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Current system
14312+7634
HJ 2738 AB
HD 128421


Nearby doubles
28' : 14248+7619
LDS1792

39' : 14232+7607
LDS1790

40' : 14411+7654
LDS1804

41' : 14198+7642
STF1849

45' : 14193+7651
MFL 140

49' : 14177+7648
STF1844

49' : 14193+7701
MLR 334

53' : 14196+7709
MFL 93

54' : 14275+7542
HJ 2733AB

56' : 14387+7723
UC 2808

56' : 14442+7707
HJ 2754

61' : 14372+7537
LDS1803

66' : 14125+7626
HU 900

73' : 14116+7701
KPP3916

75' : 14176+7538
LDS1786

92' : 14176+7753
UC 2724

104' : 14236+7815
LDS1791

108' : 14361+7821
MFL 150AB

111' : 14436+7816
TDS9288

117' : 14267+7830
MLR 335

130' : 14490+7830
MFL 184

134' : 14319+7847
LDS1799

146' : 14367+7410
LDS1802

146' : 14297+7409
LDS1794

148' : 14465+7853
BVD 324

152' : 14393+7903
TDS9261



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.

14312+7634 HJ 2738 AB (HD 128421)

 
 
14h 31m 10.41s +76° 33' 55.1" P.A. 265.00 sep 9.2 mag 8.32,10.56 Sp F0 dist. 127.39 pc (415.55 l.y.)
 
 
Coord 2000 14312+7634 Discov num HJ 2738 Comp AB Coord arcsec 2000 14 31 10.41 +76 33 55.1
Date first 1831 Date last 2016 Obs 21
Pa first 270 Pa last 264.5 P.A. Now (θ) 264.5°
Sep first 10.0 Sep last 9.206 Sep. Now (ρ) 9.206"
Mag pri 8.32 Mag sec 10.56 delta mag (ΔM) 2.24 Spectral class F0 (yellow-white)
Pri motion ra +014 Sec motion ra +014
Pri motion dec -001 Sec motion dec -003
Notes
rPM=0.14 (< 0.3, Physical double)
This double is physical.
 
 
14312+7634 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 128421 8043 14 31 10 +76 33 55 HJ 2738 AB 2016 21 265 9.2 8.32 10.56 2.24 <===
Show 14 31 08 +76 33 54 HJ 2738 BC 2015 8 210 7.5 10.56 13.20 2.64
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 128421 Constellation Ursa Minor SAO 8043 HIP 70985
Tycho2 4559-00368-1 Gaia DR2 1713787853429997824 HD 128421 BD BD+77 548
Distance 127.39 Distance ly 415.55
 
 
WDS 14312+7634 HJ 2738 AB (HD 128421) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14312+7634 HJ 2738 AB 1999 9 266 9.1 8.32 10.56 F0 D 143110.41+763355.1
14312+7634 HJ 2738 AB 2003 10 265 9.2 8.32 10.56 F0 D 143110.41+763355.1
14312+7634 HJ 2738 AB 2010 11 265 9.2 8.32 10.56 F0 D 143110.41+763355.1
14312+7634 HJ 2738 AB 2015 14 265 9.2 8.32 10.56 F0 143110.41+763355.1
14312+7634 HJ 2738 AB 2016 21 265 9.2 8.32 10.56 F0 143110.41+763355.1

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

 
 
WDS 14312+7634 HJ 2738 AB (HD 128421) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 14312+7634 HJ 2738 AB (HD 128421) : MEASURES
 
 
No records found.

 
 
WDS 14312+7634 (HD 128421) : VIRTUAL EYEPIECE
 
 

14312+7634 HJ 2738A mag 8.32 Sp F0 14312+7634 HJ 2738B sep 9.1 P.A. 263.00 mag 10.56 14312+7634 HJ 2738C sep 12.4 P.A. 232.70 mag 13.2 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 14312+7634 (HD 128421) : ALADIN DSS IMAGE @ 14h 31m 10.41s +76° 33' 55.1"
 
 
 
 
WDS 14312+7634 HJ 2738 AB (HD 128421) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

14312+7634 HJ 2738AB distance=0' 14312+7634 HJ 2738BC distance=1' 14248+7619 LDS1792 distance=28' 14232+7607 LDS1790 distance=39' 14411+7654 LDS1804 distance=40' 14198+7642 STF1849 distance=41' 14193+7651 MFL 140 distance=45' 14177+7648 STF1844 distance=49' 14193+7701 MLR 334 distance=49' 14196+7709 MFL 93 distance=53' 14275+7542 HJ 2733AB distance=54' 14275+7542 HJ 2733AC distance=54' 14387+7723 UC 2808 distance=56' 14442+7707 HJ 2754 distance=56' 14372+7537 LDS1803 distance=61' 14125+7626 HU 900 distance=66' 14116+7701 KPP3916 distance=73' 14176+7538 LDS1786 distance=75' 14176+7753 UC 2724 distance=92' 14236+7815 LDS1791 distance=104' 14361+7821 MFL 150AB distance=108' 14436+7816 TDS9288 distance=111' 14267+7830 MLR 335 distance=117' 14490+7830 MFL 184 distance=130' 14319+7847 LDS1799 distance=134' 14367+7410 LDS1802 distance=146' 14297+7409 LDS1794 distance=146' 14465+7853 BVD 324 distance=148' 14393+7903 TDS9261 distance=152' 14253+7909 LDS1793 distance=156' 14298+7355 SKF1233 distance=160' 14507+7409 BUP 159 (Kochab) distance=163' 14306+7919 LDS1798 distance=166' 14278+7921 MFL 189 distance=168' 14196+7917 LDS1789 distance=168' 14316+7342 LDS1797 distance=172' 14174+7344 PKO 27 distance=178' 14167+7933 LDS1787BC distance=185' 14167+7933 UC 2721AB distance=187' 14167+7936 BVD 106 distance=188' 14332+7947 STF1880 distance=193' 14172+7952 STF1851 distance=203' 14340+7957 LDS1801 distance=204' 14189+7314 OSO 55AB distance=206' 14189+7314 OSO 55AC distance=206' 14285+7303 STF1859 distance=211' 14155+8000 MFL 76 distance=212' 14399+7252 TDS9264 distance=225' 14323+8020 STTA130 distance=227' 14235+7242 KPP3280 distance=234' 14403+8050 MFL 158 distance=258' 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 14312+7634 HJ 2738 AB 265 9.2
Show 14312+7634 HJ 2738 BC 210 7.5 1
Show 14248+7619 LDS1792 218 8.4 28
Show 14232+7607 LDS1790 164 131.7 39
Show 14411+7654 LDS1804 303 4.0 40
Show 14198+7642 STF1849 10 0.9 41
Show 14193+7651 MFL 140 329 6.3 45
Show 14177+7648 STF1844 209 1.9 49
Show 14193+7701 MLR 334 225 0.2 49
Show 14196+7709 MFL 93 236 38.2 53
Show 14275+7542 HJ 2733 AB 128 25.0 54
Show 14275+7542 HJ 2733 AC 133 60.3 54
Show 14387+7723 UC 2808 314 29.4 56
Show 14442+7707 HJ 2754 253 8.0 56
Show 14372+7537 LDS1803 137 18.1 61
Show 14125+7626 HU 900 223 0.6 66
Show 14116+7701 KPP3916 334 2.6 73
Show 14176+7538 LDS1786 278 84.7 75
Show 14176+7753 UC 2724 251 42.6 92
Show 14236+7815 LDS1791 107 114.8 104
Show 14361+7821 MFL 150 AB 48 11.0 108
Show 14436+7816 TDS9288 236 0.5 111
Show 14267+7830 MLR 335 85 1.9 117
Show 14490+7830 MFL 184 244 14.0 130
Show 14319+7847 LDS1799 125 30.5 134
Show 14367+7410 LDS1802 53 8.9 146
Show 14297+7409 LDS1794 49 5.0 146
Show 14465+7853 BVD 324 28 18.2 148
Show 14393+7903 TDS9261 288 0.7 152
Show 14253+7909 LDS1793 323 10.0 156
Show 14298+7355 SKF1233 331 48.7 160
Show Kochab 14507+7409 BUP 159 341 212.3 163
Show 14306+7919 LDS1798 180 3.8 166
Show 14278+7921 MFL 189 321 5.7 168
Show 14196+7917 LDS1789 305 1.7 168
Show 14316+7342 LDS1797 197 23.0 172
Show 14174+7344 PKO 27 57 6.9 178
Show 14167+7933 LDS1787 BC 109 2.7 185
Show 14167+7933 UC 2721 AB 132 121.8 187
Show 14167+7936 BVD 106 344 24.4 188
Show 14332+7947 STF1880 253 26.1 193
Show 14172+7952 STF1851 329 10.5 203
Show 14340+7957 LDS1801 150 16.5 204
Show 14189+7314 OSO 55 AB 180 12.6 206
Show 14189+7314 OSO 55 AC 206 17.7 206
Show 14285+7303 STF1859 233 19.8 211
Show 14155+8000 MFL 76 18 33.9 212
Show 14399+7252 TDS9264 236 0.5 225
Show 14323+8020 STTA130 297 51.4 227
Show 14235+7242 KPP3280 342 1.0 234
Show 14403+8050 MFL 158 171 17.0 258

 
 
WDS 14312+7634 : COMPONENTS
 
 
  A B
B pa=263.0°
sep=9.06"
 
C pa=232.7°
sep=12.41"
pa=187.8°
sep=6.49"
 
 
14312+7634 A
 
 
Name HD 128421 Coord arcsec 2000 143110.41+763355.1 Mag 8.32 Spectral class F0 (yellow-white)
PmRA 14.00 PmDE -1.0 SAO 8043 HIP 70985
Tycho2 4559-00368-1 HD 128421 BD BD+77 548
Tycho2
Tycho2 4559-00368-1 Pflag RAmdeg 217.79349505 DEmdeg 76.56529330
PmRA 12.5 PmDE -2.1 E RAmdeg 6 E DEmdeg 6
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.28 EpDEm 1991.30
Num 8 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.8 BTmag 8.669 E BTmag 0.016 VTmag 8.320
E VTmag 0.012 Prox 91 TYC T HIP 70985
CCDM A RAdeg 217.79336944 DEdeg 76.56529806 EpRA 1990 1.63
EpDE 1990 1.63 E RAdeg 5.6 E DEdeg 5.8 Posflg
Corr 0.0
SAO
SAO 8043 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 -0.017 Vmag 8.3 SpType F0
Double code Source 1 CatNum 562 DM BD+77 548
DMcomp BDsup HD 128421 M HD 0
GC RA1950rad 3.8025915 DE1950rad 1.34015086 PmRA2000 0.0025
PmDE2000 -0.014
Hipparcos
Catalog H HIP 70985 Proxy H RAhms 14 31 10.41
DEdms +76 33 55.1 Vmag 8.16 VarFlag R Vmag H
RAdeg 217.793 DEdeg 76.5653 AstroRef A Plx 7.22
CCDM 14312+7634 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 265 Rho 9.189 HD 128421 BD BD+77 548
CD CP Dm number +77 548 VIred 0.34
SpType F0 R SpType Coord arcsec 2000 143110.41+763355.1
Hipparcos 2
HIP 70985 Sn 15 So 3 Nc 2
RArad 3.8012111879 DErad 1.3363165965 Plx 7.85 PmRA 13.88
PmDE -3.03 E RArad 0.57 E DErad 0.64 E Plx 0.67
E pmRA 0.56 E pmDE 0.71 Hpmag 8.2498 E Hpmag 0.0019
SHp 0.021 VA 0 BV 0.352 E BV 0.017
VI 0.41
CCDM
Ccdm 14312+7634 RComp Comp A Note1
Note2 Discov num DRAs -1.39 DDEs -4.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp F0 PmNote *
PmRA 21 PmDE 6 Dm number +77 548 Cat1 BD
Name2 +76 562 Cat2 AGK2/3 HD 128421 M HD
ADS BDS A 9310 M ADS BDS N IDS IDS 14319N7700A
HIC 70985
 
 
14312+7634 B
 
 
Coord arcsec 2000 143107.83+763354.0 Coord calc 143107.83+763354.0 Mag 10.56 PmRA 14.00
PmDE -3.0 Tycho2 4559-03018-1 Calc delta mag 2.24
Tycho2
Tycho2 4559-03018-1 Pflag RAmdeg 217.78264485 DEmdeg 76.56502657
PmRA 14.9 PmDE -3.6 E RAmdeg 34 E DEmdeg 35
E pmRA 1.9 E pmDE 2.0 EpRAm 1987.85 EpDEm 1988.11
Num 3 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.8 BTmag 11.113 E BTmag 0.059 VTmag 10.560
E VTmag 0.051 Prox 91 TYC T HIP 70985
CCDM B RAdeg 217.78249528 DEdeg 76.56503500 EpRA 1990 1.59
EpDE 1990 1.57 E RAdeg 35.2 E DEdeg 35.5 Posflg
Corr 0.1
CCDM
Ccdm 14312+7634 RComp Comp B Note1
Note2 Discov num HJ 2738 DRAs DDEs
R dRAs Year 1912 Theta 266 Rho 9.3
Obs 1 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9310 M ADS BDS N IDS IDS 14319N7700B
HIC 70985
 
 
14312+7634 C
 
 
Coord arcsec 2000 143107.58+763347.6 Mag 13.2 Calc delta mag 4.88 Calc coord yes