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Doubles in session


Current system
11185+3306
STF 1524 AB
Alula Borealis


Nearby doubles
25' : 11169+3251
RAO 654

30' : 11185+3335
CVR1358

39' : 11161+3329
GMZ 187

39' : 11171+3340
GMZ 188

46' : 11195+3350
GMZ 192

47' : 11177+3351
GMZ 189AB

49' : 11182+3354
GMZ 191

52' : 11225+3256
CVR 608

53' : 11227+3305
CVR1363

54' : 11227+3313
CVR1364

63' : 11139+3331
GMZ 186

68' : 11133+3327
HO 254

71' : 11133+3238
SLN 67

72' : 11158+3202
CBL 334

73' : 11243+3306
HDS1621

76' : 11219+3408
GMZ 194

76' : 11220+3407
GMZ 195

83' : 11124+3336
GMZ 185

84' : 11245+3340
UC 2130

84' : 11202+3426
UC 2118

86' : 11174+3430
ES 305

88' : 11234+3408
GMZ 196

94' : 11162+3136
A 2157

94' : 11182+3132
STF1523AB
Alula Australis

97' : 11125+3205
COU 963

97' : 11118+3218
CVR 115



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.

11185+3306 STF 1524 AB (Alula Borealis)

 
 
11h 18m 28.74s +33° 05' 39.5" P.A. 147.00 sep 7.0 mag 3.64,10.10 Sp K3IIIBaO dist. 122.4 pc (399.27 l.y.)
 
 
Coord 2000 11185+3306 Discov num STF1524 Comp AB Coord arcsec 2000 11 18 28.74 +33 05 39.5
Date first 1827 Date last 2020 Obs 56
Pa first 145 Pa last 147.1 P.A. Now (θ) 147.1°
Sep first 5.0 Sep last 7.04 Sep. Now (ρ) 7.04"
Mag pri 3.64 Mag sec 10.10 delta mag (ΔM) 6.46 Spectral class K3IIIBaO (yellow-orange)
Pri motion ra -026 Sec motion ra
Pri motion dec +027 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
11185+3306 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Alula Borealis 62486 11 18 29 +33 05 40 STF 1524 AB 2020 56 147 7.0 3.64 10.10 6.46 <===
Show 62486 11 18 29 +33 05 40 BUP 9001 AC 2015 4 147 156.8 3.64 14.15 10.51
Show 62486 11 18 29 +33 05 40 DAM 652 AD 2020 6 269 281.1 3.64 8.88 5.24
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Alula Borealis Constellation Ursa Major SAO 62486 HIP 55219
Tycho2 2520-02631-1 Gaia DR2 757565233819639168 HD 98262 HR 4377
GC 15547 ADS 8123 BD BD+33 2098 Bayer Nu Ursae Majoris
Bayer name Nu UMa Flamsteed 54 Ursae Majoris Flamsteed name 54 UMa FK5 425
Distance 122.4 Distance ly 399.27 Bayer greek ν UMa
 
 
WDS 11185+3306 STF 1524 AB (Alula Borealis) : NOTES
 
 
discov_num notes refcode
STF1524 nu UMa = 54 UMa = Alula Borealis
Mk III Limd-darkened diameter 4.71 +/- 0.07 mas. MkT2001
Mk III Limb-darkened diameter 4.759 +/- 0.048 mas. MkT2003
NPOI Limb-darkened diameter 4.76 +/- 0.07 mas. NOI2001b
NPOI Limb-darkened diameter 4.561 +/- 0.016 mas, Sp = K3III, NOI2018
R =60.00 +/- 1.27 \rsun, Teff = 4422 +/- 56 K, L = 1242 +/- 81 \lsun,
M = 3.82 +/- 0.23 \msun, Age = 0.20 +/- 0.03 Gyr.
H N 53. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
MkT2001 not j Nordgren, T.E., Sudol, J.J. & Mozurkewich, D. 2001AJ....122.2707N
MkT2001 AJ 122, 2707, 2001 .
MkT2003 Km - Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A., 2003AJ....126.2502M
MkT2003 +not Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003 AJ 126, 2502, 2003
NOI2001b not j Nordgren, T.E., Sudol, J.J. & Mozurkewich, D. 2001AJ....122.2707N
NOI2001b AJ 122, 2707, 2001 .
NOI2018 not j Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter, 2018AJ....155...30B
NOI2018 D.J., Tycner, C. & van Belle, G.T.
NOI2018 AJ 155, 30, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1 DAM Damm, F.
403 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
11185+3306 STF1524 AB 2005 52 149 7.4 3.48 10.10 K3IIIBaO N D 111828.76+330539.3
11185+3306 STF1524 AB 2015 53 145 7.8 3.64 10.10 K3IIIBaO N D 111828.74+330539.5
11185+3306 STF1524 AB 2018 54 149 7.5 3.64 10.10 K3IIIBaO N 111828.74+330539.5
11185+3306 STF1524 AB 2020 55 147 7.0 3.64 10.10 K3IIIBaO N 111828.74+330539.5

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

 
 
WDS 11185+3306 STF 1524 AB (Alula Borealis) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 20/04/11 Adam Long difficut separated 140 very interesting Sec appears as faint speck right under diff. spike. Unsure at first but better with time - seen well at moments. Sec appears blue in contrast with yell pri

 
 
WDS 11185+3306 STF 1524 AB (Alula Borealis) : MEASURES
 
 
No records found.

 
 
WDS 11185+3306 (Alula Borealis) : VIRTUAL EYEPIECE
 
 

11185+3306 STF1524A mag 3.64 Sp K3IIIBaO 11185+3306 STF1524B sep 6.7 P.A. 151.50 mag 10.1 11185+3306 BUP9001C sep 149.8 P.A. 151.60 mag 14.15 11185+3306 DAM 652D sep 235.6 P.A. 268.30 mag 8.88 Sp F8 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 11185+3306 (Alula Borealis) : ALADIN DSS IMAGE @ 11h 18m 28.74s +33° 05' 39.5"
 
 
 
 
WDS 11185+3306 STF 1524 AB (Alula Borealis) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11185+3306 STF1524AB (Alula Borealis) distance=0' 11169+3251 RAO 654 distance=25' 11185+3335 CVR1358 distance=30' 11161+3329 GMZ 187 distance=39' 11171+3340 GMZ 188 distance=39' 11195+3350 GMZ 192 distance=46' 11177+3351 GMZ 189AB distance=47' 11182+3354 GMZ 191 distance=49' 11225+3256 CVR 608 distance=52' 11227+3305 CVR1363 distance=53' 11227+3313 CVR1364 distance=54' 11214+3348 GMZ 193BC distance=57' 11139+3331 GMZ 186 distance=63' 11133+3327 HO 254 distance=68' 11133+3238 SLN 67 distance=71' 11158+3202 CBL 334 distance=72' 11243+3306 HDS1621 distance=73' 11219+3408 GMZ 194 distance=76' 11220+3407 GMZ 195 distance=76' 11124+3336 GMZ 185 distance=83' 11245+3340 UC 2130 distance=84' 11202+3426 UC 2118 distance=84' 11174+3430 ES 305 distance=86' 11234+3408 GMZ 196 distance=88' 11162+3136 A 2157 distance=94' 11182+3132 CHR 178Ba,Bb distance=94' 11182+3132 STF1523AB (Alula Australis) distance=94' 11182+3132 POP1219AC (Alula Australis) distance=94' 11182+3132 WTE 1AD (Alula Australis) distance=94' 11125+3205 COU 963 distance=97' 11118+3218 CVR 115 distance=97' 11211+3134 MLB 849 distance=99' 11224+3438 CVR 607 distance=105' 11152+3443 KZA 14 distance=105' 11108+3215 FAR 61 distance=110' 11188+3458 ES 434 distance=115' 11129+3130 HEI 12 distance=120' 11194+3506 HJ 495 distance=121' 11282+3313 SEI 524 distance=123' 11150+3501 KZA 12AB distance=124' 11150+3501 KZA 12AC distance=124' 11150+3501 WNO 35AD distance=124' 11202+3507 CVR 604 distance=124' 11117+3441 KZA 10AC distance=128' 11117+3441 KZA 10AB distance=128' 11117+3441 KZA 10CB distance=129' 11280+3216 SLW 602 distance=130' 11280+3403 HJ 498 distance=133' 11287+3224 COU 781 distance=136' 11077+3316 GMZ 183 distance=136' 11247+3458 LDS4095 distance=137' 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 Alula Borealis 11185+3306 STF1524 AB 147 7.0
Show Alula Borealis 11185+3306 BUP9001 AC 147 156.8
Show Alula Borealis 11185+3306 DAM 652 AD 269 281.1
Show 11169+3251 RAO 654 270 0.8 25
Show 11185+3335 CVR1358 337 3.5 30
Show 11161+3329 GMZ 187 116 4.5 39
Show 11171+3340 GMZ 188 75 9.0 39
Show 11195+3350 GMZ 192 190 12.2 46
Show 11177+3351 GMZ 189 AB 102 7.3 47
Show 11182+3354 GMZ 191 194 8.8 49
Show 11225+3256 CVR 608 305 8.0 52
Show 11227+3305 CVR1363 73 3.1 53
Show 11227+3313 CVR1364 180 3.8 54
Show 11214+3348 GMZ 193 BC 352 3.7 57
Show 11139+3331 GMZ 186 195 14.6 63
Show 11133+3327 HO 254 163 2.7 68
Show 11133+3238 SLN 67 44 56.7 71
Show 11158+3202 CBL 334 157 38.8 72
Show 11243+3306 HDS1621 81 0.2 73
Show 11219+3408 GMZ 194 238 10.0 76
Show 11220+3407 GMZ 195 92 2.4 76
Show 11124+3336 GMZ 185 200 3.7 83
Show 11245+3340 UC 2130 264 86.3 84
Show 11202+3426 UC 2118 68 26.8 84
Show 11174+3430 ES 305 32 3.9 86
Show 11234+3408 GMZ 196 108 2.7 88
Show 11162+3136 A 2157 3 1.4 94
Show 11182+3132 CHR 178 Ba,Bb 75 0.0 94
Show Alula Australis 11182+3132 STF1523 AB 152 2.3 94
Show Alula Australis 11182+3132 POP1219 AC 331 59.7 94
Show Alula Australis 11182+3132 WTE 1 AD 136 511.4 94
Show 11125+3205 COU 963 187 1.1 97
Show 11118+3218 CVR 115 139 93.9 97
Show 11211+3134 MLB 849 174 5.1 99
Show 11224+3438 CVR 607 99 18.6 105
Show 11152+3443 KZA 14 334 47.6 105
Show 11108+3215 FAR 61 298 0.2 110
Show 11188+3458 ES 434 223 8.0 115
Show 11129+3130 HEI 12 120 2.4 120
Show 11194+3506 HJ 495 121 14.7 121
Show 11282+3313 SEI 524 154 8.1 123
Show 11150+3501 KZA 12 AB 21 35.0 124
Show 11150+3501 KZA 12 AC 216 43.8 124
Show 11150+3501 WNO 35 AD 166 31.2 124
Show 11202+3507 CVR 604 156 26.1 124
Show 11117+3441 KZA 10 AC 288 44.9 128
Show 11117+3441 KZA 10 AB 43 24.5 128
Show 11117+3441 KZA 10 CB 86 59.7 129
Show 11280+3216 SLW 602 314 19.7 130
Show 11280+3403 HJ 498 89 21.6 133
Show 11287+3224 COU 781 288 0.6 136

 
 
WDS 11185+3306 : COMPONENTS
 
 
  A B C
B pa=151.5°
sep=6.72"
 
C pa=151.6°
sep=149.76"
pa=151.6°
sep=143.03"
 
D pa=268.3°
sep=235.56"
pa=269.8°
sep=238.66"
pa=292.2°
sep=331.12"
 
 
11185+3306 A
 
 
Common name Alula Borealis Coord arcsec 2000 111828.74+330539.5 Mag 3.64 Spectral class K3IIIBaO (yellow-orange)
PmRA -26.00 PmDE 27.0 SAO 62486 HIP 55219
Tycho2 2520-02631-1 HD 98262 HR 4377 GC 15547
BD BD+33 2098 Bayer Nu Ursae Majoris Bayer name Nu UMa Flamsteed 54 Ursae Majoris
Flamsteed name 54 UMa FK5 425
Tycho2
Tycho2 2520-02631-1 Pflag RAmdeg 169.61973721 DEmdeg 33.09430465
PmRA -26.4 PmDE 27.3 E RAmdeg 3 E DEmdeg 3
E pmRA 0.6 E pmDE 0.6 EpRAm 1991.40 EpDEm 1991.26
Num 23 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.7
Q pmDE 0.8 BTmag 5.325 E BTmag 0.014 VTmag 3.635
E VTmag 0.009 Prox 999 TYC T HIP 55219
CCDM RAdeg 169.61980889 DEdeg 33.09424139 EpRA 1990 1.85
EpDE 1990 1.66 E RAdeg 3.3 E DEdeg 3.4 Posflg
Corr 0.1
SAO
SAO 62486 DelFlag RA1950 PmRA1950 -0.0022
DE1950 PmDE1950 0.023 Vmag 3.7 SpType K0
Double code Source 74 CatNum 425 DM BD+33 2098
DMcomp BDsup HD 98262 M HD 0
GC 15547 RA1950rad 2.94865718 DE1950rad 0.58237059 PmRA2000 -0.0021
PmDE2000 0.028
Hipparcos
Catalog H HIP 55219 Proxy RAhms 11 18 28.76
DEdms +33 05 39.3 Vmag 3.49 VarFlag R Vmag H
RAdeg 169.62 DEdeg 33.0942 AstroRef Plx 7.74
CCDM 11185+3306 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 98262 BD BD+33 2098
CD CP Dm number +33 2098 VIred 1.37
SpType K3III SB R SpType Coord arcsec 2000 111828.76+330539.3
Hipparcos 2
HIP 55219 Sn 5 So 0 Nc 1
RArad 2.9604242288 DErad 0.5776034304 Plx 8.17 PmRA -26.84
PmDE 28.69 E RArad 0.15 E DErad 0.12 E Plx 0.17
E pmRA 0.19 E pmDE 0.15 Hpmag 3.6375 E Hpmag 0.0008
SHp 0.006 VA 0 BV 1.4 E BV 0.009
VI 1.37
CCDM
Ccdm 11185+3306 RComp Comp A Note1
Note2 Discov num DRAs -1.25 DDEs -20.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 3.7 Sp K0 PmNote *
PmRA -27 PmDE 23 Dm number +33 2098 Cat1 BD
Name2 +33 1074 Cat2 AGK2/3 HD 98262 M HD
ADS BDS A 8123 M ADS BDS N IDS IDS 11131N3338A
HIC 55219
 
 
11185+3306 B
 
 
Coord arcsec 2000 111828.99+330533.6 Mag 10.1 Calc delta mag 6.46 Calc coord yes
CCDM
Ccdm 11185+3306 RComp Comp B Note1
Note2 Discov num STF1524 DRAs -0.94 DDEs -27.1
R dRAs 90 Year 1830 Theta 147 Rho 7.2
Obs 22 Vmag 10.1 Sp PmNote *
PmRA -28 PmDE 19 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8123 M ADS BDS N IDS IDS 11131N3338B
HIC 55219
 
 
11185+3306 C
 
 
Coord arcsec 2000 111834.40+330327.7 Mag 14.15 PmRA -13.00 PmDE 2.0
Calc delta mag 10.51 Calc coord yes
 
 
11185+3306 D
 
 
Coord arcsec 2000 111810.00+330532.6 Mag 8.88 Spectral class F8 (yellow-white) PmRA -38.00
PmDE 20.0 Calc delta mag 5.24 Calc coord yes