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Current system
10302+5100
STT 219
HD 90806


Nearby doubles
42' : 10345+5103
COU2622

47' : 10259+5122
LDS2858

52' : 10261+5029
LDS1241

53' : 10341+5023
COU2621

56' : 10326+5151
LDS2868AB

59' : 10348+5020
CVR 569

60' : 10276+5154
TDS7286

67' : 10369+5042
COU2624

69' : 10371+5121
LDS2871

77' : 10274+4949
RAO 247

80' : 10225+5030
HDS1493

84' : 10390+5104
UC 157

91' : 10397+5045
WIS 169

93' : 10213+5023
HDS1489

96' : 10383+5157
HJ 2537AB

98' : 10405+5104
CVR1302

98' : 10315+4923
TDS7317

100' : 10358+4937
COU2623

100' : 10310+5239
LDS2865

101' : 10195+5057
DAM2314

102' : 10196+5049
TDS7183

103' : 10271+4922
SLW 475

103' : 10194+5052
DAM2312

103' : 10295+5242
RAO 250

105' : 10238+4935
HDS1495

105' : 10191+5058
TDS7179



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

10302+5100 STT 219 (HD 90806)

 
 
10h 30m 11.49s +50° 59' 36.2" P.A. 297.00 sep 13.2 mag 7.60,11.70 Sp A7IV dist. 158.48 pc (516.96 l.y.)
 
 
Coord 2000 10302+5100 Discov num STT 219 Comp Coord arcsec 2000 10 30 11.49 +50 59 36.2
Date first 1831 Date last 2015 Obs 25
Pa first 305 Pa last 297.3 P.A. Now (θ) 297.3°
Sep first 12.0 Sep last 13.176 Sep. Now (ρ) 13.176"
Mag pri 7.60 Mag sec 11.70 delta mag (ΔM) 4.1 Spectral class A7IV (white)
Pri motion ra -048 Sec motion ra -063
Pri motion dec -024 Sec motion dec -023
Notes N (See Notes)
rPM=0.224 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 90806 Constellation Ursa Major SAO 27664 HIP 51427
Tycho2 3448-01125-1 Gaia DR2 847362348462268672 HD 90806 BD BD+51 1604
Distance 158.48 Distance ly 516.96
 
 
WDS 10302+5100 STT 219 (HD 90806) : NOTES
 
 
discov_num notes refcode
STT 219 BDS 5471, HJ 2535 probably same star. The Hipparcos secondary
magnitude of 7.70 is very different than the visual mean of 11.2.
 
 
DISCOVERER
 
 
discov author
STT (O. Struve DD - Appendix list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
10302+5100 STT 219 1999 16 298 13.2 7.60 11.20 A7IV +51 1604 N D 103011.49+505936.2
10302+5100 STT 219 2010 17 297 13.3 7.60 11.20 A7IV +51 1604 N D 103011.49+505936.2
10302+5100 STT 219 2015 20 297 13.2 7.60 11.70 A7IV +51 1604 N 103011.49+505936.2

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

 
 
WDS 10302+5100 STT 219 (HD 90806) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 10302+5100 STT 219 (HD 90806) : MEASURES
 
 
No records found.

 
 
WDS 10302+5100 (HD 90806) : VIRTUAL EYEPIECE
 
 

10302+5100 STT 219A mag 7.6 Sp A7IV 10302+5100 STT 219B sep 13.2 P.A. 297.30 mag 11.7 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 10302+5100 (HD 90806) : ALADIN DSS IMAGE @ 10h 30m 11.49s +50° 59' 36.2"
 
 
 
 
WDS 10302+5100 STT 219 (HD 90806) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

10302+5100 STT 219 distance=1' 10345+5103 COU2622 distance=42' 10259+5122 LDS2858 distance=47' 10261+5029 LDS1241 distance=52' 10341+5023 COU2621 distance=53' 10326+5151 LDS2868AB distance=56' 10348+5020 CVR 569 distance=59' 10276+5154 TDS7286 distance=60' 10369+5042 COU2624 distance=67' 10371+5121 LDS2871 distance=69' 10274+4949 RAO 247 distance=77' 10225+5030 HDS1493 distance=80' 10390+5104 UC 157 distance=84' 10397+5045 WIS 169 distance=91' 10213+5023 HDS1489 distance=93' 10383+5157 HJ 2537AB distance=96' 10405+5104 CVR1302 distance=98' 10315+4923 TDS7317 distance=98' 10358+4937 COU2623 distance=100' 10310+5239 LDS2865 distance=100' 10195+5057 DAM2314 distance=101' 10196+5049 TDS7183 distance=102' 10271+4922 SLW 475 distance=103' 10194+5052 DAM2312 distance=103' 10295+5242 RAO 250 distance=103' 10238+4935 HDS1495 distance=105' 10191+5058 TDS7179 distance=105' 10260+5237 STF1428 distance=106' 10188+5059 DAM2295 distance=108' 10187+5055 DAM2291 distance=109' 10279+4911 LDS3989 distance=110' 10186+5044 SLW 460 distance=111' 10189+5133 CVR1279 distance=112' 10376+4933 KPP1994 distance=112' 10423+5055 UC 158 distance=115' 10399+4952 LDS4005 distance=115' 10421+5129 CBL 43 distance=117' 10429+5048 STF1462AB distance=121' 10429+5048 STF1462AC distance=121' 10170+5115 KPP1690 distance=125' 10301+5306 TDS7302 distance=126' 10399+5229 TDS7404 distance=127' 10342+5303 DAM2430 distance=130' 10281+4847 KUI 50 distance=135' 10158+5102 AZC 161 distance=136' 10353+5309 MLR 702 distance=137' 10182+5230 TDS7166 distance=144' 10346+5323 FMR 93 distance=150' 10353+5323 LDS3015 distance=152' 10321+5330 UC 1948 distance=152' 10233+4843 ES 917 distance=153' 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 10302+5100 STT 219 297 13.2 1
Show 10345+5103 COU2622 310 1.4 42
Show 10259+5122 LDS2858 10 20.1 47
Show 10261+5029 LDS1241 26 14.4 52
Show 10341+5023 COU2621 176 1.0 53
Show 10326+5151 LDS2868 AB 167 10.6 56
Show 10348+5020 CVR 569 181 14.2 59
Show 10276+5154 TDS7286 326 0.7 60
Show 10369+5042 COU2624 134 1.0 67
Show 10371+5121 LDS2871 10 41.3 69
Show 10274+4949 RAO 247 262 1.0 77
Show 10225+5030 HDS1493 38 0.2 80
Show 10390+5104 UC 157 295 17.6 84
Show 10397+5045 WIS 169 6 999.9 91
Show 10213+5023 HDS1489 313 0.2 93
Show 10383+5157 HJ 2537 AB 55 13.2 96
Show 10405+5104 CVR1302 202 3.0 98
Show 10315+4923 TDS7317 111 3.4 98
Show 10358+4937 COU2623 294 1.8 100
Show 10310+5239 LDS2865 117 11.8 100
Show 10195+5057 DAM2314 155 5.4 101
Show 10196+5049 TDS7183 155 1.4 102
Show 10271+4922 SLW 475 193 22.4 103
Show 10194+5052 DAM2312 81 3.8 103
Show 10295+5242 RAO 250 347 0.6 103
Show 10238+4935 HDS1495 183 0.1 105
Show 10191+5058 TDS7179 313 0.5 105
Show 10260+5237 STF1428 88 2.8 106
Show 10188+5059 DAM2295 252 4.2 108
Show 10187+5055 DAM2291 283 11.2 109
Show 10279+4911 LDS3989 247 31.3 110
Show 10186+5044 SLW 460 132 23.9 111
Show 10189+5133 CVR1279 77 4.4 112
Show 10376+4933 KPP1994 342 15.8 112
Show 10423+5055 UC 158 106 29.5 115
Show 10399+4952 LDS4005 304 177.1 115
Show 10421+5129 CBL 43 182 11.5 117
Show 10429+5048 STF1462 AB 175 7.9 121
Show 10429+5048 STF1462 AC 59 193.1 121
Show 10170+5115 KPP1690 145 13.1 125
Show 10301+5306 TDS7302 107 0.5 126
Show 10399+5229 TDS7404 28 0.6 127
Show 10342+5303 DAM2430 130 1.4 130
Show 10281+4847 KUI 50 23 3.9 135
Show 10158+5102 AZC 161 150 15.1 136
Show 10353+5309 MLR 702 164 0.3 137
Show 10182+5230 TDS7166 220 2.3 144
Show 10346+5323 FMR 93 90 49.4 150
Show 10353+5323 LDS3015 23 3.1 152
Show 10321+5330 UC 1948 148 32.1 152
Show 10233+4843 ES 917 151 2.0 153

 
 
WDS 10302+5100 : COMPONENTS
 
 
  A
B pa=297.3°
sep=13.18"
 
 
10302+5100 A
 
 
Name HD 90806 Coord arcsec 2000 103011.49+505936.2 Mag 7.6 Spectral class A7IV (white)
PmRA -48.00 PmDE -24.0 HIP 51427 Tycho2 3448-01125-1
HD 90806 BD BD+51 1604
Tycho2
Tycho2 3448-01125-1 Pflag RAmdeg 157.54768044 DEmdeg 50.99332331
PmRA -47.6 PmDE -23.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.49 EpDEm 1991.51
Num 15 Q RAmdeg 1.8 Q DEmdeg 0.8 Q pmRA 1.8
Q pmDE 0.8 BTmag 7.829 E BTmag 0.015 VTmag 7.571
E VTmag 0.010 Prox 999 TYC T HIP 51427
CCDM RAdeg 157.54785194 DEdeg 50.99337639 EpRA 1990 1.87
EpDE 1990 1.80 E RAdeg 4.0 E DEdeg 4.4 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 51427 Proxy RAhms 10 30 11.49
DEdms +50 59 36.2 Vmag 7.56 VarFlag R Vmag G
RAdeg 157.548 DEdeg 50.9934 AstroRef Plx 7.64
CCDM -48.98 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD BD BD+51 1604
CD CP Dm number +51 1604 VIred 0.23
SpType F0 R SpType Coord arcsec 2000 103011.49+505936.2
Hipparcos 2
HIP 51427 Sn 5 So 0 Nc 1
RArad 2.7497289613 DErad 0.8900023792 Plx 6.31 PmRA -47.99
PmDE -23.59 E RArad 0.55 E DErad 0.45 E Plx 0.81
E pmRA 0.64 E pmDE 0.43 Hpmag E Hpmag 0.0012
SHp 0.012 VA 0 BV 0.21 E BV 0.015
VI 0.23
CCDM
Ccdm 10302+5100 RComp Comp A Note1
Note2 Discov num DRAs -0.52 DDEs -23.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp F0 PmNote *
PmRA -39 PmDE -15 Dm number +51 1604 Cat1 BD
Name2 +51 806 Cat2 AGK2/3 HD 90806 M HD
ADS BDS A 7796 M ADS BDS N IDS IDS 10240N5130A
HIC 51427
 
 
10302+5100 B
 
 
Coord arcsec 2000 103010.25+505942.2 Mag 11.7 PmRA -63.00 PmDE -23.0
Delta magnitude 4.1 Coordinate calculated yes
CCDM
Ccdm 10302+5100 RComp Comp B Note1
Note2 Discov num STT 219 DRAs -1.86 DDEs -17.0
R dRAs 90 Year 1847 Theta 297 Rho 13.4
Obs 7 Vmag 11.0 Sp PmNote *
PmRA -47 PmDE -13 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7796 M ADS BDS N N IDS IDS 10240N5130B
HIC 51426