15234-5919 HJ 4757 (Gam Cir)

 
 
15h 23m 22.66s -59° 19' 14.5" P.A. 353.00 sep 0.8 mag 4.94,5.73 Sp B5IV+F8 dist. 137.55 pc (448.69 l.y.)
 
 
Coord 2000 15234-5919 Discov num HJ 4757 Comp Coord arcsec 2000 15 23 22.66 -59 19 14.5
Date first 1835 Date last 2021 Obs 76
Pa first 107 Pa last 353.4 P.A. Now (θ) 353.4°
Sep first 1.0 Sep last 0.822 Sep. Now (ρ) 0.822"
Mag pri 4.94 Mag sec 5.73 delta mag (ΔM) 0.79 Spectral class B5IV+F8 (blue-white/yellow-white)
Pri motion ra -010 Sec motion ra
Pri motion dec -037 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Gam Cir Constellation Circinus SAO 242463 HIP 75323
Tycho2 8707-01990-1 Gaia DR2 5876786743052644480 HD 136415 HR 5704
GC 20663 CP CP-58 5908 Bayer Gamma Circini Bayer name Gam Cir
Distance 137.55 Distance ly 448.69 Bayer greek γ Cir
 
 
ORBITAL ELEMENTS
 
 
Period (P)600y Periastron (T)2111.7y Semi-major axis (a)1.275a
Eccentricity (e)0.404 Inclination (i)127.8° Longitude of periastron (ω)218.7°
Node (Ω)123.9° Notesn ReferenceTok2020e
Equinox Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 10.7 0.823
2001 9.9 0.823
2002 9.1 0.822
2003 8.3 0.822
2004 7.5 0.822
2005 6.7 0.821
2006 5.8 0.821
2007 5.0 0.821
2008 4.2 0.821
2009 3.4 0.821
2010 2.6 0.821
2011 1.8 0.821
2012 1.0 0.821
2013 0.2 0.822
2014 359.4 0.822
2015 358.5 0.822
2016 357.7 0.823
2017 356.9 0.823
2018 356.1 0.824
2019 355.3 0.824
2020 354.5 0.825
2021 353.7 0.826
2022 352.9 0.826
2023 352.1 0.827
2024 351.3 0.828
2025 350.5 0.829
2026 349.7 0.830
2027 348.9 0.830
2028 348.1 0.831
2029 347.3 0.832
2030 346.6 0.833


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds15234-5919c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 15234-5919 HJ 4757 (Gam Cir) : NOTES
 
 
discov_num notes refcode
HJ 4757 gam Cir. A premature orbit has been computed.
 
 
REFERENCES
 
 
refcode metd author reference
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
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
15234-5919 HJ 4757 2006 57 5 0.8 4.94 5.73 B5IV+F8 NOD 152322.66-591914.5
15234-5919 HJ 4757 2009 62 3 0.8 4.94 5.73 B5IV+F8 NOD 152322.66-591914.5
15234-5919 HJ 4757 2012 63 1 0.8 4.94 5.73 B5IV F8 NOD 152322.66-591914.5
15234-5919 HJ 4757 2014 64 359 0.8 4.94 5.73 B5IV F8 NO 152322.66-591914.5
15234-5919 HJ 4757 2016 68 0 1.0 4.94 5.73 B5IV+F8 NO 152322.66-591914.5
15234-5919 HJ 4757 2017 72 357 0.8 4.94 5.73 B5IV+F8 NO 152322.66-591914.5
15234-5919 HJ 4757 2018 73 356 0.8 4.94 5.73 B5IV+F8 NO 152322.66-591914.5
15234-5919 HJ 4757 2019 74 175 0.8 4.94 5.73 B5IV+F8 NO 152322.66-591914.5
15234-5919 HJ 4757 2021 76 353 0.8 4.94 5.73 B5IV+F8 NO 152322.66-591914.5

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WDS 15234-5919 HJ 4757 (Gam Cir) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15234-5919 HJ 4757 (Gam Cir) : MEASURES
 
 
No records found.

 
 
WDS 15234-5919 (Gam Cir) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 15234-5919 (Gam Cir) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.