18165-7604 HDS2581

 
 
18h 16m 28.92s -76 04' 17.5" P.A. 272 sep 0.3 mag 9.29,11.73 Sp A2III/IV dist. 305.81 pc (997.55 l.y.)
 
 
Coord 2000
18165-7604
Discov num
HDS2581
Comp
Coord arcsec 2000
18 16 28.92 -76 04 17.5
Date first
1991
Date last
1991
Obs
1
Pa first
272
Pa last
272
P.A. Now (θ)
272°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
9.29
Mag sec
11.73
delta mag (ΔM)
2.44
Spectral class
A2III/IV (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
272
Precise sep
0.271
Constellation
Apus
HIP
89559
Tycho2
9445-00494-1
HD
165757
CP
CP-76 1233
Distance
305.81
Distance ly
997.55
last precise pa
272
last precise sep
0.271
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18165-7604 HDS2581 1991 1 272 0.3 9.29 11.73 A2III/IV 181628.92-760417.5

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