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Doubles in session


Current system
15576+2653
AGC 7 AB
Eps CrB


Nearby doubles
14' : 15572+2640
TDS9703

31' : 15554+2702
KPP3299

48' : 16011+2649
KPP3976

53' : 16006+2726
TDS9725

54' : 16003+2612
J 3322

56' : 15557+2603
LDS4604

63' : 15595+2555
JEF 2

64' : 16011+2610
H 5 75

64' : 15593+2752
TDS9712

69' : 16025+2633
COU 618AB

70' : 16026+2637
HDS2262

79' : 15540+2754
COU 802AB

88' : 16011+2808
AG 349

88' : 16033+2611
CVR 810

88' : 16038+2723
TDS9744

90' : 15551+2529
BRT3309AB

100' : 15508+2615
TDS9657

106' : 15560+2510
TDS9695

108' : 15523+2814
TDS9668

110' : 16018+2519
FMR 122AB

118' : 16063+2633
TDS9754

122' : 15508+2814
TDS9656AB

122' : 15499+2547
HLM 6

126' : 15562+2857
LDS4607

129' : 16019+2458
COU 411

131' : 16040+2515
TRN 1



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

15576+2653 AGC 7 AB (Eps CrB)

 
 
15h 57m 35.30s +26° 52' 40.9" P.A. 10.00 sep 2.0 mag 4.13,12.60 Sp K2IIIab dist. 67.89 pc (221.46 l.y.)
 
 
Coord 2000 15576+2653 Discov num AGC   7 Comp AB Coord arcsec 2000 15 57 35.30 +26 52 40.9
Date first 1876 Date last 2002 Obs 17
Pa first 351 Pa last 9.8 P.A. Now (θ) 9.8°
Sep first 2.1 Sep last 1.96 Sep. Now (ρ) 1.96"
Mag pri 4.13 Mag sec 12.60 delta mag (ΔM) 8.47 Spectral class K2IIIab (yellow-orange)
Pri motion ra -078 Sec motion ra
Pri motion dec -061 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
15576+2653 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Eps CrB 84098 15 57 35 +26 52 41 AGC 7 AB 2002 17 10 2.0 4.13 12.60 8.47 <===
Show 84098 15 57 35 +26 52 41 AGC 7 AC 2015 7 172 96.0 4.13 12.61 8.48
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Eps CrB Constellation Corona Borealis SAO 84098 HIP 78159
Tycho2 2037-01826-1 Gaia DR2 1220404653534258816 HD 143107 HR 5947
GC 21440 ADS 9859 BD BD+27 2558 Bayer Epsilon Coronae Borealis
Bayer name Eps CrB Flamsteed 13 Coronae Borealis Flamsteed name 13 CrB FK5 593
Distance 67.89 Distance ly 221.46 Bayer greek ε CrB
 
 
WDS 15576+2653 AGC 7 AB (Eps CrB) : NOTES
 
 
discov_num notes refcode
AGC 7 eps CrB = 13 CrB
NPOI Limb-darkened diameter 2.997 +/- 0.128 mas, Sp = K2III, NOI2018
R = 21.87 +/- 0.99 \rsun, Teff = 4408 +/-109 K,
L = 162.9 +/- 9.4 \lsun, M = 1.37 +/- 0.24 \msun,
Age = 3.24 +/- 1.81 Gyr.
 
 
REFERENCES
 
 
refcode metd author reference
NOI2018 not j Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter, 2018AJ....155...30B
NOI2018 D.J., Tycner, C. & van Belle, G.T.
NOI2018 AJ 155, 30, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 AGC Clark, A.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15576+2653 AGC 7 AB 1965 16 10 2.1 4.20 12.60 K2IIIab N 155735.30+265240.9
15576+2653 AGC 7 AB 2002 17 10 2.0 4.20 12.60 K2IIIab N D 155735.30+265240.9

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

 
 
WDS 15576+2653 AGC 7 AB (Eps CrB) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15576+2653 AGC 7 AB (Eps CrB) : MEASURES
 
 
No records found.

 
 
WDS 15576+2653 (Eps CrB) : VIRTUAL EYEPIECE
 
 

15576+2653 AGC 7A mag 4.13 Sp K2IIIab 15576+2653 AGC 7B sep 1.9 P.A. 8.80 mag 12.6 15576+2653 AGC 7C sep 95.9 P.A. 173.20 mag 12.61 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 15576+2653 (Eps CrB) : ALADIN DSS IMAGE @ 15h 57m 35.30s +26° 52' 40.9"
 
 
 
 
WDS 15576+2653 AGC 7 AB (Eps CrB) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15576+2653 AGC 7AB distance=0' 15572+2640 TDS9703 distance=14' 15554+2702 KPP3299 distance=31' 16011+2649 KPP3976 distance=48' 16006+2726 TDS9725 distance=53' 16003+2612 J 3322 distance=54' 15557+2603 LDS4604 distance=56' 15595+2555 JEF 2 distance=63' 16011+2610 H 5 75 distance=64' 15593+2752 TDS9712 distance=64' 16025+2633 COU 618AB distance=69' 16025+2633 GII 227Aa,Ab distance=69' 16026+2637 HDS2262 distance=70' 15540+2754 COU 802AB distance=79' 15540+2754 GII 225Aa,Ab distance=79' 16011+2808 AG 349 distance=88' 16033+2611 CVR 810 distance=88' 16038+2723 TDS9744 distance=88' 15551+2529 BRT3309AB distance=90' 15508+2615 TDS9657 distance=100' 15560+2510 TDS9695 distance=106' 15523+2814 TDS9668 distance=108' 16018+2519 FMR 122AB distance=110' 16018+2519 WIS 300BC distance=111' 16063+2633 TDS9754 distance=118' 15508+2814 TDS9656AB distance=122' 15499+2547 HLM 6 distance=122' 15562+2857 LDS4607 distance=126' 16019+2458 COU 411 distance=129' 16040+2515 TRN 1 distance=131' 15485+2600 COU 616 distance=134' 15498+2817 TDS9648 distance=134' 15513+2509 STF1981 distance=135' 15495+2528 WSI 111Aa,Ab distance=138' 15495+2528 STF1977AB distance=138' 15495+2528 WSI 111Aa,C distance=138' 16048+2514 HDS2270 distance=139' 16032+2851 STF2004 distance=140' 15558+2912 DOO 61AB distance=141' 15553+2435 AZC 95 distance=142' 15598+2431 GRV1215 distance=145' 15495+2514 TDS9646 distance=147' 15485+2817 TDS9637 distance=147' 15498+2839 UC 213 distance=149' 15458+2637 COU 615 distance=159' 15488+2503 DOO 60 distance=160' 16096+2658 HDS2282 distance=161' 15554+2932 HO 399 distance=163' 15474+2828 TDS9623 distance=166' 16067+2849 TDS9759 distance=168' 15514+2921 COU 617 distance=170' 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 15576+2653 AGC 7 AB 10 2.0
Show 15576+2653 AGC 7 AC 172 96.0
Show 15572+2640 TDS9703 296 0.7 14
Show 15554+2702 KPP3299 286 1.4 31
Show 16011+2649 KPP3976 320 1.2 48
Show 16006+2726 TDS9725 4 0.6 53
Show 16003+2612 J 3322 126 2.7 54
Show 15557+2603 LDS4604 64 30.1 56
Show 15595+2555 JEF 2 140 0.5 63
Show 16011+2610 H 5 75 113 57.1 64
Show 15593+2752 TDS9712 217 0.6 64
Show 16025+2633 COU 618 AB 178 0.6 69
Show 16025+2633 GII 227 Aa,Ab 16 0.2 69
Show 16026+2637 HDS2262 265 0.4 70
Show 15540+2754 COU 802 AB 127 3.0 79
Show 15540+2754 GII 225 Aa,Ab 122 0.1 79
Show 16011+2808 AG 349 227 11.7 88
Show 16033+2611 CVR 810 6 15.7 88
Show 16038+2723 TDS9744 38 0.5 88
Show 15551+2529 BRT3309 AB 286 3.3 90
Show 15508+2615 TDS9657 225 0.8 100
Show 15560+2510 TDS9695 100 0.4 106
Show 15523+2814 TDS9668 210 0.7 108
Show 16018+2519 FMR 122 AB 193 8.3 110
Show 16018+2519 WIS 300 BC 81 808.1 111
Show 16063+2633 TDS9754 261 2.5 118
Show 15508+2814 TDS9656 AB 45 0.7 122
Show 15499+2547 HLM 6 179 24.0 122
Show 15562+2857 LDS4607 265 23.4 126
Show 16019+2458 COU 411 277 1.4 129
Show 16040+2515 TRN 1 247 0.4 131
Show 15485+2600 COU 616 163 0.8 134
Show 15498+2817 TDS9648 159 0.7 134
Show 15513+2509 STF1981 4 12.1 135
Show 15495+2528 WSI 111 Aa,Ab 307 0.2 138
Show 15495+2528 STF1977 AB 356 13.9 138
Show 15495+2528 WSI 111 Aa,C 114 0.5 138
Show 16048+2514 HDS2270 8 27.5 139
Show 16032+2851 STF2004 278 1.8 140
Show 15558+2912 DOO 61 AB 251 50.1 141
Show 15553+2435 AZC 95 233 47.7 142
Show 15598+2431 GRV1215 328 13.1 145
Show 15495+2514 TDS9646 43 1.7 147
Show 15485+2817 TDS9637 99 1.0 147
Show 15498+2839 UC 213 59 9.7 149
Show 15458+2637 COU 615 127 1.0 159
Show 15488+2503 DOO 60 23 28.0 160
Show 16096+2658 HDS2282 53 0.4 161
Show 15554+2932 HO 399 116 3.6 163
Show 15474+2828 TDS9623 310 2.0 166
Show 16067+2849 TDS9759 67 0.5 168

 
 
WDS 15576+2653 : COMPONENTS
 
 
  A B
B pa=8.8°
sep=1.95"
 
C pa=173.2°
sep=95.87"
pa=173.5°
sep=97.75"
 
 
15576+2653 A
 
 
Name Eps CrB Coord arcsec 2000 155735.30+265240.9 Mag 4.13 Spectral class K2IIIab (yellow-orange)
PmRA -78.00 PmDE -61.0 SAO 84098 HIP 78159
Tycho2 2037-01826-1 HD 143107 HR 5947 GC 21440
BD BD+27 2558 Bayer Epsilon Coronae Borealis Bayer name Eps CrB Flamsteed 13 Coronae Borealis
Flamsteed name 13 CrB FK5 593
Tycho2
Tycho2 2037-01826-1 Pflag RAmdeg 239.39687489 DEmdeg 26.87787278
PmRA -78.9 PmDE -63.0 E RAmdeg 3 E DEmdeg 3
E pmRA 0.6 E pmDE 0.5 EpRAm 1991.11 EpDEm 1991.16
Num 23 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 0.8
Q pmDE 1.8 BTmag 5.732 E BTmag 0.014 VTmag 4.274
E VTmag 0.009 Prox 999 TYC T HIP 78159
CCDM RAdeg 239.39708167 DEdeg 26.87802000 EpRA 1990 1.59
EpDE 1990 1.61 E RAdeg 3.2 E DEdeg 3.2 Posflg
Corr -0.2
SAO
SAO 84098 DelFlag RA1950 PmRA1950 -0.0058
DE1950 PmDE1950 -0.063 Vmag 4.2 SpType K0
Double code Source 74 CatNum 593 DM BD+27 2558
DMcomp BDsup HD 143107 M HD 0
GC 21440 RA1950rad 4.16922258 DE1950rad 0.47161429 PmRA2000 -0.0056
PmDE2000 -0.061
Hipparcos
Catalog H HIP 78159 Proxy RAhms 15 57 35.30
DEdms +26 52 40.9 Vmag 4.14 VarFlag 1 R Vmag H
RAdeg 239.397 DEdeg 26.878 AstroRef Plx 14.2
CCDM 15576+2652 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 143107 BD BD+27 2558
CD CP Dm number +27 2558 VIred 1.17
SpType K3III R SpType Coord arcsec 2000 155735.30+265240.9
Hipparcos 2
HIP 78159 Sn 5 So 0 Nc 1
RArad 4.1782674598 DErad 0.4691100516 Plx 14.73 PmRA -77.07
PmDE -60.61 E RArad 0.12 E DErad 0.13 E Plx 0.21
E pmRA 0.14 E pmDE 0.18 Hpmag 4.2992 E Hpmag 0.0005
SHp 0.006 VA 0 BV 1.231 E BV 0.001
VI 1.17
 
 
15576+2653 B
 
 
Coord arcsec 2000 155735.32+265242.8 Mag 12.6 Calc delta mag 8.47 Calc coord yes
 
 
15576+2653 C
 
 
Coord arcsec 2000 155736.15+265105.7 Mag 12.61 PmRA -38.00 PmDE -42.0
Calc delta mag 8.48 Calc coord yes