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Current system
08394-3636
I 314
HD 73900


Nearby doubles
16' : 08398-3619
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28' : 08397-3610
TDS6016

34' : 08416-3617
DAM1470

36' : 08418-3616
TDS6044

36' : 08407-3604
B 1986

42' : 08377-3601
TDS5994

42' : 08428-3631
HJ 4129

49' : 08407-3550
TDS6029

50' : 08353-3641
TDS5955

52' : 08437-3640
JSP 296

55' : 08413-3547
JSP 293

55' : 08439-3633
RST4895

59' : 08353-3604
BRT1635

61' : 08388-3537
TDS6004

65' : 08354-3553
TDS 479

70' : 08338-3619
TDS5940

78' : 08450-3600
JSP 300

79' : 08401-3518
RST4894

84' : 08427-3750
WFC 72

84' : 08345-3737
I 195

85' : 08332-3718
TDS5931

85' : 08461-3701
HDS1267

92' : 08372-3509
BRT1636

93' : 08386-3505
JSP 286

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TDS6036

93' : 08321-3606
JSP 278



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

08394-3636 I 314 (HD 73900)

 
 
08h 39m 22.09s -36° 36' 24.0" P.A. 241.00 sep 1.0 mag 6.40,7.90 Sp F1IV dist. 37.85 pc (123.47 l.y.)
 
 
Coord 2000 08394-3636 Discov num I   314 Comp Coord arcsec 2000 08 39 22.09 -36 36 24.0
Date first 1900 Date last 2023 Obs 41
Pa first 239 Pa last 240.9 P.A. Now (θ) 240.6°
Sep first 1.0 Sep last 0.954 Sep. Now (ρ) 0.974"
Mag pri 6.40 Mag sec 7.90 delta mag (ΔM) 1.5 Spectral class F1IV (yellow-white)
Pri motion ra -175 Sec motion ra
Pri motion dec +048 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 73900 Constellation Pyxis SAO 199473 HIP 42455
Tycho2 7148-03874-1 Gaia DR2 5530317851619425024 HD 73900 HR 3434
GC 11895 CD CD-36 4872 CP CP-36 2797 Distance 37.85
Distance ly 123.47
 
 
ORBITAL ELEMENTS
 
 
Period (P)65.79y Periastron (T)1990.84y Semi-major axis (a)0.565a
Eccentricity (e)0.824 Inclination (i)99° Longitude of periastron (ω)339.7°
Node (Ω)57.5° Notesn ReferenceTok2020g
Equinox2000 Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 248.4 0.398
2001 247.6 0.443
2002 246.9 0.486
2003 246.2 0.526
2004 245.7 0.564
2005 245.3 0.600
2006 244.9 0.635
2007 244.5 0.667
2008 244.2 0.697
2009 243.9 0.726
2010 243.6 0.753
2011 243.3 0.778
2012 243.1 0.802
2013 242.8 0.824
2014 242.6 0.845
2015 242.4 0.864
2016 242.2 0.881
2017 242.0 0.897
2018 241.8 0.912
2019 241.6 0.925
2020 241.4 0.937
2021 241.3 0.947
2022 241.1 0.956
2023 240.9 0.964
2024 240.8 0.970
2025 240.6 0.974
2026 240.4 0.977
2027 240.3 0.979
2028 240.1 0.979
2029 240.0 0.978
2030 239.8 0.975
2031 239.6 0.970
2032 239.5 0.964
2033 239.3 0.956
2034 239.1 0.947
2035 239.0 0.936
2036 238.8 0.923
2037 238.6 0.908
2038 238.4 0.891
2039 238.2 0.872
2040 238.0 0.851
2041 237.8 0.828
2042 237.5 0.802
2043 237.3 0.774
2044 237.0 0.743
2045 236.7 0.710
2046 236.4 0.673
2047 236.0 0.632
2048 235.6 0.587
2049 235.1 0.538
2050 234.5 0.484


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds08394-3636b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic