18139-7419 HDS2575

 
 
18h 13m 56.81s -74 18' 37.4" P.A. 101 sep 2.4 mag 8.33,12.50 Sp A0V dist. 591.72 pc (1930.19 l.y.)
 
 
Coord 2000
18139-7419
Discov num
HDS2575
Comp
Coord arcsec 2000
18 13 56.81 -74 18 37.4
Date first
1991
Date last
1991
Obs
2
Pa first
100
Pa last
101
P.A. Now (θ)
101°
Sep first
2.4
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
8.33
Mag sec
12.50
delta mag (ΔM)
4.17
Spectral class
A0V (white)
Pri motion ra
+009
Sec motion ra
+010
Pri motion dec
+004
Sec motion dec
+004
Notes
rPM=0.093 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.5
Precise sep
2.38
Constellation
Apus
HIP
89351
Tycho2
9302-01518-1
Gaia DR2
06138420736
HD
165457
CP
CP-74 1671
Distance
591.72
Distance ly
1930.19
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18139-7419 HDS2575 1991 2 101 2.4 8.33 12.50 A0V 181356.81-741837.4

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