20256-5644 HJ 5193 AB (Peacock)

 
 
20h 25m 38.85s -56° 44' 06.3" P.A. 80.00 sep 249.4 mag 1.90,9.14 Sp B2IV dist. 54.82 pc (178.82 l.y.)
 
 
Coord 2000 20256-5644 Discov num HJ 5193 Comp AB Coord arcsec 2000 20 25 38.85 -56 44 06.3
Date first 1879 Date last 2008 Obs 7
Pa first 85 Pa last 80.2 P.A. Now (θ) 80.2°
Sep first 245.4 Sep last 249.4 Sep. Now (ρ) 249.4"
Mag pri 1.90 Mag sec 9.14 delta mag (ΔM) 7.24 Spectral class B2IV (blue-white)
Pri motion ra +007 Sec motion ra +007
Pri motion dec -086 Sec motion dec -021
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.753
This double is not physical.
 
 
20256-5644 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Peacock 246574 20 25 39 -56 44 06 HJ 5193 AB 2008 7 80 249.4 1.90 9.14 7.24 <===
Show 246574 20 25 39 -56 44 06 HJ 5193 AC 2010 3 77 244.4 1.90 9.70 7.80
Show 246574 20 25 39 -56 44 06 HJ 5193 AD 2010 3 254 62.3 1.90 9.70 7.80
Show 20 26 09 -56 43 24 HJ 5193 BC 2010 10 332 16.7 9.14 9.70 0.56
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Peacock Var name NSV13060 Pav Constellation Pavo SAO 246574
HIP 100751 Tycho2 8785-01898-1 Gaia DR2 6468936087465816064 HD 193924
HR 7790 GC 28374 CP CP-57 9674 Bayer Alpha Pavonis
Bayer name Alp Pav FK5 764 Distance 54.82 Distance ly 178.82
Bayer greek α Pav
Meaning peacock
 
 
WDS 20256-5644 HJ 5193 AB (Peacock) : NOTES
 
 
discov_num notes refcode
HJ 5193 alp Pav = Peacock. A is a spectroscopic binary.
Intensity Interferometer Limb-darkened diameter 0.80 +/- 0.05 mas. HBr1974
 
 
REFERENCES
 
 
refcode metd author reference
HBr1974 - Hanbury Brown, R., Davis, J., & Allen, L.R. 1974MNRAS.167..121H
HBr1974 MNRAS 167, 121, 1974
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20256-5644 HJ 5193 AB 1999 5 80 249.0 1.90 9.14 B2IV N D 202538.85-564406.3
20256-5644 HJ 5193 AB 2008 6 80 249.4 1.90 9.14 B2IV N D 202538.85-564406.3

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WDS 20256-5644 HJ 5193 AB (Peacock) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20256-5644 HJ 5193 AB (Peacock) : MEASURES
 
 
No records found.

 
 
WDS 20256-5644 (Peacock) : VIRTUAL EYEPIECE
 
 

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Radius:
Components only
 
 
WDS 20256-5644 (Peacock) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.