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Current system
12550+5810
STF 1691 AB
HD 112311


Nearby doubles
11' : 12546+5819
WIS 207

27' : 12581+5758
LDS1350

30' : 12569+5744
MLR 500AB

31' : 12584+5822
HJ 2628

33' : 12579+5834
UC 2440

42' : 12511+5838
STI 750

50' : 13004+5746
UC 2449

52' : 12599+5736
STI2292

64' : 12556+5706
MLR 553

65' : 12583+5909
OSW 12

68' : 12500+5903
LDS1337

68' : 12467+5824
UC 2405

70' : 13006+5904
FAR 15

71' : 12584+5705
A 1604

88' : 12555+5937
HDS1812

89' : 12445+5841
LDS1335

95' : 12435+5838
KPP2553

95' : 13020+5654
HJ 2631

95' : 12483+5653
LDS2660

98' : 12449+5718
LDS1336

99' : 12436+5852
STT 254

104' : 12487+5640
TDS8534

113' : 13084+5850
LDS2666

114' : 12510+5959
HU 1140

115' : 13061+5925
SLN 76

118' : 13007+5622
BU 1082



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12550+5810 STF 1691 AB (HD 112311)

 
 
12h 54m 59.60s +58° 09' 37.6" P.A. 275.00 sep 18.5 mag 8.58,9.80 Sp F0IV dist. 24.2 pc (78.94 l.y.)
 
 
Coord 2000 12550+5810 Discov num STF1691 Comp AB Coord arcsec 2000 12 54 59.60 +58 09 37.6
Date first 1830 Date last 2017 Obs 31
Pa first 277 Pa last 274.7 P.A. Now (θ) 274.7°
Sep first 20.7 Sep last 18.54 Sep. Now (ρ) 18.54"
Mag pri 8.58 Mag sec 9.80 delta mag (ΔM) 1.22 Spectral class F0IV (yellow-white)
Pri motion ra -005 Sec motion ra -005
Pri motion dec -057 Sec motion dec -059
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.034 (< 0.3, Physical double)
This double is physical.
 
 
12550+5810 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 112311 28561 12 54 60 +58 09 38 STF 1691 AB 2017 31 275 18.5 8.58 9.80 1.22 <===
Show 28561 12 54 60 +58 09 38 STF 1691 AC 2015 18 84 130.3 8.58 9.61 1.03
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 112311 Constellation Ursa Major SAO 28561 HIP 63028
Tycho2 3848-00075-1 Gaia DR2 1577303099958895360 HD 112311 GC 17538
BD BD+58 1402 Distance 24.2 Distance ly 78.94
 
 
WDS 12550+5810 STF 1691 AB (HD 112311) : NOTES
 
 
discov_num notes refcode
STF1691 AB: HJL 176. HJL1986
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
 
 
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
12550+5810 STF1691 AB 2004 20 275 18.8 8.58 9.80 F0IV DV 125459.60+580937.6
12550+5810 STF1691 AB 2015 22 275 18.6 8.58 9.80 F0IV NV 125459.60+580937.6
12550+5810 STF1691 AB 2017 24 276 18.7 8.58 9.80 F0IV NV 125459.60+580937.6

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

 
 
WDS 12550+5810 STF 1691 AB (HD 112311) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12550+5810 STF 1691 AB (HD 112311) : MEASURES
 
 
No records found.

 
 
WDS 12550+5810 (HD 112311) : VIRTUAL EYEPIECE
 
 

12550+5810 STF1691A mag 8.58 Sp F0IV 12550+5810 STF1691B sep 9.9 P.A. 278.90 mag 9.8 12550+5810 STF1691C sep 69.8 P.A. 78.40 mag 9.61 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 12550+5810 (HD 112311) : ALADIN DSS IMAGE @ 12h 54m 59.60s +58° 09' 37.6"
 
 
 
 
WDS 12550+5810 STF 1691 AB (HD 112311) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12550+5810 STF1691AB distance=1' 12550+5810 STF1691AC distance=1' 12546+5819 WIS 207 distance=11' 12581+5758 LDS1350 distance=27' 12569+5744 MLR 500AB distance=30' 12569+5744 MLR 500AC distance=30' 12584+5822 HJ 2628 distance=31' 12579+5834 UC 2440 distance=33' 12511+5838 STI 750 distance=42' 13004+5746 UC 2449 distance=50' 12599+5736 STI2292 distance=52' 12556+5706 MLR 553 distance=64' 12583+5909 OSW 12 distance=65' 12500+5903 LDS1337 distance=68' 12467+5824 UC 2405 distance=68' 13006+5904 FAR 15 distance=70' 12584+5705 A 1604 distance=71' 12555+5937 HDS1812 distance=88' 12445+5841 LDS1335 distance=89' 12435+5838 KPP2553 distance=95' 13020+5654 HJ 2631 distance=95' 12483+5653 LDS2660 distance=95' 12449+5718 LDS1336 distance=98' 12436+5852 STT 254 distance=99' 12487+5640 TDS8534 distance=104' 13084+5850 LDS2666 distance=113' 12510+5959 HU 1140 distance=114' 13061+5925 SLN 76 distance=115' 13007+5622 BU 1082 distance=118' 12556+5613 LDS1343BC distance=118' 12556+5613 DAM 711AB distance=118' 12578+6006 LDS1349 distance=119' 13026+5625 KR 41 distance=122' 12397+5855 SLW 752 distance=128' 12506+6015 TDS8550 distance=131' 12385+5755 STI2289 distance=133' 13110+5732 LDS2668 distance=133' 12540+5558 BLM 2 (Alioth) distance=133' 12418+5645 BWL 33AB distance=136' 12418+5645 BWL 33AC distance=136' 12418+5645 BWL 33AD distance=136' 13114+5856 CBL 413 distance=137' 13042+5615 MLR 554 distance=137' 12487+6019 YSC 46Aa,Ab distance=139' 12487+6019 MET 61AB distance=139' 12487+6019 SHY 66AC distance=139' 12487+6019 SHY 66AD distance=139' 13126+5827 STF1732AB distance=141' 13126+5827 BU 1434BC distance=141' 12436+6001 LAF 48AB distance=142' 12436+6001 LAF 48AC distance=142' 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 12550+5810 STF1691 AB 275 18.5 1
Show 12550+5810 STF1691 AC 84 130.3 1
Show 12546+5819 WIS 207 120 999.9 11
Show 12581+5758 LDS1350 182 2.8 27
Show 12569+5744 MLR 500 AB 254 0.1 30
Show 12569+5744 MLR 500 AC 272 9.6 30
Show 12584+5822 HJ 2628 26 31.1 31
Show 12579+5834 UC 2440 72 56.1 33
Show 12511+5838 STI 750 142 3.4 42
Show 13004+5746 UC 2449 142 10.9 50
Show 12599+5736 STI2292 72 12.9 52
Show 12556+5706 MLR 553 188 0.5 64
Show 12583+5909 OSW 12 357 25.3 65
Show 12500+5903 LDS1337 80 12.7 68
Show 12467+5824 UC 2405 155 68.1 68
Show 13006+5904 FAR 15 237 16.1 70
Show 12584+5705 A 1604 328 2.6 71
Show 12555+5937 HDS1812 304 5.3 88
Show 12445+5841 LDS1335 7 34.9 89
Show 12435+5838 KPP2553 1 23.1 95
Show 13020+5654 HJ 2631 253 34.4 95
Show 12483+5653 LDS2660 129 83.3 95
Show 12449+5718 LDS1336 10 236.1 98
Show 12436+5852 STT 254 189 0.3 99
Show 12487+5640 TDS8534 271 2.6 104
Show 13084+5850 LDS2666 29 174.5 113
Show 12510+5959 HU 1140 261 0.6 114
Show 13061+5925 SLN 76 15 63.1 115
Show 13007+5622 BU 1082 141 0.7 118
Show 12556+5613 LDS1343 BC 207 5.9 118
Show 12556+5613 DAM 711 AB 47 60.3 118
Show 12578+6006 LDS1349 298 103.7 119
Show 13026+5625 KR 41 333 3.5 122
Show 12397+5855 SLW 752 359 112.8 128
Show 12506+6015 TDS8550 357 0.9 131
Show 12385+5755 STI2289 286 10.8 133
Show 13110+5732 LDS2668 309 5.4 133
Show Alioth 12540+5558 BLM 2 60 0.1 133
Show 12418+5645 BWL 33 AB 8 9.0 136
Show 12418+5645 BWL 33 AC 239 12.4 136
Show 12418+5645 BWL 33 AD 241 22.8 136
Show 13114+5856 CBL 413 235 34.1 137
Show 13042+5615 MLR 554 145 0.6 137
Show 12487+6019 YSC 46 Aa,Ab 200 0.1 139
Show 12487+6019 MET 61 AB 285 0.8 139
Show 12487+6019 SHY 66 AC 138 999.9 139
Show 12487+6019 SHY 66 AD 119 999.9 139
Show 13126+5827 STF1732 AB 127 25.7 141
Show 13126+5827 BU 1434 BC 288 2.2 141
Show 12436+6001 LAF 48 AB 301 1.9 142
Show 12436+6001 LAF 48 AC 134 14.1 142

 
 
WDS 12550+5810 : COMPONENTS
 
 
  A B
B pa=278.9°
sep=9.87"
 
C pa=78.4°
sep=69.76"
pa=80.9°
sep=79.08"
 
 
12550+5810 A
 
 
Name HD 112311 Coord arcsec 2000 125459.60+580937.6 Mag 8.58 Spectral class F0IV (yellow-white)
PmRA -5.00 PmDE -57.0 SAO 28561 HIP 63034
Tycho2 3848-00075-1 HD 112311 GC 17538 BD BD+58 1402
Tycho2
Tycho2 3848-00075-1 Pflag RAmdeg 193.74830083 DEmdeg 58.16029778
PmRA -4.7 PmDE -59.8 E RAmdeg 6 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.35 EpDEm 1991.36
Num 10 Q RAmdeg 0.7 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 8.987 E BTmag 0.016 VTmag 8.576
E VTmag 0.012 Prox 186 TYC T HIP 63034
CCDM A RAdeg 193.74832139 DEdeg 58.16043639 EpRA 1990 1.68
EpDE 1990 1.65 E RAdeg 6.2 E DEdeg 6.2 Posflg
Corr 0.0
SAO
SAO 28561 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 -0.064 Vmag 8.2 SpType F0
Double code Source 70 CatNum 17538 DM BD+58 1402
DMcomp BDsup HD 112311 M HD 0
GC 17538 RA1950rad 3.37219886 DE1950rad 1.01982671 PmRA2000 -0.0005
PmDE2000 -0.06
Hipparcos
Catalog H HIP 63034 Proxy RAhms 12 54 59.60
DEdms +58 09 37.6 Vmag 8.57 VarFlag R Vmag G
RAdeg 193.748 DEdeg 58.1604 AstroRef A Plx 9.45
CCDM 12551+5810 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual B M HIP
Theta Rho HD 112311 BD BD+58 1402
CD CP Dm number +58 1402 VIred 0.44
SpType F0IV R SpType Coord arcsec 2000 125459.60+580937.6
Hipparcos 2
HIP 63034 Sn 95 So 3 Nc 1
RArad 3.3815462408 DErad 1.015091217 Plx 14.67 PmRA -7.01
PmDE -55.94 E RArad 1.54 E DErad 1.49 E Plx 2.09
E pmRA 2.04 E pmDE 1.68 Hpmag 8.6761 E Hpmag 0.0255
SHp 0.076 VA 0 BV 0.375 E BV 0.004
VI 0.44
 
 
12550+5810 B
 
 
Coord arcsec 2000 125458.37+580939.1 Mag 9.8 PmRA -5.00 PmDE -59.0
HIP 63028 Tycho2 3848-00504-1 Calc delta mag 1.22 Calc coord yes
Tycho2
Tycho2 3848-00504-1 Pflag RAmdeg 193.73856937 DEmdeg 58.16077574
PmRA 2.0 PmDE -56.7 E RAmdeg 16 E DEmdeg 16
E pmRA 3.6 E pmDE 3.5 EpRAm 1991.41 EpDEm 1991.37
Num 3 Q RAmdeg 1.3 Q DEmdeg 1.7 Q pmRA 1.3
Q pmDE 1.7 BTmag 10.427 E BTmag 0.031 VTmag 9.803
E VTmag 0.024 Prox 186 TYC T HIP 63028
CCDM B RAdeg 193.73856083 DEdeg 58.16090750 EpRA 1990 1.66
EpDE 1990 1.64 E RAdeg 16.2 E DEdeg 16.2 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 63028 Proxy RAhms 12 54 57.25
DEdms +58 09 39.3 Vmag 9.85 VarFlag R Vmag H
RAdeg 193.739 DEdeg 58.1609 AstroRef B Plx 5.52
CCDM 12551+5810 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual B M HIP
Theta Rho HD 112311 BD
CD CP Dm number VIred 1.13
SpType G5 R SpType Coord arcsec 2000 125457.25+580939.3
Hipparcos 2
HIP 63028 Sn 95 So 3 Nc 1
RArad 3.381375367 DErad 1.0150992231 Plx 41.33 PmRA -0.93
PmDE -72.83 E RArad 8.91 E DErad 6.51 E Plx 10
E pmRA 10.69 E pmDE 7.94 Hpmag 9.8776 E Hpmag 0.0653
SHp 0 VA 0 BV 1.169 E BV 0.02
VI 1.13
 
 
12550+5810 C
 
 
Coord arcsec 2000 125508.24+580951.7 Mag 9.61 PmRA -16.00 PmDE -6.0
Calc delta mag 1.03 Calc coord yes