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Current system
17322+5511
STFA 35
Nu2 Dra


Nearby doubles
37' : 17337+5545
GRV1152

46' : 17376+5508
KPP1235

55' : 17380+5521
GRV1137

57' : 17362+5425
ES 637

61' : 17277+5424
UC 3345

65' : 17386+5546
STF2199

70' : 17279+5610
A 1152

73' : 17240+5547
GRV1136

82' : 17318+5349
BEM 27

86' : 17267+5621
A 1151

86' : 17388+5406
HDS2493

89' : 17328+5639
SLN 37

91' : 17402+5411
ES 638

93' : 17215+5532
ES 2656

98' : 17210+5537
GRV1134

99' : 17341+5333
UC 3369

99' : 17373+5640
STI2354

104' : 17235+5623
LDS4741

105' : 17319+5655
ES 2659

108' : 17258+5643
RAO 370

112' : 17285+5657
ES 1741

119' : 17461+5526
UC 3400

120' : 17220+5351
BU 1249AB

123' : 17220+5638
ES 2657AB

126' : 17469+5503
UC 3403

128' : 17323+5718
LDS1449



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

17322+5511 STFA 35 (Nu2 Dra)

 
 
17h 32m 15.88s +55° 10' 22.1" P.A. 311.00 sep 62.3 mag 4.87,4.90 Sp A4m+A6V dist. 30.49 pc (99.46 l.y.)
 
 
Coord 2000 17322+5511 Discov num STFA 35 Comp Coord arcsec 2000 17 32 15.88 +55 10 22.1
Date first 1690 Date last 2021 Obs 195
Pa first 314 Pa last 310.6 P.A. Now (θ) 310.6°
Sep first 71.4 Sep last 62.32 Sep. Now (ρ) 62.32"
Mag pri 4.87 Mag sec 4.90 delta mag (ΔM) 0.03 Spectral class A4m+A6V (white/white)
Pri motion ra +143 Sec motion ra +147
Pri motion dec +062 Sec motion dec +054
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.057 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Nu2 Dra Var name NSV9164 Dra Constellation Draco SAO 30450
HIP 85829 Tycho2 3892-01621-1 Gaia DR2 1420972548150735744 HD 159560
HR 6555 GC 23801 ADS 10628 BD BD+55 1945
Bayer Nu 2 Draconis Bayer name Nu2 Dra Flamsteed 25 Draconis Flamsteed name 25 Dra
FK5 657 Distance 30.49 Distance ly 99.46 Bayer greek ν2 Dra
 
 
WDS 17322+5511 STFA 35 (Nu2 Dra) : NOTES
 
 
discov_num notes refcode
STFA 35 A: 25 Dra = nu 2 Dra
B: 24 Dra = nu 1 Dra = BD+55@1944.
AB: STTA156. Both components are spectroscopic binaries.
HJL 249. HJL1986
SHY 299. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
H 5 11. MEv2010
 
 
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)
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
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
17322+5511 STFA 35 2007 164 311 62.2 4.87 4.90 A4m A6V N DV 173215.88+551022.1
17322+5511 STFA 35 2009 166 312 62.7 4.87 4.90 A4m A6V NVD 173215.88+551022.1
17322+5511 STFA 35 2010 167 311 62.0 4.87 4.90 A4m A6V NVD 173215.88+551022.1
17322+5511 STFA 35 2011 169 311 62.0 4.87 4.90 A4m A6V NVD 173215.88+551022.1
17322+5511 STFA 35 2012 177 311 62.0 4.87 4.90 A4m A6V NVD 173215.88+551022.1
17322+5511 STFA 35 2015 178 312 62.1 4.87 4.90 A4m+A6V NVD 173215.88+551022.1
17322+5511 STFA 35 2016 186 310 62.5 4.87 4.90 A4m+A6V NV 173215.88+551022.1
17322+5511 STFA 35 2017 187 311 62.1 4.87 4.90 A4m+A6V NV 173215.88+551022.1
17322+5511 STFA 35 2021 195 311 62.3 4.87 4.90 A4m+A6V NV 173215.88+551022.1

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

 
 
WDS 17322+5511 STFA 35 (Nu2 Dra) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/07/20 daedalus1 mean difficulty separated 311   Seeing: Pickering 4, poor. Measures: theta 311, rho 62.3 +/- 0.152

 
 
WDS 17322+5511 STFA 35 (Nu2 Dra) : MEASURES
 
 
No records found.

 
 
WDS 17322+5511 (Nu2 Dra) : VIRTUAL EYEPIECE
 
 

17322+5511 STFA 35A mag 4.87 Sp A4m 17322+5511 STFA 35B sep 48.7 P.A. 326.30 mag 4.9 Sp A6V 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 17322+5511 (Nu2 Dra) : ALADIN DSS IMAGE @ 17h 32m 15.88s +55° 10' 22.1"
 
 
 
 
WDS 17322+5511 STFA 35 (Nu2 Dra) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17322+5511 STFA 35 distance=0' 17337+5545 GRV1152 distance=37' 17376+5508 KPP1235 distance=46' 17380+5521 GRV1137 distance=55' 17362+5425 ES 637 distance=57' 17277+5424 UC 3345 distance=61' 17386+5546 STF2199 distance=65' 17279+5610 A 1152 distance=70' 17240+5547 GRV1136 distance=73' 17318+5349 BEM 27 distance=82' 17267+5621 A 1151 distance=86' 17388+5406 HDS2493 distance=86' 17328+5639 SLN 37 distance=89' 17402+5411 ES 638 distance=91' 17215+5532 ES 2656 distance=93' 17210+5537 GRV1134 distance=98' 17341+5333 UC 3369 distance=99' 17373+5640 STI2354 distance=99' 17235+5623 LDS4741 distance=104' 17319+5655 ES 2659 distance=105' 17258+5643 RAO 370 distance=108' 17285+5657 ES 1741 distance=112' 17461+5526 UC 3400 distance=119' 17220+5351 BU 1249AB distance=120' 17220+5351 BU 1249AB,C distance=120' 17220+5638 ES 2657BC distance=123' 17220+5638 ES 2657AB distance=123' 17220+5638 ABH 90AD distance=123' 17220+5638 ES 2657AC distance=123' 17469+5503 UC 3403 distance=126' 17323+5718 LDS1449 distance=128' 17211+5637 LDS1444 distance=129' 17185+5608 ES 1740 distance=130' 17462+5613 STI2357 distance=134' 17270+5718 ES 2658 distance=135' 17251+5312 MLR 604 distance=135' 17437+5336 KPP 399 distance=138' 17462+5357 HDS2511 distance=142' 17165+5433 SCA9003AB distance=142' 17165+5433 SCA9003AC distance=142' 17165+5433 DAM 27AD distance=142' 17170+5612 SLE 81 distance=143' 17335+5734 MLR 571 distance=144' 17433+5703 LDS1450 distance=146' 17185+5346 ES 776AB distance=147' 17185+5346 ES 776BC distance=147' 17173+5636 STI2349 distance=152' 17174+5638 SLE 82 distance=153' 17183+5338 SWI 3 distance=154' 17301+5743 ES 1742 distance=154' 17322+5236 ES 777 distance=155' 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 17322+5511 STFA 35 311 62.3
Show 17337+5545 GRV1152 225 23.8 37
Show 17376+5508 KPP1235 123 9.5 46
Show 17380+5521 GRV1137 59 41.7 55
Show 17362+5425 ES 637 295 4.0 57
Show 17277+5424 UC 3345 199 26.1 61
Show 17386+5546 STF2199 53 2.0 65
Show 17279+5610 A 1152 204 0.2 70
Show 17240+5547 GRV1136 148 8.5 73
Show 17318+5349 BEM 27 205 13.0 82
Show 17267+5621 A 1151 238 1.1 86
Show 17388+5406 HDS2493 253 0.5 86
Show 17328+5639 SLN 37 241 2.4 89
Show 17402+5411 ES 638 185 2.5 91
Show 17215+5532 ES 2656 64 11.1 93
Show 17210+5537 GRV1134 319 20.8 98
Show 17341+5333 UC 3369 122 55.0 99
Show 17373+5640 STI2354 85 4.4 99
Show 17235+5623 LDS4741 209 86.8 104
Show 17319+5655 ES 2659 215 11.8 105
Show 17258+5643 RAO 370 339 1.0 108
Show 17285+5657 ES 1741 179 2.5 112
Show 17461+5526 UC 3400 151 7.4 119
Show 17220+5351 BU 1249 AB 82 0.6 120
Show 17220+5351 BU 1249 AB,C 78 62.1 120
Show 17220+5638 ES 2657 BC 73 11.7 123
Show 17220+5638 ES 2657 AB 97 28.4 123
Show 17220+5638 ABH 90 AD 114 83.7 123
Show 17220+5638 ES 2657 AC 90 39.2 123
Show 17469+5503 UC 3403 93 12.1 126
Show 17323+5718 LDS1449 133 18.2 128
Show 17211+5637 LDS1444 118 9.4 129
Show 17185+5608 ES 1740 315 1.6 130
Show 17462+5613 STI2357 171 11.9 134
Show 17270+5718 ES 2658 15 9.8 135
Show 17251+5312 MLR 604 96 0.8 135
Show 17437+5336 KPP 399 264 3.7 138
Show 17462+5357 HDS2511 97 0.4 142
Show 17165+5433 SCA9003 AB 97 44.1 142
Show 17165+5433 SCA9003 AC 332 80.7 142
Show 17165+5433 DAM 27 AD 3 40.9 142
Show 17170+5612 SLE 81 16 17.5 143
Show 17335+5734 MLR 571 330 0.1 144
Show 17433+5703 LDS1450 95 18.6 146
Show 17185+5346 ES 776 AB 153 28.5 147
Show 17185+5346 ES 776 BC 313 2.2 147
Show 17173+5636 STI2349 60 10.0 152
Show 17174+5638 SLE 82 331 42.4 153
Show 17183+5338 SWI 3 180 0.5 154
Show 17301+5743 ES 1742 28 1.6 154
Show 17322+5236 ES 777 349 6.1 155

 
 
WDS 17322+5511 : COMPONENTS
 
 
  A
B pa=326.3°
sep=48.73"
 
 
17322+5511 A
 
 
Componente originario normalizzato AB Name Nu2 Dra Coord arcsec 2000 173215.88+551022.1 Mag 4.87
Spectral class A4m (white) PmRA 143.00 PmDE 62.0 SAO 30450
HIP 85829 Tycho2 3892-01621-1 HD 159560 HR 6555
GC 23801 BD BD+55 1945 Bayer Nu 2 Draconis Bayer name Nu2 Dra
Flamsteed 25 Draconis Flamsteed name 25 Dra FK5 657
Tycho2
Tycho2 3892-01621-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 5.185 E BTmag 0.014 VTmag 4.870
E VTmag 0.009 Prox 620 TYC T HIP 85829
CCDM RAdeg 263.06617972 DEdeg 55.17281222 EpRA 1990 1.54
EpDE 1990 1.58 E RAdeg 3.5 E DEdeg 3.5 Posflg
Corr -0.2
SAO
SAO 30450 DelFlag RA1950 PmRA1950 0.0165
DE1950 PmDE1950 0.054 Vmag 5 SpType A5
Double code Source 74 CatNum 657 DM BD+55 1945
DMcomp BDsup HD 159560 M HD 0
GC 23801 RA1950rad 4.58706848 DE1950rad 0.96353237 PmRA2000 0.0172
PmDE2000 0.057
Hipparcos
Catalog H HIP 85829 Proxy RAhms 17 32 15.88
DEdms +55 10 22.1 Vmag 4.86 VarFlag R Vmag G
RAdeg 263.066 DEdeg 55.1728 AstroRef Plx 32.64
CCDM 17322+5511 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 159560 BD BD+55 1945
CD CP Dm number +55 1945 VIred 0.3
SpType Am R SpType Coord arcsec 2000 173215.88+551022.1
Hipparcos 2
HIP 85829 Sn 5 So 0 Nc 1
RArad 4.5913706814 DErad 0.9629471345 Plx 32.8 PmRA 142.65
PmDE 62.43 E RArad 0.18 E DErad 0.18 E Plx 0.18
E pmRA 0.21 E pmDE 0.26 Hpmag 4.9413 E Hpmag 0.0006
SHp 0.005 VA 0 BV 0.279 E BV 0.005
VI 0.3
CCDM
Ccdm 17322+5511 RComp Comp A Note1
Note2 Discov num DRAs 4.00 DDEs -37.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.0 Sp A5 PmNote *
PmRA 141 PmDE 54 Dm number +55 1945 Cat1 BD
Name2 +55 1100 Cat2 AGK2/3 HD 159560 M HD
ADS BDS A10628 M ADS BDS N IDS IDS 17302N5515A
HIC 85829
 
 
17322+5511 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 173212.73+551102.7 Mag 4.9 Spectral class A6V (white)
PmRA 147.00 PmDE 54.0 Bayer Nu 1 Draconis Bayer name Nu1 Dra
Flamsteed 24 Draconis Flamsteed name 24 Dra Calc delta mag 0.03 Calc coord yes
CCDM
Ccdm 17322+5511 RComp Comp B Note1
Note2 Discov num STF4035 DRAs -1.48 DDEs 3.3
R dRAs 10 Year 1833 Theta 312 Rho 61.9
Obs 99 Vmag 5.0 Sp A5 PmNote *
PmRA 139 PmDE 55 Dm number +55 1944 Cat1 BD
Name2 +55 1099 Cat2 AGK2/3 HD 159541 M HD
ADS BDS A10628 M ADS BDS N IDS IDS 17302N5515B
HIC 85819