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Doubles in session


Current system
13203+1746
A 2166 AB
KR Com


Nearby doubles
20' : 13193+1759
LDS4345

23' : 13218+1746
STF1737

26' : 13220+1756
LDS4349AB

36' : 13216+1717
COU 56AB

36' : 13179+1737
LDS4339

38' : 13229+1747
YSC 217

46' : 13171+1739
GWP1962

63' : 13171+1829
SLW 847

64' : 13182+1650
KPP3891

64' : 13247+1755
BPM 603AB

64' : 13163+1715
STF1733

65' : 13197+1642
BRT1279

67' : 13169+1701
BU 800AB

72' : 13226+1643
CVR 139

75' : 13166+1838
UC 2511

81' : 13147+1750
LDS4331

85' : 13150+1824
GWP1955

85' : 13144+1732
CBL 415

86' : 13143+1743
GWP1948

91' : 13149+1700
GWP1952

93' : 13264+1818
LDS4362

94' : 13237+1905
KPP3894

99' : 13250+1858
GWP2014

100' : 13237+1619
GWP2006

103' : 13131+1801
S 648

104' : 13275+1743
GWP2022



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.

13203+1746 A 2166 AB (KR Com)

 
 
13h 20m 15.78s +17° 45' 57.7" P.A. 341.00 sep 0.1 mag 7.78,8.38 Sp F8V dist. 83.96 pc (273.88 l.y.)
 
 
Coord 2000 13203+1746 Discov num A  2166 Comp AB Coord arcsec 2000 13 20 15.78 +17 45 57.7
Date first 1910 Date last 2021 Obs 54
Pa first 7 Pa last 340.5 P.A. Now (θ) 353.3°
Sep first 0.2 Sep last 0.085 Sep. Now (ρ) 0.123"
Mag pri 7.78 Mag sec 8.38 delta mag (ΔM) 0.6 Spectral class F8V (yellow-white)
Pri motion ra -005 Sec motion ra
Pri motion dec -078 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13203+1746 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show KR Com 100517 13 20 16 +17 45 58 A 2166 AB 2021 54 341 0.1 7.78 8.38 0.60 Y <===
Show 100517 13 20 16 +17 45 58 A 2166 AC 2011 1 226 2.2 7.78
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name KR Com Constellation Coma Berenices SAO 100517 HIP 65069
Tycho2 1461-00806-1 HD 115955 GC 18041 ADS 8863
BD BD+18 2716 Distance 83.96 Distance ly 273.88
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier13203+1746 A 2166
coord_arcsec_2000132015.78+174557.7
Period (P)11.228y Periastron (T)2007.128y Semi-major axis (a)0.098a
Eccentricity (e)0.823 Inclination (i)67.8° Longitude of periastron (ω)314.9°
Node (Ω)197.9° Notesn ReferenceTok2020g
Equinox2000 Last observation2020 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 350.7 0.113
2001 355.2 0.129
2002 358.8 0.139
2003 2.2 0.142
2004 5.6 0.137
2005 9.5 0.121
2006 15.5 0.088
2007 69.6 0.010
2008 286.0 0.028
2009 329.0 0.057
2010 342.4 0.085
2011 349.5 0.109
2012 354.3 0.126
2013 358.1 0.137
2014 1.4 0.142
2015 4.8 0.139
2016 8.5 0.125
2017 13.8 0.097
2018 30.0 0.036
2019 264.0 0.025
2020 323.7 0.050
2021 340.2 0.079
2022 348.1 0.104
2023 353.3 0.123
2024 357.2 0.135
2025 0.7 0.141
2026 4.0 0.140
2027 7.6 0.130
2028 12.3 0.106
2029 22.6 0.056
2030 238.2 0.024


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


 
  


wds13203%2B1746c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 13203+1746 A 2166 AB (KR Com) : NOTES
 
 
discov_num notes refcode
A 2166 Elongations doubtful, quadrant indeterminate. B__1963b
Primary is eclipsing binary KR Com (period 0.40796 day). Zas2010
Omega corrected from 0.0 to 180.0 by Ruymaekers & Nys (1995) Ruy1995
Zasche et al. (2010) derived a combined solution orbit, based on Zas2010b
published astrometry plus minima timings of the close-contact
binary KR Com, which comprises the primary of the Aitken pair.
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 7.10 +/- 3.80, 2.75, and 1.10 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
B__1963b Ma j van den Bos, W.H. 1963AJ.....68..582V
B__1963b AJ 68, 582, 1963
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Ruy1995 orb - Ruymaekers, G. & Nys, O. 1995IAUDS.126....1R
Ruy1995 Inf. Circ. 126, 1, 1995
Zas2010 - Zasche, P. ...................
Zas2010 private communication, 2010
Zas2010b orb - Zasche, P. & Uhlar, R. 2010A&A...519A..78Z
Zas2010b A&A 519, A78, 2010
 
 
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
13203+1746 A 2166 AB 2020 53 326 0.1 7.78 8.38 F8V NO 132015.78+174557.7
13203+1746 A 2166 AB 2021 54 341 0.1 7.78 8.38 F8V NO 132015.78+174557.7

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

 
 
WDS 13203+1746 A 2166 AB (KR Com) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13203+1746 A 2166 AB (KR Com) : MEASURES
 
 
No records found.

 
 
WDS 13203+1746 (KR Com) : VIRTUAL EYEPIECE
 
 

13203+1746 A 2166A mag 7.78 Sp F8V 13203+1746 A 2166B sep 0.1 P.A. 341.40 mag 8.38 13203+1746 A 2166C sep 2.1 P.A. 224.40 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 13203+1746 (KR Com) : ALADIN DSS IMAGE @ 13h 20m 15.78s +17° 45' 57.7"
 
 
 
 
WDS 13203+1746 A 2166 AB (KR Com) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13203+1746 A 2166AB distance=0' 13193+1759 LDS4345 distance=20' 13218+1746 STF1737 distance=23' 13220+1756 LDS4349AB distance=26' 13220+1756 LDS4349AC distance=26' 13216+1717 COU 56AB distance=36' 13216+1717 GRV 866AB,C distance=36' 13179+1737 LDS4339 distance=36' 13229+1747 YSC 217 distance=38' 13221+1822 GTZ 14AC distance=45' 13171+1739 GWP1962 distance=46' 13171+1829 SLW 847 distance=63' 13182+1650 KPP3891 distance=64' 13247+1755 BPM 603AB distance=64' 13163+1715 STF1733 distance=64' 13197+1642 BRT1279 distance=65' 13169+1701 BU 800AB distance=67' 13169+1701 BU 800AC distance=67' 13169+1701 BU 800AD distance=67' 13226+1643 CVR 139 distance=72' 13166+1838 UC 2511 distance=75' 13147+1750 LDS4331 distance=81' 13150+1824 GWP1955 distance=85' 13144+1732 CBL 415 distance=85' 13143+1743 GWP1948 distance=86' 13149+1700 GWP1952 distance=91' 13264+1818 LDS4362 distance=93' 13237+1905 KPP3894 distance=94' 13250+1858 GWP2014 distance=99' 13237+1619 GWP2006 distance=100' 13131+1801 S 648 distance=103' 13275+1743 GWP2022 distance=104' 13224+1603 BPM 602 distance=108' 13135+1656 SLW 837 distance=109' 13154+1911 LDS4332 distance=111' 13221+1936 CVR 693 distance=113' 13124+1743 GWP1938 distance=113' 13123+1731 PAT 47 distance=115' 13153+1612 SLE 917 distance=119' 13136+1903 CVR1494 distance=123' 13162+1556 CBL 417 distance=124' 13217+1542 FOX 177 distance=126' 13119+1823 LDS 947 distance=127' 13225+1543 HEI 371 distance=128' 13133+1621 DOC 1 distance=131' 13202+1534 HDS1870Aa,Ab distance=133' 13202+1534 HJ 223AB distance=133' 13166+1948 HDS1862Aa,Ab distance=133' 13166+1948 BGH 46AB distance=133' 13282+1632 SKF 40 distance=137' 13281+1619 GWP2029 distance=143' 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 13203+1746 A 2166 AB 341 0.1
Show 13203+1746 A 2166 AC 226 2.2
Show 13193+1759 LDS4345 268 39.9 20
Show 13218+1746 STF1737 219 15.3 23
Show 13220+1756 LDS4349 AB 79 2.6 26
Show 13220+1756 LDS4349 AC 111 40.2 26
Show 13216+1717 COU 56 AB 23 0.2 36
Show 13216+1717 GRV 866 AB,C 296 64.2 36
Show 13179+1737 LDS4339 320 5.8 36
Show 13229+1747 YSC 217 274 0.4 38
Show 13221+1822 GTZ 14 AC 297 31.2 45
Show 13171+1739 GWP1962 64 203.5 46
Show 13171+1829 SLW 847 292 132.9 63
Show 13182+1650 KPP3891 355 1.5 64
Show 13247+1755 BPM 603 AB 234 23.7 64
Show 13163+1715 STF1733 128 4.9 64
Show 13197+1642 BRT1279 292 4.5 65
Show 13169+1701 BU 800 AB 104 7.7 67
Show 13169+1701 BU 800 AC 334 128.2 67
Show 13169+1701 BU 800 AD 74 35.2 67
Show 13226+1643 CVR 139 165 14.3 72
Show 13166+1838 UC 2511 58 44.9 75
Show 13147+1750 LDS4331 189 23.2 81
Show 13150+1824 GWP1955 327 486.7 85
Show 13144+1732 CBL 415 341 20.0 85
Show 13143+1743 GWP1948 326 50.0 86
Show 13149+1700 GWP1952 325 188.3 91
Show 13264+1818 LDS4362 149 16.6 93
Show 13237+1905 KPP3894 166 4.5 94
Show 13250+1858 GWP2014 238 330.4 99
Show 13237+1619 GWP2006 184 345.7 100
Show 13131+1801 S 648 69 88.2 103
Show 13275+1743 GWP2022 96 93.6 104
Show 13224+1603 BPM 602 43 72.2 108
Show 13135+1656 SLW 837 77 55.9 109
Show 13154+1911 LDS4332 7 137.0 111
Show 13221+1936 CVR 693 357 13.5 113
Show 13124+1743 GWP1938 202 169.7 113
Show 13123+1731 PAT 47 27 3.3 115
Show 13153+1612 SLE 917 299 28.3 119
Show 13136+1903 CVR1494 356 4.1 123
Show 13162+1556 CBL 417 273 19.3 124
Show 13217+1542 FOX 177 86 17.4 126
Show 13119+1823 LDS 947 117 453.7 127
Show 13225+1543 HEI 371 359 1.7 128
Show 13133+1621 DOC 1 261 0.1 131
Show 13202+1534 HDS1870 Aa,Ab 270 0.4 133
Show 13202+1534 HJ 223 AB 6 36.0 133
Show 13166+1948 HDS1862 Aa,Ab 262 0.4 133
Show 13166+1948 BGH 46 AB 58 202.9 133
Show 13282+1632 SKF 40 115 1.4 137

 
 
WDS 13203+1746 : COMPONENTS
 
 
  A B
B pa=341.4°
sep=0.08"
 
C pa=224.4°
sep=2.12"
pa=222.4°
sep=2.16"
 
 
13203+1746 A
 
 
Var name KR Com Coord arcsec 2000 132015.78+174557.7 Mag 7.78 Spectral class F8V (yellow-white)
PmRA -5.00 PmDE -78.0 SAO 100517 HIP 65069
Tycho2 1461-00806-1 HD 115955 GC 18041 BD BD+18 2716
Tycho2
Tycho2 1461-00806-1 Pflag RAmdeg 200.06574264 DEmdeg 17.76583667
PmRA -7.4 PmDE -80.0 E RAmdeg 4 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.41 EpDEm 1990.69
Num 13 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.8
Q pmDE 1.5 BTmag 7.841 E BTmag 0.015 VTmag 7.229
E VTmag 0.010 Prox 999 TYC T HIP 65069
CCDM AB RAdeg 200.06576056 DEdeg 17.76603444 EpRA 1990 1.70
EpDE 1990 1.09 E RAdeg 3.8 E DEdeg 4.7 Posflg P
Corr 0.0
SAO
SAO 100517 DelFlag RA1950 PmRA1950 -0.0015
DE1950 PmDE1950 -0.082 Vmag 7 SpType F5
Double code Source 70 CatNum 18041 DM BD+18 2716
DMcomp BDsup HD 115955 M HD 0
GC 18041 RA1950rad 3.48115343 DE1950rad 0.31466605 PmRA2000 -0.0015
PmDE2000 -0.077
Hipparcos
Catalog H HIP 65069 Proxy H RAhms 13 20 15.78
DEdms +17 45 57.7 Vmag 7.17 VarFlag 1 R Vmag H
RAdeg 200.066 DEdeg 17.766 AstroRef * Plx 13.07
CCDM 13203+1746 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 357 Rho 0.136 HD 115955 BD BD+18 2716
CD CP Dm number +18 2716 VIred 0.64
SpType F5 R SpType Coord arcsec 2000 132015.78+174557.7
Hipparcos 2
HIP 65069 Sn 55 So 3 Nc 2
RArad 3.4918062388 DErad 0.3100757283 Plx 11.91 PmRA -5.77
PmDE -83 E RArad 0.58 E DErad 0.38 E Plx 0.71
E pmRA 0.56 E pmDE 0.4 Hpmag 7.2897 E Hpmag 0.0038
SHp 0.031 VA 1 BV 0.569 E BV 0.009
VI 0.64
CCDM
Ccdm 13203+1746 RComp Comp A Note1
Note2 Discov num DRAs -2.15 DDEs -1.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.8 Sp F5 PmNote *
PmRA 7 PmDE -62 Dm number +18 2716 Cat1 BD
Name2 +18 1241 Cat2 AGK2/3 HD 115955 M HD
ADS BDS A 8863 M ADS BDS N IDS IDS 13154N1818A
HIC 65069
 
 
13203+1746 B
 
 
Coord arcsec 2000 132015.78+174557.8 Mag 8.38 Calc delta mag 0.6 Calc coord yes
CCDM
Ccdm 13203+1746 RComp Comp B Note1 *
Note2 Discov num A 2166 DRAs DDEs
R dRAs Year 1960 Theta 213 Rho 0.1
Obs 11 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8863 M ADS BDS N N IDS IDS 13154N1818B
HIC 65069
 
 
13203+1746 C
 
 
Coord arcsec 2000 132015.68+174556.2 Calc delta mag 7.78 Calc coord yes