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Doubles in session


Current system
09407-5759
B 780
HD 84121


Nearby doubles
21' : 09402-5740
BRT2551

28' : 09441-5756
HU 1469

30' : 09394-5731
RST 419

32' : 09436-5738
DAM1712

33' : 09384-5732
HJ 4232

33' : 09439-5738
HU 1468AB

34' : 09418-5831
RST 424

35' : 09376-5734
ALD 116

38' : 09455-5759
TDS 551

39' : 09418-5722
TDS 548

42' : 09448-5825
TDS6780

42' : 09449-5734
FIN 145

44' : 09458-5816
TDS6794

44' : 09396-5716
BRT3126

47' : 09431-5842
KPP3793

48' : 09434-5717
HDS1402

49' : 09447-5837
BRT3127

50' : 09464-5819
DAM1733

51' : 09351-5822
RST 414

52' : 09382-5711
FIN 401

56' : 09341-5740
TDS6656

58' : 09415-5702
TDS6743AB

59' : 09473-5825
TDS6811

60' : 09333-5758
R 123

61' : 09352-5718
TDS6667

62' : 09335-5823
RST 413



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.

09407-5759 B 780 (HD 84121)

 
 
09h 40m 42.60s -57° 59' 00.9" P.A. 278.00 sep 0.1 mag 5.85,6.48 Sp A3IV dist. 72.57 pc (236.72 l.y.)
 
 
Coord 2000 09407-5759 Discov num B   780 Comp Coord arcsec 2000 09 40 42.60 -57 59 00.9
Date first 1927 Date last 2019 Obs 65
Pa first 238 Pa last 277.7 P.A. Now (θ) 239°
Sep first 0.2 Sep last 0.148 Sep. Now (ρ) 0.138"
Mag pri 5.85 Mag sec 6.48 delta mag (ΔM) 0.63 Spectral class A3IV (white)
Pri motion ra -032 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 84121 Constellation Carina SAO 237221 HIP 47479
Tycho2 8593-01420-1 Gaia DR2 5305914640875063424 HD 84121 HR 3863
GC 13376 CP CP-57 2228 Distance 72.57 Distance ly 236.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.63y± 0.01 Periastron (T)2005.86y± 0.02 Semi-major axis (a)0.123a± 0
Eccentricity (e)0.338± 0.002 Inclination (i)128.6°± 0.3 Longitude of periastron (ω)17.6°± 0.8
Node (Ω)86.1°± 0.3 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 261.2 0.162
2001 249.4 0.154
2002 234.6 0.131
2003 211.2 0.098
2004 167.5 0.074
2005 113.6 0.080
2006 67.9 0.076
2007 356.4 0.062
2008 303.6 0.099
2009 282.0 0.138
2010 268.5 0.159
2011 256.9 0.161
2012 244.5 0.147
2013 227.5 0.119
2014 198.0 0.086
2015 146.5 0.073
2016 96.9 0.083
2017 46.0 0.067
2018 330.6 0.072
2019 293.9 0.115
2020 276.5 0.148
2021 264.2 0.162
2022 252.6 0.158
2023 239.0 0.138
2024 218.7 0.107
2025 181.3 0.077
2026 126.4 0.076
2027 80.5 0.081
2028 17.7 0.060
2029 312.7 0.087
2030 286.4 0.129


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


 
  


wds09407-5759a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09407-5759 B 780 (HD 84121) : NOTES
 
 
discov_num notes refcode
B 780 Variable RV. with a range of 40 km/s observed in 1912-13.
Speckle observations needed to confirm orbit. Sp subsystem in sec?
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 5.83 +/- 0.53, 3.09, and 2.09 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09407-5759 B 780 2006 48 58 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2009 49 278 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2010 50 257 0.2 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2013 51 225 0.1 5.85 6.48 A3IV NOD 094042.60-575900.9
09407-5759 B 780 2014 54 196 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2015 56 100 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2017 61 16 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2018 64 295 0.1 5.85 6.48 A3IV NO 094042.60-575900.9
09407-5759 B 780 2019 65 278 0.1 5.85 6.48 A3IV NO 094042.60-575900.9

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 09407-5759 B 780 (HD 84121) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09407-5759 B 780 (HD 84121) : MEASURES
 
 
No records found.

 
 
WDS 09407-5759 (HD 84121) : VIRTUAL EYEPIECE
 
 

09407-5759 B 780A mag 5.85 Sp A3IV 09407-5759 B 780B sep 0.1 P.A. 284.30 mag 6.48 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 09407-5759 (HD 84121) : ALADIN DSS IMAGE @ 09h 40m 42.60s -57° 59' 00.9"
 
 
 
 
WDS 09407-5759 B 780 (HD 84121) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09407-5759 B 780 distance=1' 09402-5740 BRT2551 distance=21' 09441-5756 HU 1469 distance=28' 09394-5731 RST 419 distance=30' 09436-5738 DAM1712 distance=32' 09384-5732 HJ 4232 distance=33' 09439-5738 HDS1404Aa,Ab distance=33' 09439-5738 HU 1468AB distance=33' 09439-5738 HU 1468AC distance=33' 09418-5831 RST 424 distance=34' 09376-5734 ALD 116 distance=35' 09455-5759 TDS 551 distance=38' 09418-5722 TDS 548 distance=39' 09448-5825 TDS6780 distance=42' 09449-5734 FIN 145 distance=42' 09458-5816 TDS6794 distance=44' 09396-5716 BRT3126 distance=44' 09431-5842 KPP3793 distance=47' 09434-5717 HDS1402 distance=48' 09447-5837 BRT3127 distance=49' 09464-5819 DAM1733 distance=50' 09351-5822 RST 414 distance=51' 09382-5711 FIN 401 distance=52' 09341-5740 TDS6656 distance=56' 09415-5702 TDS6743AB distance=58' 09415-5702 DAM1699AB,C distance=58' 09473-5825 TDS6811 distance=59' 09333-5758 R 123 distance=60' 09352-5718 TDS6667 distance=61' 09335-5823 RST 413 distance=62' 09336-5826 RST5570 distance=63' 09457-5711 HDS1410 distance=63' 09331-5744 DAM1647 distance=63' 09488-5803 RST 436 distance=64' 09480-5825 BRT3128 distance=65' 09396-5656 BRT2549 distance=65' 09381-5658 COO 88 distance=65' 09325-5757 RST 411 distance=66' 09359-5706 TDS6675 distance=66' 09326-5741 HDS1374 distance=68' 09492-5819 DAM1775 distance=71' 09487-5832 BRT3129 distance=72' 09384-5650 TDS6711 distance=72' 09349-5705 DAM1658 distance=72' 09485-5841 FIN 403 distance=75' 09498-5820 TDS6836 distance=75' 09457-5903 TDS6793 distance=75' 09352-5659 TDS6666 distance=76' 09503-5808 TDS6847 distance=77' 09502-5813 HJ 4260 distance=77' 09398-5917 I 321BC distance=78' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 09407-5759 B 780 278 0.1 1
Show 09402-5740 BRT2551 82 2.9 21
Show 09441-5756 HU 1469 258 5.7 28
Show 09394-5731 RST 419 251 2.8 30
Show 09436-5738 DAM1712 113 1.3 32
Show 09384-5732 HJ 4232 303 10.8 33
Show 09439-5738 HDS1404 Aa,Ab 276 0.1 33
Show 09439-5738 HU 1468 AB 199 4.5 33
Show 09439-5738 HU 1468 AC 230 18.5 33
Show 09418-5831 RST 424 194 3.7 34
Show 09376-5734 ALD 116 235 1.7 35
Show 09455-5759 TDS 551 58 1.0 38
Show 09418-5722 TDS 548 234 1.3 39
Show 09448-5825 TDS6780 241 1.9 42
Show 09449-5734 FIN 145 291 3.7 42
Show 09458-5816 TDS6794 16 1.6 44
Show 09396-5716 BRT3126 214 3.3 44
Show 09431-5842 KPP3793 7 1.7 47
Show 09434-5717 HDS1402 48 0.3 48
Show 09447-5837 BRT3127 251 4.3 49
Show 09464-5819 DAM1733 100 1.2 50
Show 09351-5822 RST 414 181 3.4 51
Show 09382-5711 FIN 401 310 6.1 52
Show 09341-5740 TDS6656 316 1.3 56
Show 09415-5702 TDS6743 AB 173 0.4 58
Show 09415-5702 DAM1699 AB,C 299 4.0 58
Show 09473-5825 TDS6811 143 2.6 59
Show 09333-5758 R 123 33 1.9 60
Show 09352-5718 TDS6667 19 9.9 61
Show 09335-5823 RST 413 237 0.5 62
Show 09336-5826 RST5570 273 3.5 63
Show 09457-5711 HDS1410 52 0.3 63
Show 09331-5744 DAM1647 203 15.7 63
Show 09488-5803 RST 436 318 2.7 64
Show 09480-5825 BRT3128 100 3.8 65
Show 09396-5656 BRT2549 145 2.9 65
Show 09381-5658 COO 88 148 11.7 65
Show 09325-5757 RST 411 10 0.7 66
Show 09359-5706 TDS6675 81 0.5 66
Show 09326-5741 HDS1374 96 3.2 68
Show 09492-5819 DAM1775 2 3.0 71
Show 09487-5832 BRT3129 46 3.4 72
Show 09384-5650 TDS6711 234 2.4 72
Show 09349-5705 DAM1658 355 3.1 72
Show 09485-5841 FIN 403 164 4.3 75
Show 09498-5820 TDS6836 357 0.9 75
Show 09457-5903 TDS6793 88 2.3 75
Show 09352-5659 TDS6666 36 0.4 76
Show 09503-5808 TDS6847 329 0.5 77
Show 09502-5813 HJ 4260 118 12.1 77
Show 09398-5917 I 321 BC 29 2.2 78

 
 
WDS 09407-5759 : COMPONENTS
 
 
  A
B pa=284.3°
sep=0.08"
 
 
09407-5759 A
 
 
Componente originario normalizzato AB Name HD 84121 Coord arcsec 2000 094042.60-575900.9 Mag 5.85
Spectral class A3IV (white) PmRA -32.00 PmDE 3.0 SAO 237221
HIP 47479 Tycho2 8593-01420-1 HD 84121 HR 3863
GC 13376 CP CP-57 2228
Tycho2
Tycho2 8593-01420-1 Pflag RAmdeg 145.17736951 DEmdeg -57.98355239
PmRA -31.0 PmDE 8.7 E RAmdeg 3 E DEmdeg 3
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.33 EpDEm 1991.47
Num 14 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 1.0 BTmag 5.538 E BTmag 0.014 VTmag 5.332
E VTmag 0.009 Prox 999 TYC T HIP 47479
CCDM AB RAdeg 145.17750611 DEdeg -57.98357250 EpRA 1990 1.58
EpDE 1990 1.67 E RAdeg 3.4 E DEdeg 3.3 Posflg P
Corr -0.1
SAO
SAO 237221 DelFlag RA1950 PmRA1950 -0.0043
DE1950 PmDE1950 0.004 Vmag 5.4 SpType A2
Double code Source 70 CatNum 13376 DM CP-57 2228
DMcomp BDsup HD 84121 M HD 0
GC 13376 RA1950rad 2.52709709 DE1950rad -1.00802445 PmRA2000 -0.0043
PmDE2000 0.006
Hipparcos
Catalog H HIP 47479 Proxy H RAhms 09 40 42.60
DEdms -57 59 00.9 Vmag 5.3 VarFlag R Vmag H
RAdeg 145.178 DEdeg -57.9836 AstroRef * Plx 14.85
CCDM 09407-5759 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 245 Rho 0.125 HD 84121 BD
CD CP CP-57 2228 Dm number -57 2228 VIred 0.21
SpType A3IV R SpType Coord arcsec 2000 094042.60-575900.9
Hipparcos 2
HIP 47479 Sn 55 So 3 Nc 2
RArad 2.5338255714 DErad -1.0120042332 Plx 13.78 PmRA -43.28
PmDE 7.09 E RArad 0.31 E DErad 0.36 E Plx 0.41
E pmRA 0.35 E pmDE 0.42 Hpmag 5.3665 E Hpmag 0.0008
SHp 0.006 VA 0 BV 0.195 E BV 0.004
VI 0.21
CCDM
Ccdm 09407-5759 RComp Comp A Note1
Note2 Discov num DRAs 0.48 DDEs -1.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.0 Sp A2 PmNote *
PmRA -38 PmDE -5 Dm number -57 2228 Cat1 CPD
Name2 237221 Cat2 SAO HD 84121 M HD
ADS BDS M ADS BDS N IDS IDS 09376S5732A
HIC 47479
 
 
09407-5759 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 094042.59-575900.9 Mag 6.48 Calc delta mag 0.63
Calc coord yes
CCDM
Ccdm 09407-5759 RComp Comp B Note1 *
Note2 Discov num B 780 DRAs DDEs
R dRAs Year 1927 Theta Rho
Obs 99 Vmag 6.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 09376S5732B
HIC 47479