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Doubles in session


Current system
04163+0710
WSI 97
HD 26990


Nearby doubles
46' : 04194+0710
FAL 8

51' : 04141+0630
HEI 640

53' : 04136+0743
A 1938

58' : 04200+0657
LDS3575

60' : 04155+0611
STTA 45AB

67' : 04194+0623
HJ 675AB

80' : 04208+0628
HJ 2226

80' : 04216+0658
A 1835

82' : 04141+0555
KPP 108

85' : 04212+0627
SLW 171

87' : 04105+0719
GWP 560

89' : 04220+0734
SKF1688

93' : 04212+0614
A 1834

94' : 04226+0711
GWP 579

111' : 04145+0857
LDS3565

112' : 04135+0853
BU 1278AB

114' : 04111+0832
YSC 28

117' : 04241+0707
OSW 80

118' : 04143+0515
SHN 7

123' : 04113+0531
ENG 18

130' : 04246+0634
SKF1689

130' : 04250+0719
GWP 583

131' : 04139+0916
BU 547AB

133' : 04094+0546
LAW 12

133' : 04216+0523
A 1836

139' : 04085+0827
STF 497



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.

04163+0710 WSI 97 (HD 26990)

 
 
04h 16m 16.55s +07° 09' 34.5" P.A. 144.00 sep 0.2 mag 7.70,9.70 Sp G0 dist. 30.64 pc (99.95 l.y.)
 
 
Coord 2000 04163+0710 Discov num WSI  97 Comp Coord arcsec 2000 04 16 16.55 +07 09 34.5
Date first 2001 Date last 2021 Obs 18
Pa first 123 Pa last 144.4 P.A. Now (θ) 144.4°
Sep first 0.1 Sep last 0.16 Sep. Now (ρ) 0.16"
Mag pri 7.70 Mag sec 9.70 delta mag (ΔM) 2 Spectral class G0 (yellow)
Pri motion ra -091 Sec motion ra
Pri motion dec -043 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 26990 Constellation Taurus SAO 111707 HIP 19911
Tycho2 0080-01377-1 Gaia DR2 3297396274614449920 HD 26990 GC 5156
BD BD+06 652 Distance 30.64 Distance ly 99.95
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.6805y± 0.0058 Periastron (T)1997.088y± 0.011 Semi-major axis (a)0.1011a± 0.0009
Eccentricity (e)0.808± 0.005 Inclination (i)148° Longitude of periastron (ω)47.6°± 1.7
Node (Ω)358.1°± 1.7 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 134.4 0.168
2001 121.6 0.146
2002 98.7 0.092
2003 197.0 0.048
2004 155.9 0.137
2005 142.2 0.166
2006 130.6 0.164
2007 116.3 0.133
2008 81.7 0.065
2009 173.4 0.088
2010 150.9 0.150
2011 138.5 0.169
2012 126.6 0.157
2013 109.6 0.116
2014 32.8 0.032
2015 163.3 0.115
2016 146.6 0.160
2017 134.9 0.168
2018 122.2 0.148
2019 100.3 0.095
2020 203.7 0.041
2021 156.6 0.134
2022 142.7 0.166
2023 131.1 0.165
2024 117.0 0.135
2025 84.7 0.069
2026 175.2 0.083
2027 151.5 0.149
2028 139.0 0.168
2029 127.2 0.158
2030 110.6 0.118


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


 
  


wds04163%2B0710b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04163+0710 WSI 97 (HD 26990) : NOTES
 
 
discov_num notes refcode
WSI 97 This is a single-lined nearby binary. Using the radial velocities
measured by D. Latham (2012, private communication), we computed a
combined orbit (the previous visual orbit reported by Riddle et al. RAO2015
(2015) had a wrong period). The inclination is close to 180deg and had
to be fixed in order to match the RV amplitude. Tok2015c
 
 
REFERENCES
 
 
refcode metd author reference
RAO2015 Ag u Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr., 2015ApJ...799....4R
RAO2015 +orb Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
RAO2015 Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
RAO2015 ApJ 799, 4, 2015
RAO2015 (Note: Paper includes separation/magnitude difference limits for all stars
RAO2015 observed. These limits have been added to the Interferometric Catalog even for
RAO2015 resolved pairs, to indicate restrictions on any potential additional components.)
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 WSI Douglass, G.G., Hindsley, R.B., & Worley, C.E.
10 WSI Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L.,
10 WSI Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
13 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I.,
13 WSI Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
14 WSI Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M.,
14 WSI Hennessy, G.S., Platais, I., et al.
15 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M.,
15 WSI Hennessy, G.S., Rafferty, T.J., et al.
42 WSI Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian,
42 WSI C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
52 WSI Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice,
52 WSI M., Kilian, C.M. & Warner, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04163+0710 WSI 97 2012 6 111 0.1 7.70 9.70 G0 N 041616.55+070934.5
04163+0710 WSI 97 2015 11 160 0.1 7.70 9.70 G0 NO 041616.55+070934.5
04163+0710 WSI 97 2016 14 134 0.2 7.70 9.70 G0 NO 041616.55+070934.5
04163+0710 WSI 97 2018 16 106 0.1 7.70 9.70 G0 NO 041616.55+070934.5
04163+0710 WSI 97 2020 17 157 0.1 7.70 9.70 G0 NO 041616.55+070934.5
04163+0710 WSI 97 2021 18 144 0.2 7.70 9.70 G0 NO 041616.55+070934.5

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

 
 
WDS 04163+0710 WSI 97 (HD 26990) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04163+0710 WSI 97 (HD 26990) : MEASURES
 
 
No records found.

 
 
WDS 04163+0710 (HD 26990) : VIRTUAL EYEPIECE
 
 

04163+0710 WSI 97A mag 7.7 Sp G0 04163+0710 WSI 97B sep 0.2 P.A. 144.60 mag 9.7 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 04163+0710 (HD 26990) : ALADIN DSS IMAGE @ 04h 16m 16.55s +07° 09' 34.5"
 
 
 
 
WDS 04163+0710 WSI 97 (HD 26990) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04163+0710 WSI 97 distance=0' 04194+0710 FAL 8 distance=46' 04141+0630 HEI 640 distance=51' 04136+0743 A 1938 distance=53' 04155+0611 STU 18CE distance=57' 04155+0611 H 6 98CD distance=57' 04200+0657 LDS3575 distance=58' 04155+0611 AMM 2BF distance=59' 04155+0611 AMM 2BG distance=59' 04155+0611 STTA 45AB distance=60' 04155+0611 H 6 98AC distance=60' 04194+0623 HJ 675AB distance=67' 04194+0623 HJ 675AC distance=67' 04208+0628 HJ 2226 distance=80' 04216+0658 A 1835 distance=80' 04141+0555 KPP 108 distance=82' 04212+0627 SLW 171 distance=85' 04105+0719 GWP 560 distance=87' 04220+0734 SKF1688 distance=89' 04212+0614 A 1834 distance=93' 04226+0711 GWP 579 distance=94' 04145+0857 LDS3565 distance=111' 04135+0853 BU 1278AB distance=112' 04135+0853 BU 1278AC distance=112' 04111+0832 YSC 28 distance=114' 04241+0707 OSW 80 distance=117' 04143+0515 SHN 7 distance=118' 04113+0531 ENG 18 distance=123' 04246+0634 SKF1689 distance=130' 04250+0719 GWP 583 distance=130' 04139+0916 BU 547AB distance=131' 04139+0916 BU 547AC distance=131' 04094+0546 LAW 12 distance=133' 04216+0523 A 1836 distance=133' 04085+0827 STF 497 distance=139' 04252+0803 LDS3584 distance=144' 04253+0804 WIS 106 distance=145' 04181+0446 TOB9003 distance=146' 04187+0445 A 1939 distance=149' 04170+0941 UC 1145 distance=152' 04057+0743 HDS 518 distance=161' 04123+0939 STT 74 distance=161' 04210+0935 LDS5542 distance=162' 04085+0909 SKF2785 distance=167' 04051+0703 DVG 20 distance=167' 04067+0541 STF 493 distance=168' 04230+0924 YSC 31AB distance=168' 04230+0924 GII 128Aa,Ab distance=168' 04159+0957 LDS5526 distance=168' 04250+0856 HEI 641 distance=168' 04049+0712 DVG 19 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 04163+0710 WSI 97 144 0.2
Show 04194+0710 FAL 8 23 7.2 46
Show 04141+0630 HEI 640 238 2.7 51
Show 04136+0743 A 1938 224 0.1 53
Show 04155+0611 STU 18 CE 150 62.6 57
Show 04155+0611 H 6 98 CD 314 55.7 57
Show 04200+0657 LDS3575 204 16.4 58
Show 04155+0611 AMM 2 BF 103 7.8 59
Show 04155+0611 AMM 2 BG 130 9.0 59
Show 04155+0611 STTA 45 AB 316 64.6 60
Show 04155+0611 H 6 98 AC 48 233.1 60
Show 04194+0623 HJ 675 AB 354 6.9 67
Show 04194+0623 HJ 675 AC 103 11.2 67
Show 04208+0628 HJ 2226 9.3 80
Show 04216+0658 A 1835 16 0.2 80
Show 04141+0555 KPP 108 218 4.0 82
Show 04212+0627 SLW 171 307 30.2 85
Show 04105+0719 GWP 560 226 102.5 87
Show 04220+0734 SKF1688 289 1.2 89
Show 04212+0614 A 1834 283 0.5 93
Show 04226+0711 GWP 579 37 48.6 94
Show 04145+0857 LDS3565 127 24.5 111
Show 04135+0853 BU 1278 AB 303 8.0 112
Show 04135+0853 BU 1278 AC 258 53.2 112
Show 04111+0832 YSC 28 229 0.9 114
Show 04241+0707 OSW 80 262 59.5 117
Show 04143+0515 SHN 7 145 0.4 118
Show 04113+0531 ENG 18 37 113.1 123
Show 04246+0634 SKF1689 296 1.6 130
Show 04250+0719 GWP 583 236 6.8 130
Show 04139+0916 BU 547 AB 339 1.3 131
Show 04139+0916 BU 547 AC 228 28.2 131
Show 04094+0546 LAW 12 130 0.2 133
Show 04216+0523 A 1836 197 1.4 133
Show 04085+0827 STF 497 219 11.1 139
Show 04252+0803 LDS3584 22 73.4 144
Show 04253+0804 WIS 106 317 999.9 145
Show 04181+0446 TOB9003 345 6.9 146
Show 04187+0445 A 1939 310 0.6 149
Show 04170+0941 UC 1145 59 15.1 152
Show 04057+0743 HDS 518 5 0.2 161
Show 04123+0939 STT 74 111 0.5 161
Show 04210+0935 LDS5542 343 29.9 162
Show 04085+0909 SKF2785 358 7.5 167
Show 04051+0703 DVG 20 156 22.4 167
Show 04067+0541 STF 493 84 1.3 168
Show 04230+0924 YSC 31 AB 108 0.5 168
Show 04230+0924 GII 128 Aa,Ab 129 0.1 168
Show 04159+0957 LDS5526 200 9.0 168
Show 04250+0856 HEI 641 275 2.8 168
Show 04049+0712 DVG 19 89 16.7 170

 
 
WDS 04163+0710 : COMPONENTS
 
 
  A
B pa=144.6°
sep=0.16"
 
 
04163+0710 A
 
 
Componente originario normalizzato AB Name HD 26990 Coord arcsec 2000 041616.55+070934.5 Mag 7.7
Spectral class G0 (yellow) PmRA -91.00 PmDE -43.0 SAO 111707
HIP 19911 Tycho2 0080-01377-1 HD 26990 GC 5156
BD BD+06 652
Tycho2
Tycho2 0080-01377-1 Pflag RAmdeg 64.06873574 DEmdeg 7.15944313
PmRA -85.6 PmDE -52.1 E RAmdeg 6 E DEmdeg 7
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.23 EpDEm 1991.10
Num 10 Q RAmdeg 1.3 Q DEmdeg 0.9 Q pmRA 1.4
Q pmDE 0.9 BTmag 8.277 E BTmag 0.017 VTmag 7.579
E VTmag 0.012 Prox 999 TYC T HIP 19911
CCDM RAdeg 64.06893500 DEdeg 7.15956472 EpRA 1990 1.66
EpDE 1990 1.62 E RAdeg 5.8 E DEdeg 6.5 Posflg
Corr -0.1
SAO
SAO 111707 DelFlag RA1950 PmRA1950 -0.0078
DE1950 PmDE1950 -0.058 Vmag 7.6 SpType G0
Double code Source 70 CatNum 5156 DM BD+06 652
DMcomp BDsup HD 26990 M HD 0
GC 5156 RA1950rad 1.10650143 DE1950rad 0.12281658 PmRA2000 -0.0076
PmDE2000 -0.06
Hipparcos
Catalog H HIP 19911 Proxy RAhms 04 16 16.55
DEdms +07 09 34.5 Vmag 7.5 VarFlag R Vmag H
RAdeg 64.0689 DEdeg 7.15957 AstroRef Plx 28.69
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 26990 BD BD+06 652
CD CP Dm number +06 652 VIred 0.72
SpType G0 R SpType Coord arcsec 2000 041616.55+070934.5
Hipparcos 2
HIP 19911 Sn 5 So 1 Nc 1
RArad 1.1182140937 DErad 0.1249580388 Plx 32.64 PmRA -63.71
PmDE -45.56 E RArad 2.3 E DErad 1.8 E Plx 2.65
E pmRA 2.7 E pmDE 2.1 Hpmag 7.6343 E Hpmag 0.0015
SHp 0.01 VA 0 BV 0.661 E BV 0.015
VI 0.72
 
 
04163+0710 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 041616.56+070934.4 Mag 9.7 Calc delta mag 2
Calc coord yes