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Doubles in session


Current system
18003+5251
STF 2271 AC


Nearby doubles
14' : 17599+5304
HO 563AB

26' : 18000+5316
A 1886

30' : 18027+5312
TDT 650

36' : 18012+5217
KPP 407

36' : 17571+5313
TDT 595

44' : 17581+5213
STF2261AB

53' : 18051+5322
TOK 614

67' : 18048+5344
HDS2546

70' : 18026+5358
ES 781

71' : 17585+5359
KPP 697

74' : 18054+5155
COU2513

82' : 18091+5312
MLR 584

83' : 18091+5314
FMR 139

85' : 17598+5416
ES 780

86' : 17543+5357
A 1885

89' : 17566+5129
BU 633AB
Eltanin

91' : 17521+5344
TOI1261

93' : 18097+5329
BEM 31

95' : 18064+5408
UC 3494

99' : 18105+5217
KPP4089

100' : 18091+5153
WIS 325

104' : 17574+5111
ES 78AB

105' : 18111+5330
AG 217

106' : 17551+5117
KPP2198

107' : 17578+5107
DAM 686

108' : 18116+5329
VBS 27



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

18003+5251 STF 2271 AC

 
 
18h 00m 18.74s +52° 51' 15.4" P.A. 17.00 sep 160.8 mag 8.17,12.98 Sp G0 dist. 60.42 pc (197.09 l.y.)
 
 
Coord 2000 18003+5251 Discov num STF2271 Comp AC Coord arcsec 2000 18 00 18.74 +52 51 15.4
Date first 1913 Date last 2015 Obs 7
Pa first 18 Pa last 17.4 P.A. Now (θ) 17.4°
Sep first 167.3 Sep last 160.803 Sep. Now (ρ) 160.803"
Mag pri 8.17 Mag sec 12.98 delta mag (ΔM) 4.81 Spectral class G0 (yellow)
Pri motion ra +032 Sec motion ra -002
Pri motion dec +069 Sec motion dec +009
Notes N (See Notes)
rPM=0.907
This double is not physical.
 
 
18003+5251 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 164874 30686 18 00 19 +52 51 15 STF 2271 AB 2019 105 267 3.5 8.17 9.24 1.07
Show 30686 18 00 19 +52 51 15 STF 2271 AC 2015 7 17 160.8 8.17 12.98 4.81 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30686 HIP 88155 Tycho2 3903-01127-1
Gaia DR2 2125511797904547840 HD 164874 BD BD+52 2125 Distance 60.42
Distance ly 197.09
 
 
WDS 18003+5251 STF 2271 AC : NOTES
 
 
discov_num notes refcode
STF2271 AB: B is SB2, P=18.888d Tok2014d
 
 
REFERENCES
 
 
refcode metd author reference
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
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
18003+5251 STF2271 AC 1922 2 18 167.0 8.17 12.90 G0 180018.74+525115.4
18003+5251 STF2271 AC 2008 3 18 161.8 8.17 12.90 G0 180018.74+525115.4
18003+5251 STF2271 AC 2012 6 18 161.0 8.17 12.90 G0 D 180018.74+525115.4
18003+5251 STF2271 AC 2015 7 17 160.8 8.17 12.98 G0 N 180018.74+525115.4

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

 
 
WDS 18003+5251 STF 2271 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18003+5251 STF 2271 AC : MEASURES
 
 
No records found.

 
 
WDS 18003+5251 : VIRTUAL EYEPIECE
 
 

18003+5251 STF2271A mag 8.17 Sp G0 18003+5251 STF2271B sep 2.1 P.A. 265.70 mag 9.24 18003+5251 STF2271C sep 156.2 P.A. 10.70 mag 12.98 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 18003+5251 : ALADIN DSS IMAGE @ 18h 00m 18.74s +52° 51' 15.4"
 
 
 
 
WDS 18003+5251 STF 2271 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18003+5251 STF2271AC distance=0' 17599+5304 HO 563AB distance=14' 17599+5304 HO 563AC distance=14' 18000+5316 A 1886 distance=26' 18027+5312 TDT 650 distance=30' 18012+5217 KPP 407 distance=36' 17571+5313 TDT 595 distance=36' 17581+5213 STF2261AB distance=44' 17581+5213 WAL 87AC distance=44' 18051+5322 TOK 614 distance=53' 18048+5344 HDS2546 distance=67' 18026+5358 ES 781 distance=70' 17585+5359 KPP 697 distance=71' 18054+5155 COU2513 distance=74' 18091+5312 MLR 584 distance=82' 18091+5314 FMR 139 distance=83' 17598+5416 ES 780 distance=85' 17543+5357 A 1885 distance=86' 17566+5129 BU 633AB (Eltanin) distance=89' 17566+5129 BU 633AC (Eltanin) distance=89' 17566+5129 BU 633AD (Eltanin) distance=89' 17566+5129 BU 633AE (Eltanin) distance=89' 17566+5129 BU 633AF (Eltanin) distance=89' 17566+5129 BU 633AG (Eltanin) distance=89' 17521+5344 TOI1261 distance=91' 18097+5329 BEM 31 distance=93' 18064+5408 UC 3494 distance=95' 18105+5217 KPP4089 distance=99' 18091+5153 WIS 325 distance=100' 17574+5111 ES 78AB distance=104' 17574+5111 FOX9011AC distance=104' 18111+5330 AG 217 distance=105' 17551+5117 KPP2198 distance=106' 17578+5107 DAM 686 distance=107' 18116+5329 VBS 27 distance=108' 18046+5111 WIS 323 distance=108' 18061+5116 COU2514 distance=109' 18048+5435 ES 641 distance=111' 17480+5224 MMA 38 distance=116' 18133+5242 A 1376 distance=118' 18132+5228 TDT 740 distance=120' 18109+5139 ES 642 distance=121' 17504+5414 OL 89 distance=121' 18134+5230 ES 644 distance=122' 18007+5453 ES 640 distance=122' 17473+5218 CVR 863 distance=123' 18041+5053 COU2391 distance=125' 18046+5053 STF2279 distance=125' 18001+5045 KPP1193 distance=126' 18126+5146 KPP4093 distance=131' 18138+5341 ES 645 distance=131' 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 18003+5251 STF2271 AB 267 3.5
Show 18003+5251 STF2271 AC 17 160.8
Show 17599+5304 HO 563 AB 184 0.7 14
Show 17599+5304 HO 563 AC 243 69.8 14
Show 18000+5316 A 1886 339 4.7 26
Show 18027+5312 TDT 650 125 1.1 30
Show 18012+5217 KPP 407 54 4.8 36
Show 17571+5313 TDT 595 77 0.5 36
Show 17581+5213 STF2261 AB 261 9.6 44
Show 17581+5213 WAL 87 AC 57 64.4 44
Show 18051+5322 TOK 614 83 999.9 53
Show 18048+5344 HDS2546 236 0.6 67
Show 18026+5358 ES 781 281 4.3 70
Show 17585+5359 KPP 697 94 6.2 71
Show 18054+5155 COU2513 54 1.0 74
Show 18091+5312 MLR 584 177 2.7 82
Show 18091+5314 FMR 139 149 22.2 83
Show 17598+5416 ES 780 124 4.0 85
Show 17543+5357 A 1885 81 0.4 86
Show Eltanin 17566+5129 BU 633 AB 152 21.1 89
Show Eltanin 17566+5129 BU 633 AC 234 41.2 89
Show Eltanin 17566+5129 BU 633 AD 11 59.5 89
Show Eltanin 17566+5129 BU 633 AE 235 96.0 89
Show Eltanin 17566+5129 BU 633 AF 114 126.0 89
Show Eltanin 17566+5129 BU 633 AG 28 143.6 89
Show 17521+5344 TOI1261 317 1.7 91
Show 18097+5329 BEM 31 306 11.8 93
Show 18064+5408 UC 3494 285 22.6 95
Show 18105+5217 KPP4089 336 2.6 99
Show 18091+5153 WIS 325 82 999.9 100
Show 17574+5111 ES 78 AB 130 8.1 104
Show 17574+5111 FOX9011 AC 194 31.6 104
Show 18111+5330 AG 217 238 14.4 105
Show 17551+5117 KPP2198 35 18.2 106
Show 17578+5107 DAM 686 191 6.7 107
Show 18116+5329 VBS 27 27 21.9 108
Show 18046+5111 WIS 323 193 187.4 108
Show 18061+5116 COU2514 35 0.1 109
Show 18048+5435 ES 641 64 2.1 111
Show 17480+5224 MMA 38 180 35.7 116
Show 18133+5242 A 1376 22 0.3 118
Show 18132+5228 TDT 740 9 0.7 120
Show 18109+5139 ES 642 273 7.2 121
Show 17504+5414 OL 89 173 0.8 121
Show 18134+5230 ES 644 26 9.3 122
Show 18007+5453 ES 640 77 8.4 122
Show 17473+5218 CVR 863 178 7.9 123
Show 18041+5053 COU2391 97 2.2 125
Show 18046+5053 STF2279 180 13.6 125
Show 18001+5045 KPP1193 108 9.3 126
Show 18126+5146 KPP4093 337 6.0 131

 
 
WDS 18003+5251 : COMPONENTS
 
 
  A B
B pa=265.7°
sep=2.09"
 
C pa=10.7°
sep=156.17"
pa=11.5°
sep=156.72"
 
 
18003+5251 A
 
 
Name HD 164874 Coord arcsec 2000 180018.74+525115.4 Mag 8.17 Spectral class G0 (yellow)
PmRA 32.00 PmDE 69.0 SAO 30686 HIP 88155
Tycho2 3903-01127-1 HD 164874 GC 24533 BD BD+52 2125
Tycho2
Tycho2 3903-01127-1 Pflag RAmdeg 270.07817704 DEmdeg 52.85444207
PmRA 23.3 PmDE 68.5 E RAmdeg 7 E DEmdeg 7
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.09 EpDEm 1991.26
Num 8 Q RAmdeg 2.3 Q DEmdeg 1.0 Q pmRA 2.4
Q pmDE 1.0 BTmag 8.866 E BTmag 0.018 VTmag 8.170
E VTmag 0.012 Prox 33 TYC T HIP 88155
CCDM A RAdeg 270.07808667 DEdeg 52.85428278 EpRA 1990 1.56
EpDE 1990 1.64 E RAdeg 6.7 E DEdeg 6.5 Posflg D
Corr 0.1
SAO
SAO 30686 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 0.064 Vmag 7.7 SpType G0
Double code Source 70 CatNum 24533 DM BD+52 2125
DMcomp BDsup HD 164874 M HD 0
GC 24533 RA1950rad 4.70895255 DE1950rad 0.92247073 PmRA2000 -0.0001
PmDE2000 0.065
Hipparcos
Catalog H HIP 88155 Proxy H RAhms 18 00 18.74
DEdms +52 51 15.4 Vmag 7.72 VarFlag R Vmag G
RAdeg 270.078 DEdeg 52.8543 AstroRef A Plx 17.67
CCDM 18004+5252 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 268 Rho 3.258 HD 164874 BD BD+52 2125
CD CP Dm number +52 2125 VIred 0.73
SpType G0 R SpType Coord arcsec 2000 180018.74+525115.4
Hipparcos 2
HIP 88155 Sn 15 So 3 Nc 2
RArad 4.7137518975 DErad 0.9224811901 Plx 16.55 PmRA 20.75
PmDE 68.66 E RArad 0.7 E DErad 0.72 E Plx 0.76
E pmRA 0.78 E pmDE 0.93 Hpmag 7.8543 E Hpmag 0.0015
SHp 0.013 VA 0 BV 0.666 E BV 0.015
VI 0.73
 
 
18003+5251 B
 
 
Coord arcsec 2000 180018.51+525115.2 Mag 9.24 PmRA 15.00 PmDE 69.0
Tycho2 3903-01127-2 Calc delta mag 1.07 Calc coord yes
Tycho2
Tycho2 3903-01127-2 Pflag RAmdeg 270.07669573 DEmdeg 52.85441443
PmRA 27.3 PmDE 71.7 E RAmdeg 22 E DEmdeg 16
E pmRA 3.8 E pmDE 3.7 EpRAm 1990.97 EpDEm 1991.44
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 10.166 E BTmag 0.037 VTmag 9.240
E VTmag 0.025 Prox 33 TYC HIP 88155
CCDM B RAdeg 270.07658778 DEdeg 52.85424889 EpRA 1990 1.40
EpDE 1990 1.69 E RAdeg 21.5 E DEdeg 15.6 Posflg
Corr 0.2
 
 
18003+5251 C
 
 
Coord arcsec 2000 180021.95+525348.8 Mag 12.98 PmRA -2.00 PmDE 9.0
Calc delta mag 4.81 Calc coord yes