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Doubles in session


Current system
15544-6131
HDS 2240
HD 141806


Nearby doubles
23' : 15518-6145
LPO 52

25' : 15535-6103
NZO 63

35' : 15510-6155
RST5031AB

36' : 15514-6103
B 9025

47' : 15549-6045
SLR 11AB

47' : 16002-6110
LDS 545

59' : 15520-6227
FIN 236

61' : 16025-6147
TDS 798

71' : 16040-6151
TDS9745

73' : 16044-6146
RST5039

73' : 16045-6144
RST5040

81' : 16052-6109
HDS2272

81' : 15555-6011
HJ 4813

83' : 15577-6012
MOC 9AB

84' : 15442-6213
TDS 785

84' : 15428-6147
HDS2218AB

86' : 16053-6207
RST5041

89' : 15560-6004
RST5034

89' : 15568-6258
LDS 544

90' : 16034-6030
ARY 120

91' : 16005-6012
RST5038

91' : 15522-6002
JAW 40

92' : 16037-6030
RSS 29

92' : 16070-6150
RST5043

95' : 16036-6025
B 2376

95' : 15497-6002
JSP 668



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.

15544-6131 HDS 2240 (HD 141806)

 
 
15h 54m 24.71s -61° 31' 05.8" P.A. 244.00 sep 0.0 mag 10.38,10.64 Sp G2/G3V dist. 112.61 pc (367.33 l.y.)
 
 
Coord 2000 15544-6131 Discov num HDS2240 Comp Coord arcsec 2000 15 54 24.71 -61 31 05.8
Date first 1991 Date last 2021 Obs 9
Pa first 12 Pa last 244 P.A. Now (θ) 244°
Sep first 0.3 Sep last 0.033 Sep. Now (ρ) 0.033"
Mag pri 10.38 Mag sec 10.64 delta mag (ΔM) 0.26 Spectral class G2/G3V (yellow)
Pri motion ra -023 Sec motion ra
Pri motion dec +036 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 141806 Constellation Triangulum Australe SAO 253337 HIP 77890
Tycho2 9023-01538-1 Gaia DR2 5832607614273523840 HD 141806 CP CP-61 5362
Distance 112.61 Distance ly 367.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)80y Periastron (T)2020.49y Semi-major axis (a)0.191a
Eccentricity (e)0.83 Inclination (i)0° Longitude of periastron (ω)0°
Node (Ω)182.8° Notes ReferenceTok2020g
Equinox2000 Last observation2020 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 19.3 0.291
2001 20.4 0.284
2002 21.6 0.277
2003 22.8 0.270
2004 24.1 0.262
2005 25.5 0.254
2006 26.9 0.245
2007 28.5 0.236
2008 30.2 0.226
2009 32.1 0.215
2010 34.2 0.204
2011 36.6 0.192
2012 39.2 0.179
2013 42.3 0.165
2014 46.0 0.150
2015 50.5 0.135
2016 56.3 0.117
2017 64.2 0.099
2018 76.0 0.078
2019 96.9 0.056
2020 143.3 0.036
2021 223.7 0.037
2022 269.3 0.057
2023 289.9 0.079
2024 301.6 0.099
2025 309.4 0.118
2026 315.2 0.135
2027 319.7 0.151
2028 323.3 0.165
2029 326.4 0.179
2030 329.1 0.192


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


 
  


wds15544-6131b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15544-6131 HDS 2240 (HD 141806) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020g orb - Tokovinin, A. 2020IAUDS.201....1A
Tok2020g Inf. Circ. 201, 1, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15544-6131 HDS2240 1991 1 12 0.3 10.38 10.64 G2/G3V D 155424.71-613105.8
15544-6131 HDS2240 2017 3 70 0.1 10.38 10.64 G2/G3V 155424.71-613105.8
15544-6131 HDS2240 2018 4 79 0.1 10.38 10.64 G2/G3V 155424.71-613105.8
15544-6131 HDS2240 2019 5 98 0.1 10.38 10.64 G2/G3V O 155424.71-613105.8
15544-6131 HDS2240 2020 7 160 0.0 10.38 10.64 G2/G3V O 155424.71-613105.8
15544-6131 HDS2240 2021 9 244 0.0 10.38 10.64 G2/G3V O 155424.71-613105.8

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

 
 
WDS 15544-6131 HDS 2240 (HD 141806) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15544-6131 HDS 2240 (HD 141806) : MEASURES
 
 
No records found.

 
 
WDS 15544-6131 (HD 141806) : VIRTUAL EYEPIECE
 
 

15544-6131 HDS2240A mag 10.38 Sp G2/G3V 15544-6131 HDS2240B mag 10.64 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 15544-6131 (HD 141806) : ALADIN DSS IMAGE @ 15h 54m 24.71s -61° 31' 05.8"
 
 
 
 
WDS 15544-6131 HDS 2240 (HD 141806) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15544-6131 HDS2240 distance=0' 15518-6145 LPO 52 distance=23' 15535-6103 NZO 63 distance=25' 15510-6155 RST5031AB distance=35' 15514-6103 B 9025 distance=36' 15549-6045 SLR 11AB distance=47' 15549-6045 DUN 194AC distance=47' 15549-6045 DUN 194AD distance=47' 16002-6110 LDS 545 distance=47' 15520-6227 FIN 236 distance=59' 16025-6147 TDS 798 distance=61' 16040-6151 TDS9745 distance=71' 16044-6146 RST5039 distance=73' 16045-6144 RST5040 distance=73' 16052-6109 HDS2272 distance=81' 15555-6011 HJ 4813 distance=81' 15577-6012 MOC 9AB distance=83' 15577-6012 MOC 9AC distance=83' 15442-6213 TDS 785 distance=84' 15428-6147 HDS2218AB distance=84' 16053-6207 RST5041 distance=86' 15560-6004 RST5034 distance=89' 15568-6258 LDS 544 distance=89' 16034-6030 ARY 120 distance=90' 16005-6012 RST5038 distance=91' 15522-6002 JAW 40 distance=91' 16037-6030 RSS 29 distance=92' 16070-6150 RST5043 distance=92' 16036-6025 B 2376 distance=95' 15497-6002 JSP 668 distance=95' 15529-6307 HDS2236AB distance=97' 16054-6034 TDS9751 distance=98' 15537-6311 RST5400AB distance=100' 15537-6311 HLN 37AC distance=100' 15481-6002 TDS9631 distance=100' 16046-6024 JSP 682 distance=101' 16085-6130 I 556 distance=101' 16079-6105 B 2379 distance=101' 16009-5959 JSP 679 distance=104' 15592-6310 KPP 891 distance=105' 15398-6106 KPP 652 distance=109' 16028-6002 JSP 680 distance=109' 16063-6022 RST5042 distance=111' 16079-6237 LDS 549 distance=111' 16099-6143 TDS9779 distance=112' 15540-5937 RST5033 distance=114' 15551-6326 LDS 542 distance=115' 15447-5959 LDS 537 distance=117' 15557-5934 TDS9692 distance=118' 16004-5941 WFC 172 distance=119' 15450-6312 FIN 299AB distance=121' 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 15544-6131 HDS2240 244 0.0
Show 15518-6145 LPO 52 213 3.3 23
Show 15535-6103 NZO 63 210 8.6 25
Show 15510-6155 RST5031 AB 92 2.5 35
Show 15514-6103 B 9025 101 6.3 36
Show 15549-6045 SLR 11 AB 95 1.3 47
Show 15549-6045 DUN 194 AC 47 44.5 47
Show 15549-6045 DUN 194 AD 256 48.4 47
Show 16002-6110 LDS 545 75 16.0 47
Show 15520-6227 FIN 236 290 1.0 59
Show 16025-6147 TDS 798 58 0.8 61
Show 16040-6151 TDS9745 43 10.0 71
Show 16044-6146 RST5039 309 1.5 73
Show 16045-6144 RST5040 65 0.6 73
Show 16052-6109 HDS2272 88 0.8 81
Show 15555-6011 HJ 4813 103 4.8 81
Show 15577-6012 MOC 9 AB 329 1.6 83
Show 15577-6012 MOC 9 AC 317 4.8 83
Show 15442-6213 TDS 785 35 1.0 84
Show 15428-6147 HDS2218 AB 205 0.1 84
Show 16053-6207 RST5041 94 3.9 86
Show 15560-6004 RST5034 229 0.6 89
Show 15568-6258 LDS 544 67 16.2 89
Show 16034-6030 ARY 120 295 14.9 90
Show 16005-6012 RST5038 77 1.4 91
Show 15522-6002 JAW 40 185 10.9 91
Show 16037-6030 RSS 29 179 53.0 92
Show 16070-6150 RST5043 11 3.8 92
Show 16036-6025 B 2376 309 0.6 95
Show 15497-6002 JSP 668 104 0.6 95
Show 15529-6307 HDS2236 AB 142 0.6 97
Show 16054-6034 TDS9751 242 2.5 98
Show 15537-6311 RST5400 AB 194 3.6 100
Show 15537-6311 HLN 37 AC 181 9.1 100
Show 15481-6002 TDS9631 218 1.0 100
Show 16046-6024 JSP 682 140 3.3 101
Show 16085-6130 I 556 323 1.3 101
Show 16079-6105 B 2379 158 6.1 101
Show 16009-5959 JSP 679 135 0.9 104
Show 15592-6310 KPP 891 292 7.4 105
Show 15398-6106 KPP 652 294 5.9 109
Show 16028-6002 JSP 680 40 0.2 109
Show 16063-6022 RST5042 47 1.2 111
Show 16079-6237 LDS 549 180 8.0 111
Show 16099-6143 TDS9779 307 1.9 112
Show 15540-5937 RST5033 237 0.3 114
Show 15551-6326 LDS 542 233 152.1 115
Show 15447-5959 LDS 537 124 23.5 117
Show 15557-5934 TDS9692 114 1.2 118
Show 16004-5941 WFC 172 201 9.9 119
Show 15450-6312 FIN 299 AB 255 0.2 121

 
 
WDS 15544-6131 : COMPONENTS
 
 
  A
B pa=224.4°
sep=0.02"
 
 
15544-6131 A
 
 
Componente originario normalizzato AB Name HD 141806 Coord arcsec 2000 155424.71-613105.8 Mag 10.38
Spectral class G2/G3V (yellow) PmRA -23.00 PmDE 36.0 SAO 253337
HIP 77890 Tycho2 9023-01538-1 HD 141806 CP CP-61 5362
Tycho2
Tycho2 9023-01538-1 Pflag RAmdeg 238.60289464 DEmdeg -61.51816226
PmRA -16.7 PmDE 29.2 E RAmdeg 16 E DEmdeg 15
E pmRA 1.6 E pmDE 1.6 EpRAm 1987.31 EpDEm 1988.30
Num 8 Q RAmdeg 1.1 Q DEmdeg 1.3 Q pmRA 1.1
Q pmDE 1.4 BTmag 10.464 E BTmag 0.032 VTmag 9.750
E VTmag 0.024 Prox 679 TYC T HIP 77890
CCDM AB RAdeg 238.60298000 DEdeg -61.51823194 EpRA 1990 1.48
EpDE 1990 1.54 E RAdeg 17.6 E DEdeg 16.3 Posflg P
Corr 0.1
SAO
SAO 253337 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 0.024 Vmag 9.7 SpType F8
Double code Source 43 CatNum 4764 DM CP-61 5362
DMcomp BDsup HD 141806 M HD 0
GC RA1950rad 4.14565982 DE1950rad -1.07113002 PmRA2000 -0.002
PmDE2000 0.026
Hipparcos
Catalog H HIP 77890 Proxy H RAhms 15 54 24.71
DEdms -61 31 05.8 Vmag 9.61 VarFlag R Vmag H
RAdeg 238.603 DEdeg -61.5183 AstroRef A Plx 8.43
CCDM 15544-6131 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 12 Rho 0.33 HD 141806 BD
CD CP CP-61 5362 Dm number -61 5362 VIred 0.74
SpType G2/G3V R SpType Coord arcsec 2000 155424.71-613105.8
Hipparcos 2
HIP 77890 Sn 15 So 3 Nc 2
RArad 4.1644072608 DErad -1.0736964686 Plx 8.88 PmRA -24.22
PmDE 34.37 E RArad 0.98 E DErad 1.47 E Plx 1.96
E pmRA 1.16 E pmDE 1.68 Hpmag 9.7468 E Hpmag 0.0029
SHp 0.025 VA 0 BV 0.634 E BV 0.032
VI 0.7
CCDM
Ccdm 15544-6131 RComp Comp A Note1
Note2 Discov num DRAs 0.68 DDEs -5.5
R dRAs 82 Year Theta Rho
Obs 2 Vmag 10.4 Sp G2 PmNote *
PmRA -23 PmDE 36 Dm number -61 5362 Cat1 CPD
Name2 253337 Cat2 SAO HD 141806 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 77890
 
 
15544-6131 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 155424.71-613105.8 Mag 10.64 Calc delta mag 0.26
Calc coord yes
CCDM
Ccdm 15544-6131 RComp Comp B Note1
Note2 Discov num HDS DRAs 0.70 DDEs -5.3
R dRAs 82 Year 1991 Theta 12 Rho 0.3
Obs 1 Vmag 10.6 Sp PmNote *
PmRA -16 PmDE 21 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 77890