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Doubles in session


Current system
12268-0536
A 78
HD 108320


Nearby doubles
30' : 12256-0513
UC 2334

47' : 12297-0519
VKI 18

48' : 12298-0527
B 2737

55' : 12300-0601
RST4500AB

65' : 12289-0632
OCC 759

65' : 12225-0524
LDS 406

67' : 12311-0519
A 3084

68' : 12236-0448
GWP1801

68' : 12261-0429
BU 922

84' : 12292-0421
KPP1951

85' : 12318-0617
GWP1823

87' : 12250-0414
TOK 400AB

93' : 12301-0653
UC 2350AB

101' : 12207-0452
NSN 118

109' : 12228-0405
BWL 29AB

110' : 12234-0358
RST4497

116' : 12199-0445
KPP 868

119' : 12322-0409
KPP2747AB

119' : 12206-0420
BRT 549

123' : 12256-0737
HDS1747

123' : 12256-0334
KPP 270

124' : 12270-0332
A 79AB

124' : 12349-0509
RST4502

130' : 12184-0502
LDS 402

135' : 12317-0343
HDS1761

135' : 12274-0321
GWP1810AB



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.

12268-0536 A 78 (HD 108320)

 
 
12h 26m 47.72s -05° 35' 31.6" P.A. 80.00 sep 0.3 mag 8.11,8.79 Sp F4V dist. 110.38 pc (360.06 l.y.)
 
 
Coord 2000 12268-0536 Discov num A    78 Comp Coord arcsec 2000 12 26 47.72 -05 35 31.6
Date first 1900 Date last 2016 Obs 44
Pa first 86 Pa last 80.1 P.A. Now (θ) 83.7°
Sep first 0.3 Sep last 0.339 Sep. Now (ρ) 0.358"
Mag pri 8.11 Mag sec 8.79 delta mag (ΔM) 0.68 Spectral class F4V (yellow-white)
Pri motion ra +016 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 108320 Constellation Virgo SAO 138781 HIP 60727
Tycho2 4947-01348-1 Gaia DR2 3680638096221825536 HD 108320 ADS 8551
BD BD-04 3281 Distance 110.38 Distance ly 360.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)111.93y± 1.72 Periastron (T)1997.5y± 0.4 Semi-major axis (a)0.263a± 0.005
Eccentricity (e)0.798± 0.008 Inclination (i)49.3°± 2.2 Longitude of periastron (ω)42.1°± 4.9
Node (Ω)249.9°± 3.2 Notesn ReferenceHrt2009
Equinox Last observation2007 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 26.6 0.068
2001 40.6 0.092
2002 48.8 0.115
2003 54.3 0.137
2004 58.4 0.157
2005 61.6 0.175
2006 64.2 0.191
2007 66.4 0.207
2008 68.3 0.221
2009 70.0 0.235
2010 71.5 0.248
2011 72.8 0.259
2012 74.1 0.271
2013 75.2 0.281
2014 76.3 0.291
2015 77.3 0.300
2016 78.3 0.309
2017 79.1 0.317
2018 80.0 0.325
2019 80.8 0.332
2020 81.6 0.339
2021 82.3 0.346
2022 83.0 0.352
2023 83.7 0.358
2024 84.4 0.363
2025 85.1 0.369
2026 85.7 0.373
2027 86.3 0.378
2028 86.9 0.382
2029 87.5 0.386
2030 88.1 0.390


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


 
  


wds12268-0536b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 12268-0536 A 78 (HD 108320) : NOTES
 
 
discov_num notes refcode
A 78 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.95 +/- 0.56, 2.88, and 1.25 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Hrt2009 Su j Hartkopf, W.I. & Mason, B.D. 2009AJ....138..813H
Hrt2009 +orb AJ 138, 813, 2009
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12268-0536 A 78 2006 41 65 0.2 8.11 8.79 F4V O 122647.72-053531.6
12268-0536 A 78 2009 43 72 0.2 8.11 8.79 F4V O 122647.72-053531.6
12268-0536 A 78 2016 44 80 0.3 8.11 8.79 F4V NO 122647.72-053531.6

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

 
 
WDS 12268-0536 A 78 (HD 108320) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12268-0536 A 78 (HD 108320) : MEASURES
 
 
No records found.

 
 
WDS 12268-0536 (HD 108320) : VIRTUAL EYEPIECE
 
 

12268-0536 A 78A mag 8.11 Sp F4V 12268-0536 A 78B sep 0.3 P.A. 80.10 mag 8.79 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 12268-0536 (HD 108320) : ALADIN DSS IMAGE @ 12h 26m 47.72s -05° 35' 31.6"
 
 
 
 
WDS 12268-0536 A 78 (HD 108320) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12268-0536 A 78 distance=0' 12256-0513 UC 2334 distance=30' 12297-0519 VKI 18 distance=47' 12298-0527 B 2737 distance=48' 12300-0601 RST4500AB distance=55' 12300-0601 DAM 578AC distance=55' 12289-0632 OCC 759 distance=65' 12225-0524 LDS 406 distance=65' 12311-0519 A 3084 distance=67' 12236-0448 GWP1801 distance=68' 12261-0429 BU 922 distance=68' 12292-0421 KPP1951 distance=84' 12318-0617 GWP1823 distance=85' 12250-0414 TOK 400AB distance=87' 12250-0414 NSN 123AC distance=87' 12301-0653 A 2780Aa,Ab distance=93' 12301-0653 UC 2350AB distance=93' 12207-0452 NSN 118 distance=101' 12228-0405 BWL 29AB distance=109' 12228-0405 BWL 29AC distance=109' 12228-0405 BWL 29AD distance=109' 12234-0358 RST4497 distance=110' 12199-0445 KPP 868 distance=116' 12322-0409 KPP2747AB distance=119' 12322-0409 KPP2747AC distance=119' 12322-0409 KPP2747BC distance=119' 12206-0420 BRT 549 distance=119' 12256-0737 HDS1747 distance=123' 12256-0334 KPP 270 distance=123' 12270-0332 A 79AB distance=124' 12270-0332 HJ 210AB,D distance=124' 12270-0332 A 79AB,C distance=124' 12349-0509 RST4502 distance=124' 12184-0502 LDS 402 distance=130' 12317-0343 HDS1761 distance=135' 12274-0321 GWP1810AB distance=135' 12274-0321 GWP1811AC distance=135' 12277-0315 CRC 67 distance=142' 12301-0748 DAM 852 distance=142' 12297-0320 TOK 27 distance=143' 12243-0315 KPP2748 distance=146' 12165-0542 BRT 438 distance=155' 12239-0303 HJ 209 distance=160' 12207-0749 GWP1792 distance=162' 12182-0357 STF1627 distance=163' 12302-0810 RST3794 distance=163' 12256-0818 RST3789 distance=164' 12206-0752 GWP1791 distance=166' 12159-0610 RST4495 distance=167' 12249-0251 GWP1804 distance=167' 12368-0651 UC 2371 distance=168' 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 12268-0536 A 78 80 0.3
Show 12256-0513 UC 2334 268 46.3 30
Show 12297-0519 VKI 18 139 2.6 47
Show 12298-0527 B 2737 61 8.2 48
Show 12300-0601 RST4500 AB 278 3.9 55
Show 12300-0601 DAM 578 AC 293 17.8 55
Show 12289-0632 OCC 759 -1 0.1 65
Show 12225-0524 LDS 406 176 10.4 65
Show 12311-0519 A 3084 250 0.1 67
Show 12236-0448 GWP1801 155 10.2 68
Show 12261-0429 BU 922 75 0.3 68
Show 12292-0421 KPP1951 337 15.4 84
Show 12318-0617 GWP1823 108 34.0 85
Show 12250-0414 TOK 400 AB 166 0.1 87
Show 12250-0414 NSN 123 AC 190 6.2 87
Show 12301-0653 A 2780 Aa,Ab 333 0.1 93
Show 12301-0653 UC 2350 AB 333 49.3 93
Show 12207-0452 NSN 118 212 5.5 101
Show 12228-0405 BWL 29 AB 99 0.1 109
Show 12228-0405 BWL 29 AC 220 5.4 109
Show 12228-0405 BWL 29 AD 164 4.4 109
Show 12234-0358 RST4497 296 1.8 110
Show 12199-0445 KPP 868 164 7.3 116
Show 12322-0409 KPP2747 AB 114 7.1 119
Show 12322-0409 KPP2747 AC 122 7.8 119
Show 12322-0409 KPP2747 BC 178 2.4 119
Show 12206-0420 BRT 549 234 8.3 119
Show 12256-0737 HDS1747 331 8.0 123
Show 12256-0334 KPP 270 301 3.7 123
Show 12270-0332 A 79 AB 98 0.5 124
Show 12270-0332 HJ 210 AB,D 146 24.8 124
Show 12270-0332 A 79 AB,C 322 32.1 124
Show 12349-0509 RST4502 215 0.1 124
Show 12184-0502 LDS 402 281 53.0 130
Show 12317-0343 HDS1761 120 0.7 135
Show 12274-0321 GWP1810 AB 36 72.5 135
Show 12274-0321 GWP1811 AC 71 14.9 135
Show 12277-0315 CRC 67 15 1.5 142
Show 12301-0748 DAM 852 122 17.1 142
Show 12297-0320 TOK 27 14 16.2 143
Show 12243-0315 KPP2748 318 1.9 146
Show 12165-0542 BRT 438 224 4.4 155
Show 12239-0303 HJ 209 147 23.8 160
Show 12207-0749 GWP1792 106 19.4 162
Show 12182-0357 STF1627 196 20.1 163
Show 12302-0810 RST3794 37 1.1 163
Show 12256-0818 RST3789 9 2.7 164
Show 12206-0752 GWP1791 335 7.1 166
Show 12159-0610 RST4495 103 0.4 167
Show 12249-0251 GWP1804 85 41.7 167
Show 12368-0651 UC 2371 313 18.6 168

 
 
WDS 12268-0536 : COMPONENTS
 
 
  A
B pa=80.1°
sep=0.34"
 
 
12268-0536 A
 
 
Componente originario normalizzato AB Name HD 108320 Coord arcsec 2000 122647.72-053531.6 Mag 8.11
Spectral class F4V (yellow-white) PmRA 16.00 PmDE -14.0 SAO 138781
HIP 60727 Tycho2 4947-01348-1 HD 108320 BD BD-04 3281
Tycho2
Tycho2 4947-01348-1 Pflag RAmdeg 186.69885583 DEmdeg -5.59216243
PmRA 14.2 PmDE -16.0 E RAmdeg 6 E DEmdeg 6
E pmRA 1.4 E pmDE 1.2 EpRAm 1991.37 EpDEm 1990.87
Num 12 Q RAmdeg 1.2 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.2 BTmag 8.045 E BTmag 0.017 VTmag 7.584
E VTmag 0.012 Prox 999 TYC T HIP 60727
CCDM AS RAdeg 186.69882306 DEdeg -5.59212500 EpRA 1990 1.66
EpDE 1990 1.52 E RAdeg 5.5 E DEdeg 6.2 Posflg P
Corr 0.1
SAO
SAO 138781 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.025 Vmag 7.8 SpType F2
Double code Source 27 CatNum 4587 DM BD-04 3281
DMcomp BDsup HD 108320 M HD 0
GC RA1950rad 3.24727212 DE1950rad -0.0927709 PmRA2000 0.0004
PmDE2000 -0.02
Hipparcos
Catalog H HIP 60727 Proxy H RAhms 12 26 47.72
DEdms -05 35 31.6 Vmag 7.55 VarFlag R Vmag G
RAdeg 186.699 DEdeg -5.59212 AstroRef * Plx 8.07
CCDM 12268-0536 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual D M HIP AS
Theta 186 Rho 0.098 HD 108320 BD BD-04 3281
CD CP Dm number -04 3281 VIred 0.49
SpType F2 R SpType Coord arcsec 2000 122647.72-053531.6
Hipparcos 2
HIP 60727 Sn 55 So 3 Nc 2
RArad 3.2585091548 DErad -0.0976009637 Plx 9.06 PmRA 13.19
PmDE -15.34 E RArad 0.69 E DErad 0.67 E Plx 0.85
E pmRA 0.81 E pmDE 0.66 Hpmag 7.6413 E Hpmag 0.0013
SHp 0.009 VA 0 BV 0.427 E BV 0.015
VI 0.49
CCDM
Ccdm 12268-0536 RComp Comp A Note1
Note2 Discov num DRAs -0.32 DDEs 27.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp F2 PmNote *
PmRA 1 PmDE -25 Dm number -04 3281 Cat1 BD
Name2 138781 Cat2 SAO HD 108320 M HD
ADS BDS A 8551 M ADS BDS N IDS IDS 12216S0502A
HIC 60727
 
 
12268-0536 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 122647.74-053531.5 Mag 8.79 Calc delta mag 0.68
Calc coord yes
CCDM
Ccdm 12268-0536 RComp Comp B Note1
Note2 Discov num A 78 DRAs DDEs
R dRAs Year 1959 Theta 114 Rho 0.3
Obs 14 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8551 M ADS BDS N IDS IDS 12216S0502B
HIC 60727