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Current system
08549+2612
A 2131 AB


Nearby doubles
48' : 08584+2602
STJ 49

49' : 08581+2634
A 1973

49' : 08536+2656
COU1119AB

49' : 08520+2543
STTA 96AB

55' : 08526+2527
BRT3289

70' : 09000+2626
A 1975

71' : 08587+2523
A 1974

71' : 08497+2621
SLW 302

71' : 08588+2524
LLO 8

76' : 08575+2720
COU1120

78' : 08586+2711
ZHN 4

83' : 08550+2450
CVR 514

83' : 08488+2611
SKF 729

84' : 08488+2627
SLW 298

86' : 08517+2458
TDS 496

92' : 08564+2741
SKF 747

95' : 09019+2612
STF1301

102' : 08478+2539
SLW 295

104' : 08494+2723
LDS3822

111' : 08471+2645
HJ 458

111' : 08534+2423
POU3017

112' : 08580+2428
OSO 23AB

114' : 08472+2657
SKF 724

115' : 08597+2437
COU 932

122' : 08533+2811
BVD 73

124' : 08461+2644
SLW 289



Selections
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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.

08549+2612 A 2131 AB

 
 
08h 54m 55.99s +26° 11' 53.8" P.A. 335.00 sep 0.2 mag 6.95,9.02 Sp G2V+K0V dist. 49.02 pc (159.9 l.y.)
 
 
Coord 2000 08549+2612 Discov num A  2131 Comp AB Coord arcsec 2000 08 54 55.99 +26 11 53.8
Date first 1910 Date last 2014 Obs 94
Pa first 255 Pa last 334.6 P.A. Now (θ) 153.9°
Sep first 0.3 Sep last 0.214 Sep. Now (ρ) 0.269"
Mag pri 6.95 Mag sec 9.02 delta mag (ΔM) 2.07 Spectral class G2V+K0V (yellow/yellow-orange)
Pri motion ra +061 Sec motion ra +054
Pri motion dec -451 Sec motion dec -441
Notes N O (See Notes, Orbital solution)
rPM=0.027 (< 0.3, Physical double)
This double is physical.
 
 
08549+2612 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 80503 08 54 56 +26 11 54 A 2131 AB 2014 94 335 0.2 6.95 9.02 2.07 Y <===
Show 80503 08 54 56 +26 11 54 HO 357 AB,C 2011 8 359 83.3 6.75 13.66 6.91
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cancer SAO 80503 HIP 43766 Tycho2 1946-01937-1
HD 76095 GC 12310 ADS 7082 BD BD+26 1865
Distance 49.02 Distance ly 159.9
 
 
ORBITAL ELEMENTS
 
 
Period (P)45.02y Periastron (T)1973.16y Semi-major axis (a)0.347a
Eccentricity (e)0.475 Inclination (i)43.5° Longitude of periastron (ω)257.5°
Node (Ω)162.1° Notesn ReferenceMsn2000a
Equinox Last observation1997 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 254.5 0.361
2001 259.3 0.357
2002 264.2 0.353
2003 269.1 0.349
2004 274.2 0.345
2005 279.4 0.341
2006 284.8 0.337
2007 290.3 0.332
2008 295.9 0.327
2009 301.8 0.321
2010 307.9 0.313
2011 314.4 0.303
2012 321.4 0.291
2013 329.0 0.275
2014 337.8 0.254
2015 348.4 0.228
2016 2.0 0.197
2017 21.2 0.163
2018 49.1 0.137
2019 83.3 0.136
2020 111.8 0.162
2021 131.1 0.198
2022 144.2 0.236
2023 153.9 0.269
2024 161.5 0.297
2025 168.0 0.321
2026 173.6 0.340
2027 178.6 0.356
2028 183.3 0.368
2029 187.7 0.378
2030 192.0 0.385


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


 
  


wds08549%2B2612a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08549+2612 A 2131 AB : NOTES
 
 
discov_num notes refcode
A 2131 See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.43 +/- 0.47, 2.30, and 1.85 Msun, respectively. Mlk2012
HO 357 AB,C: Optical pair, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
AB,C: Rectilinear solution by Hurowitz et al. (2014). USN2014a
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Msn2000a orb - Mason, B.D. 2000IAUDS.141....2M
Msn2000a Inf. Circ. 141, 2, 2000
USN2014a lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.182....1H
USN2014a Inf. Circ. 182, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
312 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08549+2612 A 2131 AB 1997 89 244 0.4 6.95 9.02 G2V+K0V NOD 085455.95+261157.8
08549+2612 A 2131 AB 2005 91 281 0.4 6.95 9.02 G2V+K0V NOD 085455.95+261157.8
08549+2612 A 2131 AB 2008 92 294 0.3 6.95 9.02 G2V K0V NOD 085455.95+261157.8
08549+2612 A 2131 AB 2014 94 335 0.2 6.95 9.02 G2V+K0V NO 085455.99+261153.8

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

 
 
WDS 08549+2612 A 2131 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08549+2612 A 2131 AB : MEASURES
 
 
No records found.

 
 
WDS 08549+2612 : VIRTUAL EYEPIECE
 
 

08549+2612 A 2131A mag 6.95 Sp G2V 08549+2612 A 2131B sep 0.2 P.A. 336.90 mag 9.02 Sp K0V 08549+2612 HO 357C sep 83.3 P.A. 358.70 mag 13.66 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 08549+2612 : ALADIN DSS IMAGE @ 08h 54m 55.99s +26° 11' 53.8"
 
 
 
 
WDS 08549+2612 A 2131 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08549+2612 A 2131AB distance=0' 08584+2602 STJ 49 distance=48' 08581+2634 A 1973 distance=49' 08536+2656 COU1119AB distance=49' 08520+2543 STTA 96AB distance=49' 08520+2543 STTA 96AC distance=49' 08520+2543 STTA 96BC distance=49' 08526+2527 BRT3289 distance=55' 09000+2626 A 1975 distance=70' 08587+2523 A 1974 distance=71' 08497+2621 SLW 302 distance=71' 08588+2524 LLO 8 distance=71' 08575+2720 COU1120 distance=76' 08586+2711 ZHN 4 distance=78' 08550+2450 CVR 514 distance=83' 08488+2611 SKF 729 distance=83' 08488+2627 SLW 298 distance=84' 08517+2458 TDS 496 distance=86' 08564+2741 SKF 747 distance=92' 09019+2612 STF1301 distance=95' 08478+2539 SLW 295 distance=102' 08494+2723 LDS3822 distance=104' 08471+2645 HJ 458 distance=111' 08534+2423 POU3017 distance=111' 08580+2428 OSO 23AB distance=112' 08580+2428 OSO 23AC distance=112' 08472+2657 SKF 724 distance=114' 08597+2437 COU 932 distance=115' 08533+2811 BVD 73 distance=122' 08461+2644 SLW 289 distance=124' 08468+2718 TDS6091 distance=128' 08525+2816 HJ 460AB distance=128' 08525+2816 HJ 460AC distance=128' 08454+2602 FMR 208 distance=130' 08584+2411 POU3022 distance=130' 08454+2635 GRV 766 distance=130' 08461+2519 HO 251 distance=131' 08461+2521 A 2130AB distance=131' 08461+2521 A 2130AC distance=131' 08526+2820 LDS6219 (Copernicus) distance=132' 09050+2622 TDS6299 distance=136' 08507+2409 POU3013 distance=137' 08530+2358 POU3016 distance=137' 09015+2427 OCC9037 distance=138' 09018+2754 SHJ 101 distance=138' 08473+2440 CVR 505 distance=139' 08527+2827 STF1288 distance=139' 08460+2725 BRT 152 distance=140' 09009+2417 COU 933 distance=141' 08462+2736 CBL 32 distance=144' 09038+2735 HJ 803 distance=147' 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 08549+2612 A 2131 AB 335 0.2
Show 08549+2612 HO 357 AB,C 359 83.3
Show 08584+2602 STJ 49 48 1.2 48
Show 08581+2634 A 1973 103 1.2 49
Show 08536+2656 COU1119 AB 277 2.6 49
Show 08520+2543 STTA 96 AB 312 50.0 49
Show 08520+2543 STTA 96 AC 267 35.6 49
Show 08520+2543 STTA 96 BC 179 36.5 49
Show 08526+2527 BRT3289 11 5.7 55
Show 09000+2626 A 1975 85 4.1 70
Show 08587+2523 A 1974 174 0.2 71
Show 08497+2621 SLW 302 68 164.0 71
Show 08588+2524 LLO 8 302 0.6 71
Show 08575+2720 COU1120 317 1.0 76
Show 08586+2711 ZHN 4 169 15.3 78
Show 08550+2450 CVR 514 57 13.8 83
Show 08488+2611 SKF 729 212 1.3 83
Show 08488+2627 SLW 298 300 13.6 84
Show 08517+2458 TDS 496 345 1.1 86
Show 08564+2741 SKF 747 286 1.2 92
Show 09019+2612 STF1301 9.9 95
Show 08478+2539 SLW 295 77 19.3 102
Show 08494+2723 LDS3822 284 36.6 104
Show 08471+2645 HJ 458 306 20.3 111
Show 08534+2423 POU3017 243 5.6 111
Show 08580+2428 OSO 23 AB 341 25.4 112
Show 08580+2428 OSO 23 AC 283 19.4 112
Show 08472+2657 SKF 724 5 1.0 114
Show 08597+2437 COU 932 159 0.3 115
Show 08533+2811 BVD 73 233 29.7 122
Show 08461+2644 SLW 289 200 166.1 124
Show 08468+2718 TDS6091 108 0.6 128
Show 08525+2816 HJ 460 AB 335 43.7 128
Show 08525+2816 HJ 460 AC 20 276.8 128
Show 08454+2602 FMR 208 269 4.2 130
Show 08584+2411 POU3022 293 3.9 130
Show 08454+2635 GRV 766 16 48.3 130
Show 08461+2519 HO 251 152 3.9 131
Show 08461+2521 A 2130 AB 45 0.8 131
Show 08461+2521 A 2130 AC 318 15.5 131
Show Copernicus 08526+2820 LDS6219 128 84.8 132
Show 09050+2622 TDS6299 325 0.6 136
Show 08507+2409 POU3013 299 6.8 137
Show 08530+2358 POU3016 316 20.7 137
Show 09015+2427 OCC9037 12 0.0 138
Show 09018+2754 SHJ 101 329 103.9 138
Show 08473+2440 CVR 505 164 25.7 139
Show 08527+2827 STF1288 259 7.7 139
Show 08460+2725 BRT 152 293 9.3 140
Show 09009+2417 COU 933 139 0.4 141
Show 08462+2736 CBL 32 174 41.0 144

 
 
WDS 08549+2612 : COMPONENTS
 
 
  A B
B pa=336.9°
sep=0.21"
 
C pa=358.7°
sep=83.33"
pa=358.7°
sep=83.14"
 
 
08549+2612 A
 
 
Coord arcsec 2000 085455.99+261153.8 Mag 6.95 Spectral class G2V (yellow) PmRA 61.00
PmDE -451.0 SAO 80503 HIP 43766 Tycho2 1946-01937-1
HD 76095 GC 12310 BD BD+26 1865
Tycho2
Tycho2 1946-01937-1 Pflag RAmdeg 133.73324559 DEmdeg 26.19830016
PmRA 53.6 PmDE -440.9 E RAmdeg 4 E DEmdeg 5
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.67 EpDEm 1991.22
Num 11 Q RAmdeg 1.5 Q DEmdeg 1.6 Q pmRA 1.6
Q pmDE 1.5 BTmag 7.561 E BTmag 0.016 VTmag 6.828
E VTmag 0.011 Prox 999 TYC T HIP 43766
CCDM AB RAdeg 133.73311056 DEdeg 26.19933889 EpRA 1990 1.84
EpDE 1990 1.52 E RAdeg 4.2 E DEdeg 5.0 Posflg P
Corr 0.1
SAO
SAO 80503 DelFlag RA1950 PmRA1950 0.0046
DE1950 PmDE1950 -0.46 Vmag 6.7 SpType G0
Double code Source 70 CatNum 12310 DM BD+26 1865
DMcomp BDsup HD 76095 M HD 0
GC 12310 RA1950rad 2.32114755 DE1950rad 0.46068621 PmRA2000 0.0044
PmDE2000 -0.457
Hipparcos
Catalog H HIP 43766 Proxy H RAhms 08 54 55.95
DEdms +26 11 57.8 Vmag 6.73 VarFlag R Vmag G
RAdeg 133.733 DEdeg 26.1994 AstroRef A Plx 21.7
CCDM 08549+2612 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 217 Rho 0.392 HD 76095 BD BD+26 1865
CD CP Dm number +26 1865 VIred 0.79
SpType G5V R SpType Coord arcsec 2000 085455.95+261157.8
Hipparcos 2
HIP 43766 Sn 15 So 3 Nc 2
RArad 2.334083184 DErad 0.4572655462 Plx 20.4 PmRA 60.52
PmDE -450.68 E RArad 0.93 E DErad 0.58 E Plx 0.94
E pmRA 1.04 E pmDE 0.86 Hpmag 6.8645 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.665 E BV 0.009
VI 0.79
CCDM
Ccdm 08549+2612 RComp Comp A Note1
Note2 Discov num DRAs 1.94 DDEs -7.5
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.0 Sp G0 PmNote *
PmRA 49 PmDE -457 Dm number +26 1865 Cat1 BD
Name2 +26 969 Cat2 AGK2/3 HD 76095 M HD
ADS BDS A 7082 M ADS BDS N IDS IDS 08490N2636A
HIC 43766
 
 
08549+2612 B
 
 
Coord arcsec 2000 085455.98+261154.0 Mag 9.02 Spectral class K0V (yellow-orange) PmRA 54.00
PmDE -441.0 Calc delta mag 2.07 Calc coord yes
CCDM
Ccdm 08549+2612 RComp Comp B Note1 *
Note2 Discov num A 2131 DRAs DDEs
R dRAs Year 1910 Theta Rho
Obs 99 Vmag 8.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7082 M ADS BDS N IDS IDS 08490N2636B
HIC 43766
 
 
08549+2612 C
 
 
Coord arcsec 2000 085455.84+261317.1 Mag 13.66 Calc delta mag 6.71 Calc coord yes
CCDM
Ccdm 08549+2612 RComp Comp C Note1
Note2 Discov num HO 357 DRAs 1.88 DDEs 71.5
R dRAs 65 Year 1925 Theta 003 Rho 44.0
Obs 5 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7082 M ADS BDS N IDS IDS 08490N2636C
HIC