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Doubles in session


Current system
11446-4925
RST 9004 AB
V838 Cen


Nearby doubles
17' : 11459-4936
RST 553

25' : 11472-4929
RSS 273

27' : 11456-4901
HDS1660

31' : 11432-4858
BRT 802

34' : 11479-4914
CPO 334

38' : 11481-4909
DAM 561

39' : 11474-4953
CVN 44AB

40' : 11406-4931
VSP 31

40' : 11487-4930
RST5573

41' : 11444-4844
TDS8012

46' : 11493-4919
HDS1668

47' : 11437-4839
RST 552

47' : 11490-4906
TDS8044

50' : 11436-4837
DAM 558

51' : 11402-4950
TDS7981

54' : 11442-4832
TDS8010

54' : 11501-4933
JNN 162AB

58' : 11413-5012
I 308

60' : 11502-4951
SWR 118

61' : 11422-5021
TDS8001

62' : 11480-5017
TDS8031

65' : 11504-4957
TDS8062

68' : 11450-4818
NSN 291AB

68' : 11449-4817
LDS 363

71' : 11463-4817
RST 554

73' : 11378-4855
HJ 4459



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.

11446-4925 RST 9004 AB (V838 Cen)

 
 
11h 44m 38.59s -49° 25' 02.4" P.A. 281.00 sep 0.4 mag 9.35,10.64 Sp K0V+K5V dist. 48.57 pc (158.44 l.y.)
 
 
Coord 2000 11446-4925 Discov num RST9004 Comp AB Coord arcsec 2000 11 44 38.59 -49 25 02.4
Date first 1929 Date last 2021 Obs 25
Pa first 349 Pa last 281.4 P.A. Now (θ) 290°
Sep first 0.2 Sep last 0.376 Sep. Now (ρ) 0.4"
Mag pri 9.35 Mag sec 10.64 delta mag (ΔM) 1.29 Spectral class K0V+K5V (yellow-orange/yellow-orange)
Pri motion ra -139 Sec motion ra
Pri motion dec -049 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
11446-4925 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show V838 Cen 222993 11 44 39 -49 25 02 RST 9004 AB 2021 25 281 0.4 9.35 10.64 1.29 Y <===
Show 222993 11 44 39 -49 25 02 RST 9004 AB,C 2015 6 35 15.7 9.11 13.50 4.39
Show 222993 11 44 39 -49 25 02 DAM 560 AB,D 2015 3 143 8.5 9.11 14.00 4.89
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V838 Cen Constellation Centaurus SAO 222993 HIP 57269
Tycho2 8223-00048-1 Gaia DR2 5371687288986430848 HD 102077 CD CD-48 6770
CP CP-48 4174 Distance 48.57 Distance ly 158.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)35.43y± 0.13 Periastron (T)2009.86y± 0.02 Semi-major axis (a)0.3074a± 0.0014
Eccentricity (e)0.409± 0.003 Inclination (i)27.5°± 0.8 Longitude of periastron (ω)350.1°± 1.9
Node (Ω)139°± 1.8 Notesn ReferenceTok2020e
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 346.9 0.360
2001 353.2 0.340
2002 0.4 0.317
2003 8.8 0.292
2004 18.8 0.266
2005 31.0 0.240
2006 46.0 0.216
2007 64.4 0.197
2008 86.0 0.184
2009 109.6 0.180
2010 133.5 0.182
2011 156.5 0.186
2012 178.0 0.195
2013 197.4 0.207
2014 214.3 0.223
2015 228.6 0.244
2016 240.6 0.266
2017 250.7 0.288
2018 259.4 0.311
2019 266.9 0.332
2020 273.6 0.352
2021 279.5 0.370
2022 285.0 0.386
2023 290.0 0.400
2024 294.7 0.411
2025 299.2 0.420
2026 303.6 0.427
2027 307.8 0.431
2028 312.0 0.432
2029 316.1 0.431
2030 320.4 0.427


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


 
  


wds11446-4925c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 11446-4925 RST 9004 AB (V838 Cen) : NOTES
 
 
discov_num notes refcode
RST9004 Originally published as RST3558a and previously listed in the WDS
under duplicate designation RST3558.
Assuming the revised Hipparcos parallax of 20.6 +/- 2.1 mas, Wollert
et al. (2014) find the system mass is 2.6 +/- 0.8 Msun, the semi-major
axis 14.9 +/- 1.6 au. Spectral types at K0 +/- 1 and K5 +/- 1. Some
evidence is found for an unseen third component. Wol2014
 
 
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
Wol2014 Cl j Wollert, M., Brandner, W., Reffert, S., Schlieder, J.E., Mohler-Fischer, M., 2014A&A...564A..10W
Wol2014 +A Kohler, R., & Henning, T.
Wol2014 +orb A&A 564, A10, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 DAM Damm, F.
403 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11446-4925 RST9004 AB 1991 10 306 0.4 9.35 10.64 K0/1V NOD 114438.59-492502.4
11446-4925 RST9004 AB 2009 11 116 0.2 9.35 10.64 K0/1V NOD 114438.59-492502.4
11446-4925 RST9004 AB 2011 13 337 0.2 9.35 10.64 K0/1V NOD 114438.59-492502.4
11446-4925 RST9004 AB 2013 14 200 0.2 9.35 10.64 K0/1V NOD 114438.59-492502.4
11446-4925 RST9004 AB 2014 19 215 0.2 9.35 10.64 K0V+K5V NO 114438.59-492502.4
11446-4925 RST9004 AB 2015 20 231 0.2 9.35 10.64 K0V+K5V NO 114438.59-492502.4
11446-4925 RST9004 AB 2016 21 251 0.3 9.35 10.64 K0V+K5V NO 114438.59-492502.4
11446-4925 RST9004 AB 2018 22 263 0.3 9.35 10.64 K0V+K5V NO 114438.59-492502.4
11446-4925 RST9004 AB 2019 24 273 0.4 9.35 10.64 K0V+K5V NO 114438.59-492502.4
11446-4925 RST9004 AB 2021 25 281 0.4 9.35 10.64 K0V+K5V NO 114438.59-492502.4

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

 
 
WDS 11446-4925 RST 9004 AB (V838 Cen) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11446-4925 RST 9004 AB (V838 Cen) : MEASURES
 
 
No records found.

 
 
WDS 11446-4925 (V838 Cen) : VIRTUAL EYEPIECE
 
 

11446-4925 RST9004A mag 9.35 Sp K0V 11446-4925 RST9004B sep 0.2 P.A. 287.20 mag 10.64 Sp K5V 11446-4925 RST9004C sep 14.2 P.A. 24.20 mag 13.5 11446-4925 DAM 560D sep 7.5 P.A. 154.00 mag 14 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 11446-4925 (V838 Cen) : ALADIN DSS IMAGE @ 11h 44m 38.59s -49° 25' 02.4"
 
 
 
 
WDS 11446-4925 RST 9004 AB (V838 Cen) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11446-4925 RST9004AB distance=0' 11459-4936 RST 553 distance=17' 11472-4929 RSS 273 distance=25' 11456-4901 HDS1660 distance=27' 11432-4858 BRT 802 distance=31' 11479-4914 CPO 334 distance=34' 11481-4909 DAM 561 distance=38' 11474-4953 ZUC 2AC distance=39' 11474-4953 CVN 44AB distance=39' 11406-4931 VSP 31 distance=40' 11487-4930 RST5573 distance=40' 11480-4902 HJ 4473A,BC distance=41' 11480-4902 DAW 12BC distance=41' 11444-4844 TDS8012 distance=41' 11493-4919 HDS1668 distance=46' 11437-4839 RST 552 distance=47' 11490-4906 TDS8044 distance=47' 11436-4837 DAM 558 distance=50' 11402-4950 TDS7981 distance=51' 11442-4832 TDS8010 distance=54' 11501-4933 JNN 162AB distance=54' 11413-5012 I 308 distance=58' 11502-4951 SWR 118 distance=60' 11422-5021 TDS8001 distance=61' 11480-5017 TDS8031 distance=62' 11504-4957 TDS8062 distance=65' 11450-4818 NSN 291AB distance=68' 11449-4817 LDS 363 distance=68' 11463-4817 RST 554 distance=71' 11378-4855 HJ 4459 distance=73' 11371-4942 RST4947 distance=75' 11384-5011 SKF 833 distance=77' 11511-5010 CPO 336 distance=77' 11399-5029 RST4949 distance=79' 11419-5042 TDS7995 distance=82' 11362-4939 NSN 290AB distance=84' 11495-4815 HJ 4476 distance=85' 11417-5047 CPO 332 distance=87' 11500-4813 SKF 834 distance=90' 11527-4840 SEE 138AB distance=92' 11527-4840 I 9023AC distance=92' 11495-5049 CPO 335 distance=97' 11351-4955 TDS7938 distance=98' 11369-5029 TDS7958 distance=99' 11398-4758 RSS 270 distance=100' 11533-5018 RST 559AB distance=100' 11533-5018 DAM 563AB,C distance=100' 11544-4856 RST 561 distance=101' 11343-4925 HJ 4453 distance=101' 11532-4828 TDS8093 distance=103' 11354-5014 TDS7941 distance=103' 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 11446-4925 RST9004 AB 281 0.4
Show 11446-4925 RST9004 AB,C 35 15.7
Show 11446-4925 DAM 560 AB,D 143 8.5
Show 11459-4936 RST 553 28 2.2 17
Show 11472-4929 RSS 273 20.4 25
Show 11456-4901 HDS1660 193 0.2 27
Show 11432-4858 BRT 802 16 5.2 31
Show 11479-4914 CPO 334 53 3.5 34
Show 11481-4909 DAM 561 252 7.9 38
Show 11474-4953 ZUC 2 AC 268 37.7 39
Show 11474-4953 CVN 44 AB 306 3.5 39
Show 11406-4931 VSP 31 57 0.2 40
Show 11487-4930 RST5573 3 4.8 40
Show 11480-4902 HJ 4473 A,BC 116 17.5 41
Show 11480-4902 DAW 12 BC 118 2.6 41
Show 11444-4844 TDS8012 342 0.9 41
Show 11493-4919 HDS1668 167 1.7 46
Show 11437-4839 RST 552 293 2.0 47
Show 11490-4906 TDS8044 191 0.9 47
Show 11436-4837 DAM 558 277 3.3 50
Show 11402-4950 TDS7981 24 0.9 51
Show 11442-4832 TDS8010 219 0.9 54
Show 11501-4933 JNN 162 AB 265 1.2 54
Show 11413-5012 I 308 119 1.4 58
Show 11502-4951 SWR 118 148 11.1 60
Show 11422-5021 TDS8001 163 1.4 61
Show 11480-5017 TDS8031 220 0.7 62
Show 11504-4957 TDS8062 239 0.5 65
Show 11450-4818 NSN 291 AB 87 1.1 68
Show 11449-4817 LDS 363 41 85.4 68
Show 11463-4817 RST 554 327 0.5 71
Show 11378-4855 HJ 4459 162 12.7 73
Show 11371-4942 RST4947 24 0.3 75
Show 11384-5011 SKF 833 149 52.3 77
Show 11511-5010 CPO 336 316 6.9 77
Show 11399-5029 RST4949 28 1.0 79
Show 11419-5042 TDS7995 16 1.7 82
Show 11362-4939 NSN 290 AB 226 10.1 84
Show 11495-4815 HJ 4476 171 19.7 85
Show 11417-5047 CPO 332 358 6.6 87
Show 11500-4813 SKF 834 291 25.9 90
Show 11527-4840 SEE 138 AB 170 2.3 92
Show 11527-4840 I 9023 AC 294 26.1 92
Show 11495-5049 CPO 335 14 7.5 97
Show 11351-4955 TDS7938 79 0.6 98
Show 11369-5029 TDS7958 38 0.8 99
Show 11398-4758 RSS 270 253 9.6 100
Show 11533-5018 RST 559 AB 216 1.9 100
Show 11533-5018 DAM 563 AB,C 207 8.1 100
Show 11544-4856 RST 561 78 0.6 101
Show 11343-4925 HJ 4453 309 9.1 101

 
 
WDS 11446-4925 : COMPONENTS
 
 
  A B C
B pa=287.2°
sep=0.25"
 
C pa=24.2°
sep=14.17"
pa=25.3°
sep=14.21"
 
D pa=154.0°
sep=7.52"
pa=152.6°
sep=7.70"
pa=187.3°
sep=19.85"
 
 
11446-4925 A
 
 
Name V838 Cen Coord arcsec 2000 114438.59-492502.4 Mag 9.35 Spectral class K0V (yellow-orange)
PmRA -139.00 PmDE -49.0 SAO 222993 HIP 57269
Tycho2 8223-00048-1 HD 102077 CD CD-48 6770 CP CP-48 4174
Tycho2
Tycho2 8223-00048-1 Pflag RAmdeg 176.16026845 DEmdeg -49.41741532
PmRA -128.9 PmDE -43.0 E RAmdeg 10 E DEmdeg 9
E pmRA 1.3 E pmDE 1.1 EpRAm 1990.37 EpDEm 1990.13
Num 8 Q RAmdeg 0.6 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.7 BTmag 10.140 E BTmag 0.022 VTmag 9.115
E VTmag 0.015 Prox 999 TYC T HIP 57269
CCDM AB RAdeg 176.16073417 DEdeg -49.41731528 EpRA 1990 1.55
EpDE 1990 1.63 E RAdeg 10.1 E DEdeg 9.1 Posflg
Corr -0.1
SAO
SAO 222993 DelFlag RA1950 PmRA1950 -0.0131
DE1950 PmDE1950 -0.063 Vmag 8.7 SpType K0
Double code Source 48 CatNum 9792 DM CP-48 4174
DMcomp BDsup HD 102077 M HD 0
GC RA1950rad 3.06385472 DE1950rad -0.85764229 PmRA2000 -0.0129
PmDE2000 -0.06
Hipparcos
Catalog H HIP 57269 Proxy H RAhms 11 44 38.59
DEdms -49 25 02.4 Vmag 8.91 VarFlag 2 R Vmag H
RAdeg 176.161 DEdeg -49.4173 AstroRef A Plx 20.55
CCDM 11446-4925 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 306 Rho 0.428 HD 102077 BD
CD CD-48 6770 CP CP-48 4174 Dm number -48 6770 VIred 0.95
SpType K0/K1Vp R SpType Coord arcsec 2000 114438.59-492502.4
Hipparcos 2
HIP 57269 Sn 15 So 3 Nc 2
RArad 3.0745855647 DErad -0.8624949339 Plx 20.59 PmRA -137.84
PmDE -45.33 E RArad 1.15 E DErad 1.34 E Plx 2.14
E pmRA 1.51 E pmDE 1.6 Hpmag 9.0577 E Hpmag 0.0034
SHp 0.039 VA 2 BV 0.91 E BV 0.001
VI 0.95
CCDM
Ccdm 11446-4925 RComp Comp A Note1
Note2 Discov num DRAs 2.51 DDEs -4.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.2 Sp K0 PmNote *
PmRA -129 PmDE -63 Dm number -48 6770 Cat1 CD
Name2 222993 Cat2 SAO HD 102077 M HD
ADS BDS M ADS BDS N IDS IDS 11397S4852A
HIC 57269
 
 
11446-4925 B
 
 
Coord arcsec 2000 114438.57-492502.3 Mag 10.64 Spectral class K5V (yellow-orange) Calc delta mag 1.29
Calc coord yes
CCDM
Ccdm 11446-4925 RComp Comp B Note1 *
Note2 Discov num RST3558 DRAs DDEs
R dRAs Year 1949 Theta 270 Rho 0.2
Obs 2 Vmag 9.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 11397S4852B
HIC 57269
 
 
11446-4925 C
 
 
Coord arcsec 2000 114439.19-492449.5 Mag 13.5 PmRA -27.00 PmDE 52.0
Calc delta mag 4.15 Calc coord yes
CCDM
Ccdm 11446-4925 RComp Comp C Note1
Note2 Discov num RST3558 DRAs DDEs
R dRAs Year 1930 Theta 349 Rho 9.6
Obs 1 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 11397S4852C
HIC 57269
 
 
11446-4925 D
 
 
Coord arcsec 2000 114438.93-492509.2 Mag 14 PmRA -145.00 PmDE -34.0
Calc delta mag 4.65 Calc coord yes