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Doubles in session


Current system
15329+3122
COU 610
The CrB


Nearby doubles
9' : 15331+3113
COU 611

29' : 15314+3102
TDS9535

44' : 15344+3201
HU 746

45' : 15360+3143
COU 799

58' : 15288+3101
A 1369AB

59' : 15355+3033
TDS9555

74' : 15274+3102
KZA 90

80' : 15301+3232
UC 3016

82' : 15268+3102
TDS9517

83' : 15392+3140
TDS9577

83' : 15378+3026
BRT 252

91' : 15381+3225
CFN 12

91' : 15258+3117
UC 3001

94' : 15295+2959
KPP 834

96' : 15393+3033
GRV 909

97' : 15369+2959
DEA 52

98' : 15406+3128
COU 613

99' : 15275+3012
CVR1631

99' : 15379+3006
STF1963AB

101' : 15404+3151
TDS 782

103' : 15259+3031
KZA 89

104' : 15356+2944
TDS9557

106' : 15347+2938
TDS9550

106' : 15335+2936
TDS9548

110' : 15246+3147
LEP 145

110' : 15415+3129
TDS9590



Selections
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

15329+3122 COU 610 (The CrB)

 
 
15h 32m 55.78s +31° 21' 32.9" P.A. 198.00 sep 0.8 mag 4.27,6.29 Sp B6Vnne dist. 115.07 pc (375.36 l.y.)
 
 
Coord 2000 15329+3122 Discov num COU 610 Comp Coord arcsec 2000 15 32 55.78 +31 21 32.9
Date first 1971 Date last 2016 Obs 103
Pa first 203 Pa last 197.8 P.A. Now (θ) 197.8°
Sep first 0.5 Sep last 0.844 Sep. Now (ρ) 0.844"
Mag pri 4.27 Mag sec 6.29 delta mag (ΔM) 2.02 Spectral class B6Vnne (blue-white)
Pri motion ra -020 Sec motion ra -020
Pri motion dec -006 Sec motion dec -006
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name The CrB Var name 7134/5 Constellation Corona Borealis SAO 64769
HIP 76127 Tycho2 2564-01629-1 Gaia DR2 1274286186493145728 HD 138749
HR 5778 GC 20908 BD BD+31 2750 Bayer Theta Coronae Borealis
Bayer name The CrB Flamsteed 4 Coronae Borealis Flamsteed name 4 CrB FK5 576
Distance 115.07 Distance ly 375.36 Bayer greek θ CrB
 
 
ORBITAL ELEMENTS
 
 
Period (P)361.1y± 76.8 Periastron (T)1943y± 0.7 Semi-major axis (a)0.826a± 0.118
Eccentricity (e)0.78± 0.054 Inclination (i)100.5°± 3.2 Longitude of periastron (ω)66.5°± 8.8
Node (Ω)26.9°± 2.5 Notesn ReferenceKsr2021
Equinox Last observation2016 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 199.9 0.790
2001 199.8 0.794
2002 199.6 0.797
2003 199.5 0.801
2004 199.4 0.804
2005 199.3 0.807
2006 199.2 0.810
2007 199.0 0.813
2008 198.9 0.816
2009 198.8 0.818
2010 198.7 0.821
2011 198.6 0.823
2012 198.5 0.825
2013 198.3 0.828
2014 198.2 0.830
2015 198.1 0.832
2016 198.0 0.833
2017 197.9 0.835
2018 197.8 0.837
2019 197.7 0.838
2020 197.6 0.839
2021 197.5 0.841
2022 197.3 0.842
2023 197.2 0.843
2024 197.1 0.844
2025 197.0 0.845
2026 196.9 0.846
2027 196.8 0.846
2028 196.7 0.847
2029 196.6 0.848
2030 196.5 0.848


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


 
  


wds15329%2B3122a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15329+3122 COU 610 (The CrB) : NOTES
 
 
discov_num notes refcode
COU 610 the CrB = 4 CrB. Variable.
 
 
REFERENCES
 
 
refcode metd author reference
KSR2021 orb - Kisser, A.E. & Krechet, V.G. 2021AstL...47..754K
KSR2021 Ast. Lett. 47, 754, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15329+3122 COU 610 2008 94 199 0.8 4.27 6.29 B6Vnne N D 153255.78+312132.9
15329+3122 COU 610 2010 96 200 0.8 4.27 6.29 B6Vnne N D 153255.78+312132.9
15329+3122 COU 610 2012 97 202 0.8 4.27 6.29 B6Vnne N 153255.78+312132.9
15329+3122 COU 610 2015 98 205 0.8 4.27 6.29 B6Vnne N 153255.78+312132.9
15329+3122 COU 610 2016 99 199 0.8 4.27 6.29 B6Vnne N 153255.78+312132.9

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

 
 
WDS 15329+3122 COU 610 (The CrB) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 20/06/01 Adam Long difficut separated 200 very interesting Seen quickly at this mag in near perfect seeing. Primary cold white, sec pale blue dot on first d r
Show 15/05/10 rbotero very difficult separated 210 interesting Secondary sitting on primary's diffraction ring. Bluish tint

 
 
WDS 15329+3122 COU 610 (The CrB) : MEASURES
 
 
No records found.

 
 
WDS 15329+3122 (The CrB) : VIRTUAL EYEPIECE
 
 

15329+3122 COU 610A mag 4.27 Sp B6Vnne 15329+3122 COU 610B sep 0.8 P.A. 195.30 mag 6.29 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 15329+3122 (The CrB) : ALADIN DSS IMAGE @ 15h 32m 55.78s +31° 21' 32.9"
 
 
 
 
WDS 15329+3122 COU 610 (The CrB) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15329+3122 COU 610 distance=0' 15331+3113 COU 611 distance=9' 15314+3102 TDS9535 distance=29' 15344+3201 HU 746 distance=44' 15360+3143 COU 799 distance=45' 15288+3101 A 1369AB distance=58' 15288+3101 A 1369AC distance=58' 15355+3033 TDS9555 distance=59' 15274+3102 KZA 90 distance=74' 15301+3232 UC 3016 distance=80' 15268+3102 TDS9517 distance=82' 15392+3140 TDS9577 distance=83' 15378+3026 BRT 252 distance=83' 15381+3225 CFN 12 distance=91' 15258+3117 UC 3001 distance=91' 15295+2959 KPP 834 distance=94' 15393+3033 GRV 909 distance=96' 15369+2959 DEA 52 distance=97' 15406+3128 COU 613 distance=98' 15275+3012 CVR1631 distance=99' 15379+3006 STF1963AB distance=99' 15379+3006 STF1963AC distance=99' 15404+3151 TDS 782 distance=101' 15259+3031 KZA 89 distance=103' 15356+2944 TDS9557 distance=104' 15347+2938 TDS9550 distance=106' 15335+2936 TDS9548 distance=106' 15246+3147 LEP 145 distance=110' 15415+3129 TDS9590 distance=110' 15266+3008 WIS 286 distance=111' 15403+3019 BRT 253 distance=114' 15255+3020 KZA 88 distance=115' 15419+3128 PRY 1 distance=115' 15283+2943 KZA 91 distance=117' 15381+2947 TDS9571 distance=117' 15269+2955 TDS9520 distance=117' 15418+3054 HDS2217 distance=118' 15340+3320 COU 797 distance=119' 15239+3053 LDS4548 distance=121' 15415+3225 LDS4584 distance=126' 15381+2929 RAO 506 distance=131' 15308+2913 CVR 789BC distance=131' 15228+3049 KZA 85 distance=133' 15283+2920 CVR 166 distance=136' 15362+2912 TDS9558 distance=137' 15238+3007 KZA 86 distance=139' 15224+3210 COU 795 distance=140' 15232+3017 STF1937AB distance=141' 15232+3017 KIR 4AB,E distance=141' 15232+3017 STF1937AB,C distance=141' 15232+3017 STF1937AB,D distance=141' 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 15329+3122 COU 610 198 0.8
Show 15331+3113 COU 611 96 0.7 9
Show 15314+3102 TDS9535 5 0.5 29
Show 15344+3201 HU 746 216 2.0 44
Show 15360+3143 COU 799 265 1.0 45
Show 15288+3101 A 1369 AB 316 4.2 58
Show 15288+3101 A 1369 AC 259 73.4 58
Show 15355+3033 TDS9555 196 1.4 59
Show 15274+3102 KZA 90 298 19.9 74
Show 15301+3232 UC 3016 244 22.6 80
Show 15268+3102 TDS9517 105 0.6 82
Show 15392+3140 TDS9577 112 0.4 83
Show 15378+3026 BRT 252 216 4.6 83
Show 15381+3225 CFN 12 149 1.1 91
Show 15258+3117 UC 3001 48 5.8 91
Show 15295+2959 KPP 834 164 7.1 94
Show 15393+3033 GRV 909 262 27.1 96
Show 15369+2959 DEA 52 84 36.1 97
Show 15406+3128 COU 613 25 0.2 98
Show 15275+3012 CVR1631 190 3.8 99
Show 15379+3006 STF1963 AB 298 5.2 99
Show 15379+3006 STF1963 AC 116 32.4 99
Show 15404+3151 TDS 782 61 1.3 101
Show 15259+3031 KZA 89 244 41.4 103
Show 15356+2944 TDS9557 346 0.4 104
Show 15347+2938 TDS9550 103 0.8 106
Show 15335+2936 TDS9548 186 0.6 106
Show 15246+3147 LEP 145 251 4.9 110
Show 15415+3129 TDS9590 108 2.7 110
Show 15266+3008 WIS 286 240 876.7 111
Show 15403+3019 BRT 253 268 5.4 114
Show 15255+3020 KZA 88 115 50.4 115
Show 15419+3128 PRY 1 112 5.6 115
Show 15283+2943 KZA 91 215 30.9 117
Show 15381+2947 TDS9571 35 0.5 117
Show 15269+2955 TDS9520 308 0.6 117
Show 15418+3054 HDS2217 178 0.1 118
Show 15340+3320 COU 797 202 1.8 119
Show 15239+3053 LDS4548 111 79.2 121
Show 15415+3225 LDS4584 356 45.8 126
Show 15381+2929 RAO 506 -1 0.2 131
Show 15308+2913 CVR 789 BC 170 8.2 131
Show 15228+3049 KZA 85 11 25.9 133
Show 15283+2920 CVR 166 57 13.0 136
Show 15362+2912 TDS9558 212 0.4 137
Show 15238+3007 KZA 86 21 22.0 139
Show 15224+3210 COU 795 144 0.7 140
Show 15232+3017 STF1937 AB 287 0.4 141
Show 15232+3017 KIR 4 AB,E 137 193.6 141
Show 15232+3017 STF1937 AB,C 358 75.1 141
Show 15232+3017 STF1937 AB,D 40 217.9 141

 
 
WDS 15329+3122 : COMPONENTS
 
 
  A
B pa=195.3°
sep=0.83"
 
 
15329+3122 A
 
 
Componente originario normalizzato AB Name The CrB Coord arcsec 2000 153255.78+312132.9 Mag 4.27
Spectral class B6Vnne (blue-white) PmRA -20.00 PmDE -6.0 SAO 64769
HIP 76127 Tycho2 2564-01629-1 HD 138749 HR 5778
GC 20908 BD BD+31 2750 Bayer Theta Coronae Borealis Bayer name The
Flamsteed 4 Coronae Borealis Flamsteed name 4 CrB FK5 576
Tycho2
Tycho2 2564-01629-1 Pflag RAmdeg 233.23242458 DEmdeg 31.35912981
PmRA -19.6 PmDE -6.2 E RAmdeg 3 E DEmdeg 3
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.31 EpDEm 1991.47
Num 22 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.4 BTmag 4.003 E BTmag 0.014 VTmag 4.143
E VTmag 0.009 Prox 999 TYC T HIP 76127
CCDM AB RAdeg 233.23247778 DEdeg 31.35914417 EpRA 1990 1.64
EpDE 1990 1.76 E RAdeg 3.2 E DEdeg 3.1 Posflg P
Corr -0.3
SAO
SAO 64769 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 -0.015 Vmag 4.2 SpType B5
Double code Source 74 CatNum 576 DM BD+31 2750
DMcomp BDsup HD 138749 M HD 0
GC 20908 RA1950rad 4.06186809 DE1950rad 0.55024642 PmRA2000 -0.0015
PmDE2000 -0.012
Hipparcos
Catalog H HIP 76127 Proxy H RAhms 15 32 55.80
DEdms +31 21 33.0 Vmag 4.14 VarFlag R Vmag G
RAdeg 233.232 DEdeg 31.3592 AstroRef A Plx 10.49
CCDM 15329+3122 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 201 Rho 0.752 HD 138749 BD BD+31 2750
CD CP Dm number +31 2750 VIred -0.12
SpType B6Vnn R SpType Coord arcsec 2000 153255.80+312133.0
Hipparcos 2
HIP 76127 Sn 15 So 3 Nc 2
RArad 4.0706747501 DErad 0.547320507 Plx 8.69 PmRA -20.15
PmDE -9.39 E RArad 0.23 E DErad 0.31 E Plx 0.46
E pmRA 0.28 E pmDE 0.39 Hpmag 4.112 E Hpmag 0.0005
SHp 0.005 VA 0 BV -0.127 E BV 0.015
VI -0.12
CCDM
Ccdm 15329+3122 RComp Comp A Note1
Note2 Discov num DRAs 1.77 DDEs -27.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 4.1 Sp B5 PmNote *
PmRA -22 PmDE -15 Dm number +31 2750 Cat1 BD
Name2 +31 1352 Cat2 AGK2/3 HD 138749 M HD
ADS BDS M ADS BDS N IDS IDS 15289N3142A
HIC 76127
 
 
15329+3122 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 153255.76+312132.1 Mag 6.29 PmRA -20.00
PmDE -6.0 Calc delta mag 2.02 Calc coord yes
CCDM
Ccdm 15329+3122 RComp Comp B Note1
Note2 Discov num COU 610 DRAs DDEs
R dRAs Year 1971 Theta 203 Rho 0.5
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 15289N3142B
HIC 76127