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Doubles in session


Current system
17246+3913
S 689 AB
HD 157946


Nearby doubles
39' : 17240+3835
HU 1179

42' : 17275+3847
ES 2014

55' : 17282+3949
ALP 22AB

57' : 17292+3933
UC 230

57' : 17217+3958
MCA 47

59' : 17290+3845
COU1297

62' : 17207+3832
ALI 866

68' : 17298+3842
UC 231

71' : 17203+4001
GRV1228

71' : 17247+3802
COU1142AB

76' : 17205+3815
WSP 27
Franz

78' : 17297+4004
CBL 69

83' : 17179+3848
LDS4737

86' : 17222+3753
TDT 321

87' : 17229+3748
WIS 318

93' : 17293+3758
HO 417

102' : 17302+3755
TDT 385

106' : 17333+3842
KPP3318

108' : 17246+4100
VKI 31

111' : 17194+4044
CVR1698

113' : 17324+4022
UC 3364

114' : 17158+3829
HEI 14AB

114' : 17244+4106
TDT 339

114' : 17344+3903
FUR 2

116' : 17345+3927
KPP4045

117' : 17345+3935
COU1298



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.

17246+3913 S 689 AB (HD 157946)

 
 
17h 24m 38.83s +39° 12' 34.2" P.A. 197.00 sep 89.2 mag 7.48,8.44 Sp K5 dist. 108.58 pc (354.19 l.y.)
 
 
Coord 2000 17246+3913 Discov num S   689 Comp AB Coord arcsec 2000 17 24 38.83 +39 12 34.2
Date first 1825 Date last 2017 Obs 23
Pa first 198 Pa last 197 P.A. Now (θ) 197°
Sep first 89.6 Sep last 89.2 Sep. Now (ρ) 89.2"
Mag pri 7.48 Mag sec 8.44 delta mag (ΔM) 0.96 Spectral class K5 (yellow-orange)
Pri motion ra -019 Sec motion ra -012
Pri motion dec +020 Sec motion dec +016
Notes N Y (See Notes, Parallax indicates components are non-physical)
rPM=0.292 (< 0.3, Physical double)
This double is not physical.
 
 
17246+3913 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 66021 17 24 39 +39 12 34 WSI 2 Aa,Ab 2012 4 74 0.4 8.00
Show HD 157946 66021 17 24 39 +39 12 34 S 689 AB 2017 23 197 89.2 7.48 8.44 0.96 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 157946 Constellation Hercules SAO 66021 HIP 85194
Tycho2 3086-00235-1 Gaia DR2 1346651231469806080 HD 157946 BD BD+39 3124
Distance 108.58 Distance ly 354.19
 
 
WDS 17246+3913 S 689 AB (HD 157946) : NOTES
 
 
discov_num notes refcode
WSI 2 Aa,Ab: Hipparcos suspected non-single.
S 689 STTA153.
AB: B is BD+39@3124.
 
 
REFERENCES
 
 
refcode metd author reference
S__1826 Ma - South, J. 1826RSPT..116....1S
S__1826 Phil. Trans. R. Soc., 116, Pt.1, 1826
S__1844A Ma - South, J. 1844QB43.S66.......
S__1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
S__1852A Ma - South, J. .
S__1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
S__1880A Ma - South, J. 1880MNRAS..40..497B
S__1880A cited by Burnham (MNRAS 40, 497, 1880)
S__1906A Ma - South, J. 1906MmRAS..56....1L
S__1906A cited by Lewis (MemRAS 56, 1, 1906)
S__1906B Ma - South, J. 1906QB821.B972.....
S__1906B cited in BDS (Burnham Double Star Cat., 1906)
S__1913A Ma - South, J. 1913QB811.B8.......
S__1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
S__1922A Ma - South, J. 1922AN....216...49R
S__1922A cited by Rabe (AN 216, 49, 1922)
WSI (Washington Speckle Interferometer)
WSI1997 Su j Douglass, G.G., Hindsley, R.B., & Worley, C.E. 1997ApJS..111..289D
WSI1997 +Ma ApJS 111, 289, 1997
WSI1999a Su j Germain, M.E., Douglass, G.G., & Worley, C.E. 1999AJ....117.1905G
WSI1999a AJ 117, 1905, 1999
WSI1999b Su j Germain, M.E., Douglass, G.G., & Worley, C.E. 1999AJ....117.2511G
WSI1999b AJ 117, 2511, 1999
WSI1999c Su j Douglass, G.G., Mason, B.D., Germain, M.E., & Worley, C.E. 1999AJ....118.1395D
WSI1999c AJ 118, 1395, 1999
WSI2000a Su j Douglass, G.G., Mason, B.D., Rafferty, T.J., Holdenried, E.R., & Germain, M.E. 2000AJ....119.3071M
WSI2000a AJ 119, 3071, 2000
WSI2000b Su j Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L., 2000AJ....120.1120M
WSI2000b Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
WSI2000b AJ 120, 1120, 2000
WSI2001a Su j Germain, M.E. & Douglass, G.G. 2001AJ....121.2239M
WSI2001a AJ 121, 2239, 2001
WSI2001b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I., 2001AJ....122.1586M
WSI2001b Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
WSI2001b AJ 122, 1586, 2001
WSI2002 Su j Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M., 2002AJ....124.2254M
WSI2002 Hennessy, G.S., Platais, I., et al.
WSI2002 AJ 124, 2254, 2002
WSI2004a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M., 2004AJ....127..539M
WSI2004a +orb Hennessy, G.S., Rafferty, T.J., et al.
WSI2004a AJ 127, 539, 2004
WSI2004b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Rafferty, T.J., Urban, S., & Flagg, L. 2004AJ....128.3012M
WSI2004b +orb AJ 128, 3012, 2004
WSI2006a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Rafferty, T.J. 2006AJ....131.2687M
WSI2006a AJ 131, 2687, 2006
WSI2006b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Holdenried, E.R. 2006AJ....132.2219M
WSI2006b +orb AJ 132, 2219, 2006
WSI2007a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Wieder, G. 2007AJ....134.1671M
WSI2007a +Cu AJ 134, 1671, 2007
WSI2008 Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2008AJ....136.2223M
WSI2008 AJ 136, 2223, 2008
WSI2010 Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2010AJ....140..480M
WSI2010 AJ 140, 480, 2010
WSI2011 Su j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2011AJ....141..157M
WSI2011 AJ 141, 157, 2011
WSI2011b Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2011AJ....142...46M
WSI2011b AJ 142, 46, 2011
WSI2012 Cu j Mason, B.D., Hartkopf, W.I., & Friedman, E.A. 2012AJ....143..124M
WSI2012 +lin AJ 143, 124, 2012
WSI2013 Cu j Mason, B.D., Hartkopf, W.I., & Hurowitz, H.M. 2013AJ....146...56M
WSI2013 +orb AJ 146, 56, 2013
WSI2013 +lin
WSI2013b Cu j Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. 2013AJ....146...76H
WSI2013b +Su AJ 146, 76, 2013 (speckle measures in UCAC doubles paper UC_2013b)
WSI2015 Cu j Hartkopf, W.I. & Mason, B.D. 2015AJ....150..130H
WSI2015 +orb AJ 150, 136, 2015
WSI2015 +lin
WSI2017a Cu j Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian, 2017AJ....153...20M
WSI2017a C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
WSI2017a AJ 153, 20, 2017
WSI2017b Su j Mason, B.D. & Hartkopf, W.I. 2017AJ....154..183M
WSI2017b +Cu AJ 154, 183, 2017
WSI2017b +E+
WSI2017b +H+
WSI2017b +Pa
WSI2017b +Zc
WSI2018a Su j Mason, B.D., Hartkopf, W.I., Urban, S.E. & Josties, J.D. 2018AJ....156..240M
WSI2018a +Cu AJ 156, 240, 2018
WSI2018a +E
WSI2021 Su j Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice, 2021AJ....162...53M
WSI2021 +Cu M., Kilian, C.M. & Warner, R.
WSI2021 AJ 162, 53, 2021
WSI2025 Su j Mason, B.D., et al. ...................
WSI2025 in preparation
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17246+3913 S 689 AB 2003 20 197 89.9 7.48 8.44 K5 NYD 172438.83+391234.2
17246+3913 S 689 AB 2015 22 198 91.2 7.48 8.44 K5 NY 172438.83+391234.2
17246+3913 S 689 AB 2017 23 197 89.2 7.48 8.44 K5 NY 172438.83+391234.2

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

 
 
WDS 17246+3913 S 689 AB (HD 157946) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/06/30 Daedalus1 mean difficulty separated 197   Very wide pair. Primary is brighter and yellow. Companion is white. Not interesting at all, just sort of next to each other.

 
 
WDS 17246+3913 S 689 AB (HD 157946) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/06/30 Daedalus1 mean difficulty 90.50 0.14 197.00 0.00 1.08 12 Seeing: Pickering 9, excellent
 
 
WDS 17246+3913 (HD 157946) : VIRTUAL EYEPIECE
 
 

17246+3913 S 689A mag 7.48 Sp K5 17246+3913 WSI 2Ab sep 0.3 P.A. 69.10 17246+3913 S 689B sep 87.7 P.A. 193.30 mag 8.44 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 17246+3913 (HD 157946) : ALADIN DSS IMAGE @ 17h 24m 38.83s +39° 12' 34.2"
 
 
 
 
WDS 17246+3913 S 689 AB (HD 157946) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17246+3913 S 689AB distance=0' 17240+3835 HU 1179 distance=39' 17275+3847 ES 2014 distance=42' 17282+3949 BOY 10Aa,Ab distance=55' 17282+3949 ALP 22AB distance=55' 17292+3933 UC 230 distance=57' 17217+3958 MCA 47 distance=57' 17290+3845 COU1297 distance=59' 17207+3832 ALI 866 distance=62' 17298+3842 UC 231 distance=68' 17203+4001 GRV1228 distance=71' 17247+3802 HSL 1Aa,Ab distance=71' 17247+3802 HSL 1Aa,Ac distance=71' 17247+3802 COU1142AB distance=71' 17205+3815 WSP 27 (Franz) distance=76' 17297+4004 CBL 69 distance=78' 17179+3848 LDS4737 distance=83' 17222+3753 TDT 321 distance=86' 17229+3748 WIS 318 distance=87' 17293+3758 HO 417 distance=93' 17302+3755 TDT 385 distance=102' 17333+3842 KPP3318 distance=106' 17246+4100 VKI 31 distance=108' 17194+4044 CVR1698 distance=111' 17324+4022 UC 3364 distance=113' 17158+3829 HEI 14AB distance=114' 17158+3829 SOO 1AC distance=114' 17244+4106 TDT 339 distance=114' 17344+3903 FUR 2 distance=114' 17345+3927 KPP4045 distance=116' 17345+3935 COU1298 distance=117' 17171+4034 COU1295 distance=119' 17340+3823 RAO 376 distance=121' 17158+4016 COU1294 distance=121' 17229+4113 UC 229 distance=122' 17252+3711 GUI 17 distance=123' 17167+3752 PTT 17 distance=123' 17237+3709 MCA 48Aa,Ab distance=125' 17237+3709 STF2161AB distance=125' 17237+3709 STF2161AC distance=125' 17145+3833 MLB 850 distance=126' 17355+3932 ES 2015 distance=128' 17333+4037 LDS4753AB distance=131' 17333+4037 NSN 693AC distance=131' 17353+3831 RAO 378 distance=131' 17245+3657 STT 329 distance=136' 17177+3717 HDS2446 distance=142' 17197+3703 COU 994 distance=143' 17285+3657 COU1143 distance=143' 17224+3646 J 1131 distance=150' 17121+3946 WIS 312 distance=150' 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 17246+3913 WSI 2 Aa,Ab 74 0.4
Show 17246+3913 S 689 AB 197 89.2
Show 17240+3835 HU 1179 272 0.3 39
Show 17275+3847 ES 2014 93 1.7 42
Show 17282+3949 BOY 10 Aa,Ab 134 0.2 55
Show 17282+3949 ALP 22 AB 351 36.1 55
Show 17292+3933 UC 230 115 35.0 57
Show 17217+3958 MCA 47 45 0.0 57
Show 17290+3845 COU1297 99 0.3 59
Show 17207+3832 ALI 866 133 11.6 62
Show 17298+3842 UC 231 168 15.8 68
Show 17203+4001 GRV1228 196 13.2 71
Show 17247+3802 HSL 1 Aa,Ab 226 0.0 71
Show 17247+3802 HSL 1 Aa,Ac 57 0.3 71
Show 17247+3802 COU1142 AB 222 1.8 71
Show Franz 17205+3815 WSP 27 264 0.9 76
Show 17297+4004 CBL 69 244 12.6 78
Show 17179+3848 LDS4737 172 19.3 83
Show 17222+3753 TDT 321 334 2.6 86
Show 17229+3748 WIS 318 141 565.9 87
Show 17293+3758 HO 417 306 0.3 93
Show 17302+3755 TDT 385 288 0.5 102
Show 17333+3842 KPP3318 118 1.2 106
Show 17246+4100 VKI 31 85 5.1 108
Show 17194+4044 CVR1698 141 3.8 111
Show 17324+4022 UC 3364 317 26.9 113
Show 17158+3829 HEI 14 AB 311 7.4 114
Show 17158+3829 SOO 1 AC 355 4.9 114
Show 17244+4106 TDT 339 142 0.5 114
Show 17344+3903 FUR 2 51 2.1 114
Show 17345+3927 KPP4045 72 2.2 116
Show 17345+3935 COU1298 249 0.3 117
Show 17171+4034 COU1295 59 0.3 119
Show 17340+3823 RAO 376 244 0.4 121
Show 17158+4016 COU1294 84 1.0 121
Show 17229+4113 UC 229 165 44.7 122
Show 17252+3711 GUI 17 345 76.1 123
Show 17167+3752 PTT 17 189 10.3 123
Show 17237+3709 MCA 48 Aa,Ab 23 0.3 125
Show 17237+3709 STF2161 AB 321 4.0 125
Show 17237+3709 STF2161 AC 221 118.4 125
Show 17145+3833 MLB 850 187 5.6 126
Show 17355+3932 ES 2015 32 4.8 128
Show 17333+4037 LDS4753 AB 75 3.0 131
Show 17333+4037 NSN 693 AC 351 48.3 131
Show 17353+3831 RAO 378 34 0.4 131
Show 17245+3657 STT 329 12 33.0 136
Show 17177+3717 HDS2446 143 0.9 142
Show 17197+3703 COU 994 214 0.5 143
Show 17285+3657 COU1143 244 0.4 143
Show 17224+3646 J 1131 257 1.7 150

 
 
WDS 17246+3913 : COMPONENTS
 
 
  A Ab
Ab pa=69.1°
sep=0.29"
 
B pa=193.3°
sep=87.66"
pa=193.5°
sep=87.83"
 
 
17246+3913 A
 
 
Name HD 157946 Coord arcsec 2000 172438.83+391234.2 Mag 7.48 Spectral class K5 (yellow-orange)
PmRA -19.00 PmDE 20.0 SAO 66021 HIP 85201
Tycho2 3086-00235-1 HD 157946 BD BD+39 3125
Tycho2
Tycho2 3086-00235-1 Pflag RAmdeg 261.16173898 DEmdeg 39.20955411
PmRA -18.1 PmDE 20.6 E RAmdeg 5 E DEmdeg 5
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.25 EpDEm 1991.32
Num 12 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.0 BTmag 8.994 E BTmag 0.017 VTmag 7.477
E VTmag 0.011 Prox 897 TYC T HIP 85201
CCDM RAdeg 261.16179278 DEdeg 39.20950667 EpRA 1990 1.69
EpDE 1990 1.68 E RAdeg 5.0 E DEdeg 5.0 Posflg
Corr 0.1
SAO
SAO 66021 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 0.013 Vmag 7.6 SpType K5
Double code Source 5 CatNum 1679 DM BD+39 3125
DMcomp BDsup HD 157946 M HD 0
GC RA1950rad 4.5508727 DE1950rad 0.68509482 PmRA2000 -0.0004
PmDE2000 0.014
Hipparcos
Catalog H HIP 85201 Proxy RAhms 17 24 38.83
DEdms +39 12 34.2 Vmag 7.35 VarFlag R Vmag H
RAdeg 261.162 DEdeg 39.2095 AstroRef Plx 3.78
CCDM 17246+3912 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 157946 BD BD+39 3125
CD CP Dm number +39 3125 VIred 1.23
SpType K5 R SpType Coord arcsec 2000 172438.83+391234.2
Hipparcos 2
HIP 85201 Sn 5 So 0 Nc 1
RArad 4.5581331902 DErad 0.6843349521 Plx 3.79 PmRA -18.91
PmDE 20.29 E RArad 0.39 E DErad 0.46 E Plx 0.51
E pmRA 0.38 E pmDE 0.58 Hpmag 7.5044 E Hpmag 0.0013
SHp 0.01 VA 0 BV 1.274 E BV 0.011
VI 1.23
 
 
17246+3913 Ab
 
 
Coord arcsec 2000 172438.85+391234.3 Calc delta mag 8 Calc coord yes
 
 
17246+3913 B
 
 
Coord arcsec 2000 172437.09+391108.9 Mag 8.44 PmRA -12.00 PmDE 16.0
SAO 66020 HIP 85194 Tycho2 3086-00109-1 HD 157947
BD BD+39 3124 Calc delta mag 0.44 Calc coord yes
Tycho2
Tycho2 3086-00109-1 Pflag RAmdeg 261.15259158 DEmdeg 39.18566130
PmRA -13.7 PmDE 16.5 E RAmdeg 6 E DEmdeg 7
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.34 EpDEm 1991.22
Num 7 Q RAmdeg 0.7 Q DEmdeg 0.3 Q pmRA 0.7
Q pmDE 0.4 BTmag 8.894 E BTmag 0.016 VTmag 8.443
E VTmag 0.013 Prox 897 TYC T HIP 85194
CCDM RAdeg 261.15263250 DEdeg 39.18562333 EpRA 1990 1.70
EpDE 1990 1.70 E RAdeg 6.4 E DEdeg 6.6 Posflg
Corr 0.1
SAO
SAO 66020 DelFlag RA1950 PmRA1950 -0.0012
DE1950 PmDE1950 0.008 Vmag 8.2 SpType G
Double code Source 5 CatNum 1678 DM BD+39 3124
DMcomp BDsup HD 157947 M HD 0
GC RA1950rad 4.55070634 DE1950rad 0.68467887 PmRA2000 -0.0008
PmDE2000 0.009
Hipparcos
Catalog H HIP 85194 Proxy RAhms 17 24 36.63
DEdms +39 11 08.2 Vmag 8.42 VarFlag R Vmag G
RAdeg 261.153 DEdeg 39.1856 AstroRef Plx 9.58
CCDM 17246+3912 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 157947 BD BD+39 3124
CD CP Dm number +39 3124 VIred 0.47
SpType G R SpType Coord arcsec 2000 172436.63+391108.2
Hipparcos 2
HIP 85194 Sn 5 So 0 Nc 1
RArad 4.5579733363 DErad 0.6839181741 Plx 9.21 PmRA -12.99
PmDE 17.68 E RArad 0.47 E DErad 0.62 E Plx 0.65
E pmRA 0.5 E pmDE 0.74 Hpmag 8.5 E Hpmag 0.002
SHp 0.017 VA 0 BV 0.4 E BV 0.015
VI 0.47