19583-5154 DUN 229 AB (HD 188557)

 
 
19h 58m 15.29s -51° 53' 43.4" P.A. 242.00 sep 80.9 mag 7.65,8.23 Sp A9IV+F6V dist. 87.72 pc (286.14 l.y.)
 
 
Coord 2000 19583-5154 Discov num DUN 229 Comp AB Coord arcsec 2000 19 58 15.29 -51 53 43.4
Date first 1826 Date last 2016 Obs 22
Pa first 247 Pa last 242.1 P.A. Now (θ) 242.1°
Sep first 84.1 Sep last 80.87 Sep. Now (ρ) 80.87"
Mag pri 7.65 Mag sec 8.23 delta mag (ΔM) 0.58 Spectral class A9IV+F6V (white/yellow-white)
Pri motion ra +046 Sec motion ra +046
Pri motion dec -044 Sec motion dec -043
Notes N T W (See Notes, Parallax indicates physical, )
rPM=0.016 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188557 Constellation Telescopium SAO 246357 HIP 98294
Tycho2 8403-02136-1 HD 188557 GC 27623 CP CP-5211589
Distance 87.72 Distance ly 286.14
 
 
WDS 19583-5154 DUN 229 AB (HD 188557) : NOTES
 
 
discov_num notes refcode
DUN 229 B is CPD-52@11587.
Estimated P of AB ~ 400 kyr. B is a spectroscopic binary with P ~ 236d. Tok2022e
 
 
REFERENCES
 
 
refcode metd author reference
Tok2022e orb Tokovinin, A. 2022AJ....163..161T
Tok2022e AJ 163, 161, 2022
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19583-5154 DUN 229 AB 2016 21 242 80.9 7.65 8.23 A9IV NTW 195815.29-515343.4

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WDS 19583-5154 DUN 229 AB (HD 188557) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19583-5154 DUN 229 AB (HD 188557) : MEASURES
 
 
No records found.

 
 
WDS 19583-5154 (HD 188557) : VIRTUAL EYEPIECE
 
 

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WDS 19583-5154 (HD 188557) : ALADIN DSS IMAGE @
 
 
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