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Doubles in session


Current system
13100+1732
STF 1728 AB,C
Alp Com


Nearby doubles
19' : 13094+1715
GOM 36

23' : 13104+1710
CVR1488

31' : 13086+1710
BPMA 45

34' : 13123+1731
PAT 47

36' : 13124+1743
GWP1938

55' : 13131+1801
S 648

58' : 13119+1823
LDS 947

59' : 13102+1831
CVR1487

62' : 13135+1656
SLW 837

63' : 13143+1743
GWP1948

64' : 13144+1732
CBL 415

69' : 13147+1750
LDS4331

76' : 13047+1736
BPM 600

77' : 13149+1700
GWP1952

85' : 13133+1621
DOC 1

89' : 13150+1824
GWP1955

90' : 13062+1621
HEI 370

90' : 13122+1608
A 2225

93' : 13163+1715
STF1733

103' : 13171+1739
GWP1962

103' : 13169+1701
BU 800AB

105' : 13136+1903
CVR1494

110' : 13046+1614
UC 2469

111' : 13114+1543
SLN 78

111' : 13153+1612
SLE 917

113' : 13179+1737
LDS4339



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.

13100+1732 STF 1728 AB,C (Alp Com)

 
 
13h 09m 59.28s +17° 31' 46.0" P.A. 349.00 sep 84.8 mag 4.43,11.45 Sp F5V dist. 17.83 pc (58.16 l.y.)
 
 
Coord 2000 13100+1732 Discov num STF1728 Comp AB,C Coord arcsec 2000 13 09 59.28 +17 31 46.0
Date first 1851 Date last 2014 Obs 14
Pa first 322 Pa last 349.3 P.A. Now (θ) 349.3°
Sep first 135.6 Sep last 84.77 Sep. Now (ρ) 84.77"
Mag pri 4.43 Mag sec 11.45 delta mag (ΔM) 7.02 Spectral class F5V (yellow-white)
Pri motion ra -433 Sec motion ra -012
Pri motion dec +141 Sec motion dec -001
Notes N L (See Notes, Linear solution)
rPM=0.976
This double is not physical.
 
 
13100+1732 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Diadem 100443 13 09 59 +17 31 46 STF 1728 AB 2020 664 195 0.5 4.85 5.53 0.68 Y
Show Alp Com 100443 13 09 59 +17 31 46 STF 1728 AB,C 2014 14 349 84.8 4.43 11.45 7.02 <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Alp Com Var name NSV6116 Com Constellation Coma Berenices SAO 100443
HIP 64241 Tycho2 1454-01134-1 HD 114378 HR 4968
GC 17833 ADS 8804 GL Gl 501A BD BD+18 2697
Bayer Alpha Comae Berenices Bayer name Alp Com Flamsteed 42 Comae Berenices Flamsteed name 42 Com
Distance 17.83 Distance ly 58.16 Bayer greek α Com
 
 
WDS 13100+1732 STF 1728 AB,C (Alp Com) : NOTES
 
 
discov_num notes refcode
STF1728 42 Com = alp Com = Diadem. Baz1964
AB: Additional notes may be found in Madler (1844). Mad1844
AB. A preliminary orbit for this edge-on pair indicates that one of
the F5 V stars may partially eclipse the other in early 1990.
Components reversed rel std sol's, e.g. in Hartkopf et al. Hrt1989
(1989). Their preliminary orbit for this edge-on pair indicated that
one F5V star may have partially eclipsed the other in early 1990.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
1997.1179: The magnitude difference of the system is listed in the WDS
as 0.0. Our reduction does not give the quadrant unambiguously, so we
adopt the quadrant that gives a position angle consistent with
previous measures in the WDS. Hor1997
Spectral types amd masses of components assigned by ten Brummelaar et
al., based on adaptive optics observations. TtB2000
Calculated mass sum is 2.45 +/- 0.18 Msun, reasonable for two F5
dwarfs. Closest approach of about 0.32 mas is predicted around 2015
Jan 24 (to within about a week), eclipse duration ~1.5 days. Mut2010b
Muterspaugh et al. (2015) revised their orbit, following discovery of Mut2015
three old measures whose theta measures had incorrect quadrants, which
had led to an incorrect prediction of the eclipse timing.
 
 
REFERENCES
 
 
refcode metd author reference
Baz1964 Ma - Baize, P. 1964JO.....47....1B
Baz1964 +orb J. Obs. 47, 1-26, 1964
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Hor1997 S j Horch, E.P., Ninkov, Z., & Slawson, R. 1997AJ....114.2117H
Hor1997 AJ 114, 2117, 1997
Hrt1989 orb - Hartkopf, W.I., McAlister, H.A., & Franz, O.G. 1989AJ.....98.2275B
Hrt1989 AJ 98, 1014, 1989
Mad1844 Ma - Maedler, J.H. .
Mad1844 Dorpat Observations 11, 3, 1844
Mut2010b Kp - Muterspaugh, M.W., Hartkopf, W.I., Lane. B.F., O'Connell, J., Williamson, M., 2010AJ....140.1623M
Mut2010b Kulkarni, S.R., Konacki, M., Burke, B.F., Colavita, M.M., Shao, M., &
Mut2010b Wiktorowicz, S.J.
Mut2010b AJ 140, 1623, 2010
Mut2015 Kf j Muterspaugh, M.W., Mijngaarden, M.J.P., Henrichs, H.F., Lane, B.F., Hartkopf, W., 2015AJ....150..140M
Mut2015 +Kn Henry, G.W., Schaefer, G.H., Farrington, C., Hummel, C.A., & Zavala, R.T.
Mut2015 +orb AJ 150, 140, 2015
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
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
13100+1732 STF1728 AB,C 1998 12 345 88.7 5.20 10.20 F5V N D 130959.55+173144.8
13100+1732 STF1728 AB,C 2001 13 346 87.2 5.20 10.20 F5V N D 130959.55+173144.8
13100+1732 STF1728 AB,C 2014 14 349 84.8 5.20 10.20 F5V N 130959.55+173144.8

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

 
 
WDS 13100+1732 STF 1728 AB,C (Alp Com) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13100+1732 STF 1728 AB,C (Alp Com) : MEASURES
 
 
No records found.

 
 
WDS 13100+1732 (Alp Com) : VIRTUAL EYEPIECE
 
 

13100+1732 STF1728A mag 4.85 Sp F5V 13100+1732 STF1728B sep 0.5 P.A. 193.90 mag 5.53 Sp F6V 13100+1732 STF1728C sep 84.6 P.A. 349.80 mag 11.45 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 13100+1732 (Alp Com) : ALADIN DSS IMAGE @ 13h 09m 59.28s +17° 31' 46.0"
 
 
 
 
WDS 13100+1732 STF 1728 AB,C (Alp Com) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13100+1732 STF1728AB (Diadem) distance=1' 13100+1732 STF1728AB,C distance=1' 13094+1715 GOM 36 distance=19' 13104+1710 CVR1488 distance=23' 13086+1710 BPMA 45 distance=31' 13123+1731 PAT 47 distance=34' 13124+1743 GWP1938 distance=36' 13131+1801 S 648 distance=55' 13119+1823 LDS 947 distance=58' 13102+1831 CVR1487 distance=59' 13135+1656 SLW 837 distance=62' 13143+1743 GWP1948 distance=63' 13144+1732 CBL 415 distance=64' 13147+1750 LDS4331 distance=69' 13047+1736 BPM 600 distance=76' 13149+1700 GWP1952 distance=77' 13133+1621 DOC 1 distance=85' 13150+1824 GWP1955 distance=89' 13062+1621 HEI 370 distance=90' 13122+1608 A 2225 distance=90' 13163+1715 STF1733 distance=93' 13171+1739 GWP1962 distance=103' 13169+1701 BU 800AB distance=103' 13169+1701 BU 800AC distance=103' 13169+1701 BU 800AD distance=103' 13136+1903 CVR1494 distance=105' 13046+1614 UC 2469 distance=110' 13114+1543 SLN 78 distance=111' 13153+1612 SLE 917 distance=111' 13179+1737 LDS4339 distance=113' 13166+1838 UC 2511 distance=116' 13171+1829 SLW 847 distance=116' 13059+1549 GRV 862 distance=118' 13129+1925 KPP 971 distance=121' 13084+1529 STF1722 distance=125' 13182+1650 KPP3891 distance=125' 13154+1911 LDS4332 distance=125' 13013+1748 COU 297 distance=126' 13105+1938 KPP3888 distance=127' 13162+1556 CBL 417 distance=131' 13193+1759 LDS4345 distance=136' 13042+1924 STF1715 distance=140' 13006+1822 BU 112A,BC distance=143' 13020+1857 SLW 812 distance=143' 13006+1822 BU 112BC distance=144' 12599+1743 GWP1887 distance=145' 13197+1642 BRT1279 distance=148' 13203+1746 A 2166AB distance=148' 13203+1746 A 2166AC distance=148' 13065+1959 SLW 824 distance=156' 13083+2008 CVR 680 distance=158' 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 Diadem 13100+1732 STF1728 AB 195 0.5 1
Show 13100+1732 STF1728 AB,C 349 84.8 1
Show 13094+1715 GOM 36 225 501.2 19
Show 13104+1710 CVR1488 108 4.0 23
Show 13086+1710 BPMA 45 326 151.3 31
Show 13123+1731 PAT 47 27 3.3 34
Show 13124+1743 GWP1938 202 169.7 36
Show 13131+1801 S 648 69 88.2 55
Show 13119+1823 LDS 947 117 453.7 58
Show 13102+1831 CVR1487 322 3.0 59
Show 13135+1656 SLW 837 77 55.9 62
Show 13143+1743 GWP1948 326 50.0 63
Show 13144+1732 CBL 415 341 20.0 64
Show 13147+1750 LDS4331 189 23.2 69
Show 13047+1736 BPM 600 200 79.3 76
Show 13149+1700 GWP1952 325 188.3 77
Show 13133+1621 DOC 1 261 0.1 85
Show 13150+1824 GWP1955 327 486.7 89
Show 13062+1621 HEI 370 287 1.0 90
Show 13122+1608 A 2225 73 3.0 90
Show 13163+1715 STF1733 128 4.9 93
Show 13171+1739 GWP1962 64 203.5 103
Show 13169+1701 BU 800 AB 104 7.7 103
Show 13169+1701 BU 800 AC 334 128.2 103
Show 13169+1701 BU 800 AD 74 35.2 103
Show 13136+1903 CVR1494 356 4.1 105
Show 13046+1614 UC 2469 211 40.6 110
Show 13114+1543 SLN 78 144 10.0 111
Show 13153+1612 SLE 917 299 28.3 111
Show 13179+1737 LDS4339 320 5.8 113
Show 13166+1838 UC 2511 58 44.9 116
Show 13171+1829 SLW 847 292 132.9 116
Show 13059+1549 GRV 862 206 27.4 118
Show 13129+1925 KPP 971 260 7.9 121
Show 13084+1529 STF1722 337 2.7 125
Show 13182+1650 KPP3891 355 1.5 125
Show 13154+1911 LDS4332 7 137.0 125
Show 13013+1748 COU 297 188 0.3 126
Show 13105+1938 KPP3888 196 1.8 127
Show 13162+1556 CBL 417 273 19.3 131
Show 13193+1759 LDS4345 268 39.9 136
Show 13042+1924 STF1715 231 7.3 140
Show 13006+1822 BU 112 A,BC 138.5 143
Show 13020+1857 SLW 812 38 54.4 143
Show 13006+1822 BU 112 BC 299 2.1 144
Show 12599+1743 GWP1887 314 33.7 145
Show 13197+1642 BRT1279 292 4.5 148
Show 13203+1746 A 2166 AB 341 0.1 148
Show 13203+1746 A 2166 AC 226 2.2 148
Show 13065+1959 SLW 824 289 15.7 156
Show 13083+2008 CVR 680 186 13.4 158

 
 
WDS 13100+1732 : COMPONENTS
 
 
  A B
B pa=193.9°
sep=0.46"
 
C pa=349.8°
sep=84.64"
pa=349.9°
sep=85.06"
 
 
13100+1732 A
 
 
Common name Diadem Meaning tiara Other names DIADEMA Coord arcsec 2000 130959.28+173146.0
Mag 4.85 Spectral class F5V (yellow-white) PmRA -433.00 PmDE 141.0
SAO 100443 HIP 64241 Tycho2 1454-01134-1 HD 114378
HR 4968 GC 17833 BD BD+18 2697 Bayer Alpha Comae Berenices
Bayer name Alp Com Flamsteed 42 Comae Berenices Flamsteed name 42 Com
Tycho2
Tycho2 1454-01134-1 Pflag RAmdeg 197.49702877 DEmdeg 17.52944436
PmRA -430.1 PmDE 137.8 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.34 EpDEm 1991.24
Num 17 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.6
Q pmDE 1.2 BTmag 4.915 E BTmag 0.014 VTmag 4.427
E VTmag 0.009 Prox 999 TYC HIP 64241
CCDM RAdeg 197.49807139 DEdeg 17.52912194 EpRA 1990 1.68
EpDE 1990 1.58 E RAdeg 3.6 E DEdeg 3.8 Posflg P
Corr 0.2
SAO
SAO 100443 DelFlag RA1950 PmRA1950 -0.0302
DE1950 PmDE1950 0.131 Vmag 4.5 SpType F5
Double code Source 70 CatNum 17833 DM BD+18 2697
DMcomp BDsup HD 114378 M HD 9
GC 17833 RA1950rad 3.43635845 DE1950rad 0.31055345 PmRA2000 -0.0301
PmDE2000 0.136
Hipparcos
Catalog H HIP 64241 Proxy RAhms 13 09 59.55
DEdms +17 31 44.8 Vmag 4.32 VarFlag R Vmag G
RAdeg 197.498 DEdeg 17.5291 AstroRef Plx 69.81
CCDM 13100+1732 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD 114378 BD BD+18 2697
CD CP Dm number +18 2697 VIred 0.53
SpType F5V R SpType Coord arcsec 2000 130959.55+173144.8
Hipparcos 2
HIP 64241 Sn 1 So 2 Nc 1
RArad 3.4469925602 DErad 0.3059407189 Plx 56.1 PmRA -433.13
PmDE 141.24 E RArad 0.72 E DErad 0.64 E Plx 0.89
E pmRA 0.7 E pmDE 0.51 Hpmag 4.4292 E Hpmag 0.0008
SHp 0.006 VA 0 BV 0.455 E BV 0.008
VI 0.53
CCDM
Ccdm 13100+1732 RComp Comp A Note1
Note2 Discov num DRAs -1.23 DDEs -11.4
R dRAs 65 Year Theta Rho
Obs 3 Vmag 5.2 Sp F5 PmNote *
PmRA -432 PmDE 131 Dm number +18 2697 Cat1 BD
Name2 +17 1350 Cat2 AGK2/3 HD 114378 M HD
ADS BDS A 8804 M ADS BDS N IDS IDS 13051N1803A
HIC 64241
 
 
13100+1732 B
 
 
Coord arcsec 2000 130959.27+173145.6 Mag 5.53 Spectral class F6V (yellow-white) PmRA -430.00
PmDE 138.0 Calc delta mag 0.68 Calc coord yes
CCDM
Ccdm 13100+1732 RComp Comp B Note1 *
Note2 Discov num STF1728 DRAs DDEs
R dRAs Year 1827 Theta Rho
Obs 99 Vmag 5.2 Sp F5 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD 114379 M HD
ADS BDS A 8804 M ADS BDS N IDS IDS 13051N1803B
HIC 64241
 
 
13100+1732 C
 
 
Coord arcsec 2000 130958.23+173309.3 Mag 11.45 PmRA -12.00 PmDE -1.0
Calc delta mag 6.6 Calc coord yes
CCDM
Ccdm 13100+1732 RComp Comp C Note1
Note2 Discov num STF1728 DRAs -2.22 DDEs 71.8
R dRAs 65 Year 1923 Theta 330 Rho 110.3
Obs 6 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8804 M ADS BDS N IDS IDS 13051N1803C
HIC