17376-1524 RST5090AB (Xi Ser)

 
 
17h 37m 35.23s -15 23' 54.3" P.A. 78.00 sep 24.5 mag 3.54,13.00 Sp F0IV dist. 32.28 pc (105.3 l.y.)
 
 
Coord 2000
17376-1524
Discov num
RST5090
Comp
AB
Coord arcsec 2000
17 37 35.23 -15 23 54.3
Date first
1943
Date last
2015
Obs
7
Pa first
81
Pa last
78
P.A. Now (θ)
78°
Sep first
24.5
Sep last
24.5
Sep. Now (ρ)
24.5"
Mag pri
3.54
Mag sec
13.00
delta mag (ΔM)
9.46
Spectral class
F0IV (yellow-white)
Pri motion ra
-042
Sec motion ra
Pri motion dec
-058
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17376-1524 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 160700 17 37 35 -15 23 54 ISO 6 Aa,Ab 1987 1 132 0.3 3.54
Show Xi Ser 160700 17 37 35 -15 23 54 RST 5090 AB 2015 7 78 24.5 3.54 13.00 9.46 <===
Show 160700 17 37 35 -15 23 54 DRS 61 AC 2000 3 58 999.9 3.55 13.82 10.27
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
78.4
Precise sep
24.505
Name
Xi Ser
Constellation
Serpens
SAO
160700
HIP
86263
Tycho2
6248-01369-1
Gaia DR2
4125171197089493888
HD
159876
HR
6561
GC
23881
BD
BD-15 4621
Bayer
Xi Serpentis
Bayer name
Xi Ser
Flamsteed
55 Serpentis
Flamsteed name
55 Ser
Distance
32.28
Distance ly
105.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17376-1524 RST5090 AB 1998 4 79 24.4 3.54 13.00 F0IV D 173735.23-152354.3
17376-1524 RST5090 AB 2012 5 78 24.9 3.54 13.00 F0IV N 173735.23-152354.3
17376-1524 RST5090 AB 2015 6 78 24.5 3.54 13.00 F0IV N 173735.23-152354.3

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