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Doubles in session


Current system
12351+1823
STF 1657 AB
24 Com


Nearby doubles
31' : 12355+1752
CBL 387

41' : 12371+1753
LSC 51

51' : 12350+1732
FAL 39

61' : 12340+1921
LDS1324

61' : 12394+1823
UC 2380

61' : 12393+1836
CVR1457

64' : 12346+1926
UC 2363

64' : 12396+1817
CBL 389

64' : 12351+1719
TDS 670

68' : 12358+1716
CVR1453

73' : 12398+1754
BPM 595

76' : 12324+1717
BPM 592

82' : 12307+1913
GWP1820

83' : 12394+1918
TDS8472

88' : 12319+1710
LDS1315

89' : 12387+1710
LDS1329

89' : 12409+1855
GWP1845

90' : 12347+1951
CVR 127

93' : 12355+1955
GWP1832

94' : 12353+1650
LDS1326

96' : 12348+1647
GWP1830

98' : 12302+1713
GRV 856

103' : 12422+1840
GWP1850

104' : 12322+1648
A 2060

106' : 12323+2000
HU 571

107' : 12400+1702
BRT2415



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

12351+1823 STF 1657 AB (24 Com)

 
 
12h 35m 07.76s +18° 22' 37.4" P.A. 272.00 sep 20.2 mag 5.11,6.33 Sp K2III dist. 51.84 pc (169.1 l.y.)
 
 
Coord 2000 12351+1823 Discov num STF1657 Comp AB Coord arcsec 2000 12 35 07.76 +18 22 37.4
Date first 1781 Date last 2018 Obs 151
Pa first 274 Pa last 271.8 P.A. Now (θ) 271.8°
Sep first 18.4 Sep last 20.2 Sep. Now (ρ) 20.2"
Mag pri 5.11 Mag sec 6.33 delta mag (ΔM) 1.22 Spectral class K2III (yellow-orange)
Pri motion ra -004 Sec motion ra -001
Pri motion dec +023 Sec motion dec +025
Notes N (See Notes)
rPM=0.144 (< 0.3, Physical double)
This double is physical.
 
 
12351+1823 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 100160 12 35 08 +18 22 37 CIA 32 Aa,Ab 2021 5 147 0.0 6.60 6.80 0.20
Show 24 Com 100160 12 35 08 +18 22 37 STF 1657 AB 2018 151 272 20.2 5.11 6.33 1.22 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 24 Com Var name NSV5748 Com Constellation Coma Berenices SAO 100160
HIP 61415 Tycho2 1446-02469-1 HD 109510 HR 4791
GC 17146 ADS 8600 BD BD+19 2584 Flamsteed 24 Comae Berenices
Flamsteed name 24 Com FK5 473 Distance 51.84 Distance ly 169.1
 
 
WDS 12351+1823 STF 1657 AB (24 Com) : NOTES
 
 
discov_num notes refcode
STF1657 24 Com. B is a spectroscopic binary, spectrum A9Vm.
Measure of 1927.49 made by triangulation of multiple measures.
H 4 27. MEv2010
CIA 32 Ma,Mb = 1.838 +/- 0.218, 1.541 +/- 0.184 \msun.
Ra,Rb = 2.28 +/- 0.06, 1.70 +/- 0.07 \rsun.
Teff_a,Teff_b = 7630 +/- 120, 7180 +/- 140 K.
La,Lb = 15.6 +/- 1.3, 7.2 +/- 0.9 \lsun. distance = 110.1 +/- 6.1 pc. CIA2022e
 
 
REFERENCES
 
 
refcode metd author reference
CIA2022e Kc+ j Lester, K.V., Schaefer, G.H., Fekel, F.C., Gies, D.R., Henry, T.J., Jao, W.-C., 2022AJ...164...228L
CIA2022e +orb Paredes, L.A., Hubbard-James, H.-S., Farrington, C.D., Gordon, K.D., Chojnowski,
CIA2022e S.D., Monnier, J.D., Kraus, S., Le Bouquin, J.-B., Anugu, N., ten Brummelaar, T.,
CIA2022e Davies, C.L., Gardner, T., Labdon, A., Lanthermann, C. & Setterholm, B.R.
CIA2022e AJ 164, 228, 2022
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12351+1823 STF1657 AB 2018 151 272 20.2 5.11 6.33 K2III N 123507.76+182237.4

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

 
 
WDS 12351+1823 STF 1657 AB (24 Com) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/04/14 Daedalus1 mean difficulty separated 271 do not miss it! Very beautiful pair of pale yellow and blue stars. Primary is the yellow star, and easily brighter.

 
 
WDS 12351+1823 STF 1657 AB (24 Com) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/04/14 Daedalus1 mean difficulty 20.13 0.07 271.00 0.00 1.26 12 Seeing: Pickering 3, very poor.
 
 
WDS 12351+1823 (24 Com) : VIRTUAL EYEPIECE
 
 

12351+1823 STF1657A mag 5.11 Sp K2III 12351+1823 CIA 32Ab mag 6.8 12351+1823 STF1657B sep 19.2 P.A. 271.90 mag 6.33 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 12351+1823 (24 Com) : ALADIN DSS IMAGE @ 12h 35m 07.76s +18° 22' 37.4"
 
 
 
 
WDS 12351+1823 STF 1657 AB (24 Com) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12351+1823 STF1657AB distance=0' 12355+1752 CBL 387 distance=31' 12371+1753 LSC 51 distance=41' 12350+1732 FAL 39 distance=51' 12340+1921 LDS1324 distance=61' 12394+1823 UC 2380 distance=61' 12393+1836 CVR1457 distance=61' 12346+1926 UC 2363 distance=64' 12396+1817 CBL 389 distance=64' 12351+1719 TDS 670 distance=64' 12358+1716 CVR1453 distance=68' 12398+1754 BPM 595 distance=73' 12324+1717 BPM 592 distance=76' 12307+1913 GWP1820 distance=82' 12394+1918 TDS8472 distance=83' 12319+1710 LDS1315 distance=88' 12387+1710 LDS1329 distance=89' 12409+1855 GWP1845 distance=89' 12347+1951 CVR 127 distance=90' 12355+1955 GWP1832 distance=93' 12353+1650 LDS1326 distance=94' 12348+1647 GWP1830 distance=96' 12302+1713 GRV 856 distance=98' 12422+1840 GWP1850 distance=103' 12322+1648 A 2060 distance=104' 12323+2000 HU 571 distance=106' 12400+1702 BRT2415 distance=107' 12372+2009 CBL 54 distance=111' 12359+1631 ZIE 10AB distance=113' 12359+1631 ZIE 10AC distance=113' 12396+1956 LDS1330BC distance=113' 12368+2014 AG 180 distance=115' 12396+1956 BGH 40AB distance=116' 12358+2023 SLW 739 distance=122' 12316+1631 BPM 591 distance=123' 12350+2026 CBL 385 distance=124' 12433+1734 BPM 596 distance=127' 12392+1629 HJL1072 distance=128' 12284+1652 SHN 158 distance=133' 12313+1619 GWP1822 distance=135' 12279+1637 CVR1435 distance=148' 12386+2043 HDS1771 distance=149' 12452+1927 SLW 767 distance=157' 12426+1628 SLW 763 distance=157' 12371+1546 LDS1328 distance=160' 12401+2049 OSO 47AB distance=163' 12401+2049 OSO 47AC distance=163' 12325+2106 STF1652 distance=168' 12461+1715 A 2061 distance=170' 12363+2113 FMR 108 distance=172' 12372+2112 STF1663 distance=172' 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 12351+1823 STF1657 AB 272 20.2
Show 12351+1823 CIA 32 Aa,Ab 147 0.0
Show 12355+1752 CBL 387 326 22.9 31
Show 12371+1753 LSC 51 62 0.1 41
Show 12350+1732 FAL 39 1 16.8 51
Show 12340+1921 LDS1324 332 6.2 61
Show 12394+1823 UC 2380 284 20.2 61
Show 12393+1836 CVR1457 326 5.0 61
Show 12346+1926 UC 2363 357 51.7 64
Show 12396+1817 CBL 389 282 44.6 64
Show 12351+1719 TDS 670 245 1.2 64
Show 12358+1716 CVR1453 190 3.3 68
Show 12398+1754 BPM 595 335 63.0 73
Show 12324+1717 BPM 592 25 102.2 76
Show 12307+1913 GWP1820 82 15.8 82
Show 12394+1918 TDS8472 124 0.5 83
Show 12319+1710 LDS1315 90 10.0 88
Show 12387+1710 LDS1329 264 35.4 89
Show 12409+1855 GWP1845 106 24.1 89
Show 12347+1951 CVR 127 179 60.8 90
Show 12355+1955 GWP1832 48 170.0 93
Show 12353+1650 LDS1326 124 4.4 94
Show 12348+1647 GWP1830 291 9.3 96
Show 12302+1713 GRV 856 242 8.7 98
Show 12422+1840 GWP1850 37 26.2 103
Show 12322+1648 A 2060 226 0.7 104
Show 12323+2000 HU 571 140 0.1 106
Show 12400+1702 BRT2415 138 4.4 107
Show 12372+2009 CBL 54 284 15.8 111
Show 12359+1631 ZIE 10 AB 154 10.5 113
Show 12359+1631 ZIE 10 AC 210 0.7 113
Show 12396+1956 LDS1330 BC 197 104.1 113
Show 12368+2014 AG 180 357 0.4 115
Show 12396+1956 BGH 40 AB 148 415.6 116
Show 12358+2023 SLW 739 229 18.6 122
Show 12316+1631 BPM 591 105 58.6 123
Show 12350+2026 CBL 385 192 32.2 124
Show 12433+1734 BPM 596 281 42.4 127
Show 12392+1629 HJL1072 23 118.3 128
Show 12284+1652 SHN 158 -1 0.1 133
Show 12313+1619 GWP1822 54 17.6 135
Show 12279+1637 CVR1435 162 4.8 148
Show 12386+2043 HDS1771 110 0.3 149
Show 12452+1927 SLW 767 101 132.9 157
Show 12426+1628 SLW 763 312 9.4 157
Show 12371+1546 LDS1328 259 22.0 160
Show 12401+2049 OSO 47 AB 35 14.7 163
Show 12401+2049 OSO 47 AC 109 112.6 163
Show 12325+2106 STF1652 178 6.1 168
Show 12461+1715 A 2061 194 1.2 170
Show 12363+2113 FMR 108 311 37.1 172

 
 
WDS 12351+1823 : COMPONENTS
 
 
  A Ab
Ab pa=148.2°
sep=0.00"
 
B pa=271.9°
sep=19.17"
pa=271.9°
sep=19.17"
 
 
12351+1823 A
 
 
Name 24 Com Coord arcsec 2000 123507.76+182237.4 Mag 5.11 Spectral class K2III (yellow-orange)
PmRA -4.00 PmDE 23.0 SAO 100160 HIP 61418
Tycho2 1446-02469-1 HD 109511 HR 4792 GC 17147
BD BD+19 2584 Flamsteed 24 Comae Berenices Flamsteed name 24 Com FK5 473
Tycho2
Tycho2 1446-02469-1 Pflag RAmdeg 188.78233130 DEmdeg 18.37705760
PmRA -4.3 PmDE 23.2 E RAmdeg 4 E DEmdeg 4
E pmRA 0.5 E pmDE 0.5 EpRAm 1990.71 EpDEm 1990.70
Num 21 Q RAmdeg 1.0 Q DEmdeg 1.8 Q pmRA 1.0
Q pmDE 1.6 BTmag 6.421 E BTmag 0.015 VTmag 5.109
E VTmag 0.009 Prox 201 TYC T HIP 61418
CCDM A RAdeg 188.78234167 DEdeg 18.37700444 EpRA 1990 1.66
EpDE 1990 1.73 E RAdeg 3.5 E DEdeg 3.6 Posflg
Corr 0.3
SAO
SAO 100160 DelFlag RA1950 PmRA1950 -0.0004
DE1950 PmDE1950 0.018 Vmag 5.2 SpType K0
Double code Source 74 CatNum 473 DM BD+19 2584
DMcomp A BDsup HD 109511 M HD 0
GC 17147 RA1950rad 3.28393195 DE1950rad 0.32553963 PmRA2000 -0.0004
PmDE2000 0.023
Hipparcos
Catalog H HIP 61418 Proxy RAhms 12 35 07.76
DEdms +18 22 37.2 Vmag 5.03 VarFlag R Vmag G
RAdeg 188.782 DEdeg 18.377 AstroRef A Plx 5.31
CCDM 12351+1823 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 109511 BD BD+19 2584
CD CP Dm number +19 2584 VIred 1.12
SpType K2III R SpType Coord arcsec 2000 123507.76+182237.2
Hipparcos 2
HIP 61418 Sn 95 So 3 Nc 1
RArad 3.2948734657 DErad 0.3207391918 Plx 7.24 PmRA -0.48
PmDE 22.24 E RArad 1.94 E DErad 1.54 E Plx 2.74
E pmRA 3.05 E pmDE 1.94 Hpmag 5.1936 E Hpmag 0.0281
SHp 0.06 VA 0 BV 1.152 E BV 0.018
VI 1.12
CCDM
Ccdm 12351+1823 RComp Comp A Note1
Note2 Discov num DRAs 1.75 DDEs -22.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.2 Sp K0 PmNote *
PmRA -6 PmDE 18 Dm number +19 2584 Cat1 BD
Name2 100160 Cat2 SAO HD 109511 M HD
ADS BDS A 8600 M ADS BDS N IDS IDS 12301N1856A
HIC 61418
 
 
12351+1823 Ab
 
 
Coord arcsec 2000 123507.76+182237.4 Mag 6.8 Calc delta mag 0.2 Calc coord yes
 
 
12351+1823 B
 
 
Coord arcsec 2000 123506.41+182238.0 Mag 6.33 PmRA -1.00 PmDE 25.0
SAO 100159 HIP 61415 Tycho2 1446-02468-1 HD 109510
HR 4791 GC 17146 Flamsteed 24 Comae Berenices Flamsteed name 24 Com
Calc delta mag 0.27 Calc coord yes
Tycho2
Tycho2 1446-02468-1 Pflag RAmdeg 188.77644224 DEmdeg 18.37711265
PmRA -1.3 PmDE 24.9 E RAmdeg 4 E DEmdeg 4
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.52 EpDEm 1991.54
Num 4 Q RAmdeg 0.2 Q DEmdeg 0.8 Q pmRA 0.3
Q pmDE 0.8 BTmag 6.762 E BTmag 0.015 VTmag 6.325
E VTmag 0.010 Prox 201 TYC T HIP 61415
CCDM B RAdeg 188.77644556 DEdeg 18.37705472 EpRA 1990 1.60
EpDE 1990 1.63 E RAdeg 4.0 E DEdeg 4.0 Posflg
Corr 0.3
SAO
SAO 100159 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 0.019 Vmag 6.7 SpType A3
Double code Source 70 CatNum 17146 DM BD+19 2584
DMcomp B BDsup HD 109510 M HD 0
GC 17146 RA1950rad 3.28382766 DE1950rad 0.32554191 PmRA2000 -0.0002
PmDE2000 0.024
Hipparcos
Catalog H HIP 61415 Proxy RAhms 12 35 06.35
DEdms +18 22 37.3 Vmag 6.57 VarFlag R Vmag G
RAdeg 188.776 DEdeg 18.377 AstroRef B Plx 1.24
CCDM 12351+1823 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD 109510 BD
CD CP Dm number VIred 0.27
SpType A7m R SpType Coord arcsec 2000 123506.35+182237.3
Hipparcos 2
HIP 61415 Sn 95 So 3 Nc 1
RArad 3.2947705201 DErad 0.3207398944 Plx 19.29 PmRA -26.65
PmDE 17.63 E RArad 10.8 E DErad 7.89 E Plx 14.58
E pmRA 15.15 E pmDE 9.78 Hpmag 6.4899 E Hpmag 0.0766
SHp 0 VA 0 BV 0.265 E BV 0.015
VI 0.27
CCDM
Ccdm 12351+1823 RComp Comp B Note1
Note2 Discov num STF1657 DRAs 0.38 DDEs -22.6
R dRAs 10 Year 1830 Theta 271 Rho 20.3
Obs 30 Vmag 6.7 Sp A3 PmNote *
PmRA 13 PmDE 19 Dm number Cat1
Name2 100159 Cat2 SAO HD 109510 M HD
ADS BDS A 8600 M ADS BDS N N IDS IDS 12301N1856B
HIC 61415