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Doubles in session


Current system
12579+4948
HU 641
HD 233997


Nearby doubles
8' : 12586+4951
HEI 163

23' : 12591+5008
KPP1873

33' : 12586+4916
BVD 225

34' : 13012+4938
OSW 54

45' : 13001+5027
LEP 135

50' : 13008+4908
CVR 676

51' : 12595+4901
BEM 3

61' : 12524+5017
COU2188

77' : 12508+5022
TDS8554

78' : 12544+5058
SLW 793

86' : 13050+5041
LDS3070

90' : 12526+5103
COU2189

96' : 13078+4955
BEM 4

97' : 12524+4828
UC 2418

102' : 13055+5059
HU 643AB

103' : 13057+4840
KPP1978

103' : 12523+4822
YSC 100

108' : 13080+4907
HJ 2642

108' : 12492+5055
ES 730

116' : 12460+4949
STF1679AB

126' : 13043+5138
TDS8676AB

128' : 13105+5029
SLW 834

130' : 13107+5028
OSW 49

135' : 12439+4950
BEM 1

135' : 12463+5105
WIS 205

136' : 13033+4744
HJ 2634



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.

12579+4948 HU 641 (HD 233997)

 
 
12h 57m 53.94s +49° 48' 16.8" P.A. 300.00 sep 0.1 mag 10.30,10.30 Sp K3III
 
 
Coord 2000 12579+4948 Discov num HU  641 Comp Coord arcsec 2000 12 57 53.94 +49 48 16.8
Date first 1903 Date last 2007 Obs 8
Pa first 190 Pa last 300.1 P.A. Now (θ) 300.1°
Sep first 0.4 Sep last 0.138 Sep. Now (ρ) 0.138"
Mag pri 10.30 Mag sec 10.30 delta mag (ΔM) 0 Spectral class K3III (yellow-orange)
Pri motion ra +002 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 233997 Constellation Canes Venatici SAO 28581 Tycho2 3461-02425-1
Gaia DR2 1555775078898034944 HD 233997 ADS 8718
 
 
ORBITAL ELEMENTS
 
 
Period (P)323.48y Periastron (T)1963.41y Semi-major axis (a)0.366a
Eccentricity (e)0.51 Inclination (i)140.8° Longitude of periastron (ω)357.8°
Node (Ω)58.3° Notesn ReferenceErc1986b
Equinox Last observation1980 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 319.1 0.230
2001 317.2 0.234
2002 315.4 0.238
2003 313.7 0.242
2004 312.0 0.246
2005 310.4 0.250
2006 308.8 0.254
2007 307.3 0.258
2008 305.8 0.262
2009 304.4 0.266
2010 303.0 0.270
2011 301.7 0.274
2012 300.4 0.279
2013 299.1 0.283
2014 297.9 0.287
2015 296.7 0.291
2016 295.6 0.296
2017 294.4 0.300
2018 293.3 0.304
2019 292.3 0.308
2020 291.3 0.313
2021 290.3 0.317
2022 289.3 0.321
2023 288.3 0.325
2024 287.4 0.329
2025 286.5 0.334
2026 285.6 0.338
2027 284.8 0.342
2028 283.9 0.346
2029 283.1 0.350
2030 282.3 0.354


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


 
  


wds12579%2B4948a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 12579+4948 HU 641 (HD 233997) : NOTES
 
 
discov_num notes refcode
HU 641 Apparent rapid motion. A premature orbit has been calculated.
 
 
REFERENCES
 
 
refcode metd author reference
Erc1986b orb - Erceg, V. & Olevic, D. 1986BOBeo.136...78E
Erc1986b Bull. Obs. Astron. Belgrade #136, 78, 1986
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12579+4948 HU 641 1980 7 202 0.1 10.30 10.30 K3III NO 125753.94+494816.8
12579+4948 HU 641 2007 8 300 0.1 10.30 10.30 K3III NO 125753.94+494816.8

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

 
 
WDS 12579+4948 HU 641 (HD 233997) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12579+4948 HU 641 (HD 233997) : MEASURES
 
 
No records found.

 
 
WDS 12579+4948 (HD 233997) : VIRTUAL EYEPIECE
 
 

12579+4948 HU 641A mag 10.3 Sp K3III 12579+4948 HU 641B sep 0.1 P.A. 311.90 mag 10.3 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 12579+4948 (HD 233997) : ALADIN DSS IMAGE @ 12h 57m 53.94s +49° 48' 16.8"
 
 
 
 
WDS 12579+4948 HU 641 (HD 233997) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12579+4948 HU 641 distance=0' 12586+4951 HEI 163 distance=8' 12591+5008 KPP1873 distance=23' 12586+4916 BVD 225 distance=33' 13012+4938 OSW 54 distance=34' 13001+5027 LEP 135 distance=45' 13008+4908 CVR 676 distance=50' 12595+4901 BEM 3 distance=51' 12524+5017 COU2188 distance=61' 12508+5022 TDS8554 distance=77' 12544+5058 SLW 793 distance=78' 13050+5041 LDS3070 distance=86' 12526+5103 COU2189 distance=90' 13078+4955 BEM 4 distance=96' 12524+4828 UC 2418 distance=97' 13055+5059 HU 643AB distance=102' 13055+5059 STF1718AB,C distance=102' 13057+4840 KPP1978 distance=103' 12523+4822 YSC 100 distance=103' 13080+4907 HJ 2642 distance=108' 12492+5055 ES 730 distance=108' 12460+4949 STF1679AB distance=116' 12460+4949 STF1679AC distance=116' 13043+5138 TDS8676AB distance=126' 13105+5029 SLW 834 distance=128' 13107+5028 OSW 49 distance=130' 12439+4950 BEM 1 distance=135' 12463+5105 WIS 205 distance=135' 13033+4744 HJ 2634 distance=136' 12437+4942 TDS8505 distance=139' 12576+4728 HJ 2627 distance=141' 12556+4729 SLW 797 distance=142' 13083+5130 CVR 681 distance=143' 13117+4904 BVD 229 distance=143' 13036+4736 LDS4311 distance=144' 12496+5151 LDS3061 distance=146' 12522+4733 CVR 668 distance=147' 12458+5129 DAM2484 distance=154' 12417+4945 CVR 662 distance=157' 13069+5200 A 1605 distance=158' 12591+4709 HDS1821 distance=160' 12500+4727 TDS8543 distance=162' 12596+4706 SLW 805 distance=163' 12412+5038 CBL 392 distance=168' 13041+5227 MLR 704 distance=170' 12407+5030 SLW 754 distance=171' 12420+5107 ES 728 distance=172' 13054+5226 SLW 820 distance=173' 12442+5146 RDR 5 distance=175' 13149+4847 PKO 10 distance=178' 12585+5246 SLW 802 distance=178' 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 12579+4948 HU 641 300 0.1
Show 12586+4951 HEI 163 234 1.0 8
Show 12591+5008 KPP1873 260 14.6 23
Show 12586+4916 BVD 225 143 20.4 33
Show 13012+4938 OSW 54 51 83.0 34
Show 13001+5027 LEP 135 63 4.6 45
Show 13008+4908 CVR 676 246 14.8 50
Show 12595+4901 BEM 3 205 18.1 51
Show 12524+5017 COU2188 46 0.3 61
Show 12508+5022 TDS8554 34 0.4 77
Show 12544+5058 SLW 793 128 32.9 78
Show 13050+5041 LDS3070 315 2.0 86
Show 12526+5103 COU2189 100 0.9 90
Show 13078+4955 BEM 4 356 22.1 96
Show 12524+4828 UC 2418 268 44.0 97
Show 13055+5059 HU 643 AB 332 0.2 102
Show 13055+5059 STF1718 AB,C 272 13.1 102
Show 13057+4840 KPP1978 13 15.6 103
Show 12523+4822 YSC 100 145 0.3 103
Show 13080+4907 HJ 2642 178 9.2 108
Show 12492+5055 ES 730 63 3.6 108
Show 12460+4949 STF1679 AB 208 5.9 116
Show 12460+4949 STF1679 AC 37 69.1 116
Show 13043+5138 TDS8676 AB 312 0.4 126
Show 13105+5029 SLW 834 220 174.0 128
Show 13107+5028 OSW 49 321 68.6 130
Show 12439+4950 BEM 1 204 9.6 135
Show 12463+5105 WIS 205 173 999.9 135
Show 13033+4744 HJ 2634 61 33.0 136
Show 12437+4942 TDS8505 175 0.5 139
Show 12576+4728 HJ 2627 133 17.5 141
Show 12556+4729 SLW 797 87 153.2 142
Show 13083+5130 CVR 681 357 8.9 143
Show 13117+4904 BVD 229 43 22.8 143
Show 13036+4736 LDS4311 250 36.7 144
Show 12496+5151 LDS3061 4 141.0 146
Show 12522+4733 CVR 668 100 27.0 147
Show 12458+5129 DAM2484 342 2.3 154
Show 12417+4945 CVR 662 53 14.7 157
Show 13069+5200 A 1605 349 1.1 158
Show 12591+4709 HDS1821 150 1.0 160
Show 12500+4727 TDS8543 219 0.5 162
Show 12596+4706 SLW 805 273 9.7 163
Show 12412+5038 CBL 392 138 13.1 168
Show 13041+5227 MLR 704 38 0.4 170
Show 12407+5030 SLW 754 10 75.2 171
Show 12420+5107 ES 728 332 6.3 172
Show 13054+5226 SLW 820 246 77.7 173
Show 12442+5146 RDR 5 281 2.3 175
Show 13149+4847 PKO 10 269 20.4 178
Show 12585+5246 SLW 802 101 23.3 178

 
 
WDS 12579+4948 : COMPONENTS
 
 
  A
B pa=311.9°
sep=0.10"
 
 
12579+4948 A
 
 
Componente originario normalizzato AB Name HD 233997 Coord arcsec 2000 125753.94+494816.8 Mag 10.3
Spectral class K3III (yellow-orange) PmRA 2.00 PmDE -1.0 SAO 28581
Tycho2 3461-02425-1 HD 233997 DM BD+50 1965
Tycho2
Tycho2 3461-02425-1 Pflag RAmdeg 194.47478932 DEmdeg 49.80467016
PmRA -2.5 PmDE 2.6 E RAmdeg 21 E DEmdeg 20
E pmRA 1.5 E pmDE 1.5 EpRAm 1986.68 EpDEm 1987.03
Num 8 Q RAmdeg 0.7 Q DEmdeg 1.5 Q pmRA 0.7
Q pmDE 1.4 BTmag 12.114 E BTmag 0.099 VTmag 10.202
E VTmag 0.028 Prox 999 TYC T HIP
CCDM RAdeg 194.47479806 DEdeg 49.80466972 EpRA 1990 1.55
EpDE 1990 1.58 E RAdeg 24.3 E DEdeg 23.3 Posflg
Corr -0.2
SAO
SAO 28581 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 -0.006 Vmag 9.2 SpType K5
Double code Source 37 CatNum 4178 DM BD+50 1965
DMcomp BDsup HD 233997 M HD 0
GC RA1950rad 3.38446222 DE1950rad 0.87396261 PmRA2000 0.0016
PmDE2000 -0.001
CCDM
Ccdm 12579+4948 RComp Comp A Note1
Note2 Discov num DRAs -0.10 DDEs 17.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 10.3 Sp K5 PmNote *
PmRA -7 PmDE 12 Dm number +50 1965 Cat1 BD
Name2 +50 974 Cat2 AGK2/3 HD 233997 M HD
ADS BDS A 8718 M ADS BDS N IDS IDS 12534N5021A
HIC
 
 
12579+4948 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 125753.93+494816.9 Mag 10.3 Calc coord yes
CCDM
Ccdm 12579+4948 RComp Comp B Note1 *
Note2 Discov num HU 641 DRAs DDEs
R dRAs Year 1946 Theta 093 Rho 0.2
Obs 6 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8718 M ADS BDS N N IDS IDS 12534N5021B
HIC