18161-1111 HDS2579

 
 
18h 16m 04.62s -11 10' 47.7" P.A. 81 sep 7.7 mag 7.80,12.01 Sp F5 dist. 90.17 pc (294.13 l.y.)
 
 
Coord 2000
18161-1111
Discov num
HDS2579
Comp
Coord arcsec 2000
18 16 04.62 -11 10 47.7
Date first
1991
Date last
2010
Obs
5
Pa first
113
Pa last
81
P.A. Now (θ)
81°
Sep first
8.4
Sep last
7.7
Sep. Now (ρ)
7.7"
Mag pri
7.80
Mag sec
12.01
delta mag (ΔM)
4.21
Spectral class
F5 (yellow-white)
Pri motion ra
-034
Sec motion ra
-028
Pri motion dec
-050
Sec motion dec
-051
Notes
rPM=0.101 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80.5
Precise sep
7.65
Cdsa2 id
HDS 2579
Constellation
Serpens
SAO
161242
HIP
89524
Tycho2
5681-00417-1
HD
167518
BD
BD-11 4573
Ra deg
18.26795
De deg
-11.179916666666665
Distance
90.17
Distance ly
294.13
last precise pa
80.5
last precise sep
7.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18161-1111 HDS2579 1991 2 113 8.4 7.80 12.01 F5 181604.62-111047.7
18161-1111 HDS2579 2000 3 78 7.8 7.80 12.01 F5 181604.62-111047.7
18161-1111 HDS2579 2010 5 81 7.7 7.80 12.01 F5 181604.62-111047.7

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