.84
last precise pa
89.9
last precise sep
0.472
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19180-2504 HDS2730 1991 1 88 0.4 8.95 11.77 A7V D 191802.17-250419.9
19180-2504 HDS2730 2014 2 89 0.5 8.95 11.77 A7V 191802.17-250419.9
19180-2504 HDS2730 2016 3 90 0.5 8.95 11.77 A7V 191802.17-250419.9

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