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Current system
17178+5227
LEP 81


Nearby doubles
39' : 17198+5152
HEB 5

42' : 17138+5246
TDT 272

71' : 17170+5337
GRV1133

72' : 17183+5338
SWI 3

80' : 17251+5312
MLR 604

80' : 17185+5346
ES 776AB

83' : 17269+5232
CVR1700

91' : 17255+5130
HU 672

92' : 17271+5153
BLL 30

93' : 17220+5351
BU 1249AB

96' : 17278+5200
UC 3346

110' : 17131+5408
STF2146AB

113' : 17075+5126
COU1921

116' : 17304+5218
BU 1090AB
Rastaban

118' : 17103+5403
SCA9002AB

119' : 17286+5122
HDS2468

123' : 17047+5250
TDT 202

125' : 17315+5222
BEM9023

127' : 17165+5433
SCA9003AB

132' : 17083+5051
ES 77AB

132' : 17322+5236
ES 777

133' : 17323+5223
FYM 652

135' : 17039+5314
STTA151AB

136' : 17118+5432
DEA 87

139' : 17053+5112
KPP4023AB

141' : 17290+5052
STF2180



Selections
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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.

17178+5227 LEP 81

 
 
17h 17m 50.42s +52° 26' 49.6" P.A. 216.00 sep 182.9 mag 8.07,14.12 Sp K2 dist. 18.33 pc (59.79 l.y.)
 
 
Coord 2000 17178+5227 Discov num LEP  81 Comp Coord arcsec 2000 17 17 50.42 +52 26 49.6
Date first 1998 Date last 2016 Obs 11
Pa first 216 Pa last 216.3 P.A. Now (θ) 216.3°
Sep first 182.7 Sep last 182.906 Sep. Now (ρ) 182.906"
Mag pri 8.07 Mag sec 14.12 delta mag (ΔM) 6.05 Spectral class K2 (yellow-orange)
Pri motion ra +018 Sec motion ra +017
Pri motion dec -196 Sec motion dec -186
Notes V (Proper motion indicates physical)
rPM=0.051 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30328 HIP 84616 Tycho2 3520-01558-1
Gaia DR2 1416124285987232256 HD 156985 BD BD+52 2045 Distance 18.33
Distance ly 59.79
 
 
WDS 17178+5227 LEP 81 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Lep2001 Hs j Lepine, S., Wallace, D., Shara, M., Moffat, A., & Niemela, V. 2001AJ....122.3407L
Lep2001 AJ 122, 3407, 2001
Lep2007 P - Lepine, S. & Bongiorno, B. 2007AJ....133..889L
Lep2007 +Ht AJ 133, 889, 2007
Lep2007 +E2 (data from LSPM catalog for cpm pairs, compiled from Tycho, 2MASS, USNO-B, etc.
Lep2007 and reduced to J2000. Measures only added for new pairs; most of these have been
Lep2007 T-coded as 2MASS astrometry was generated and added to WDS)
Lep2007b A j Lepine, S., Rich, R.M., Shara, M.M., Cruz, K.L., & Skemer, A. 2007ApJ...668..507L
Lep2007b ApJ 668, 507, 2007
Lep2008 Pa - Lepine, S. 2008AJ....135.2177L
Lep2008 AJ 135, 2177, 2008
Lep2009 C - Lepine, S., Thorstensen, J.R., Shara, M.M. & Rich, R.M. 2009AJ....137.4109L
Lep2009 AJ 137, 4109, 2009
Lep2011 - Lepine, S. 2011ASPC..448.1375L
Lep2011 ASP Conf 448, 1375, 2011 (statistical study of CPM pairs, no data)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17178+5227 LEP 81 1998 1 216 182.7 7.96 14.04 VD 171750.42+522649.6
17178+5227 LEP 81 2003 2 217 182.3 7.96 14.04 VD 171750.42+522649.6
17178+5227 LEP 81 2010 3 216 182.8 8.07 14.12 K2 V 171750.42+522649.6
17178+5227 LEP 81 2015 4 216 182.9 8.07 14.12 K2 V 171750.42+522649.6
17178+5227 LEP 81 2016 11 216 182.9 8.07 14.12 K2 V 171750.42+522649.6

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

 
 
WDS 17178+5227 LEP 81 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17178+5227 LEP 81 : MEASURES
 
 
No records found.

 
 
WDS 17178+5227 : VIRTUAL EYEPIECE
 
 

17178+5227 LEP 81A mag 8.07 Sp K2 17178+5227 LEP 81B sep 161.5 P.A. 204.10 mag 14.12 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17178+5227 : ALADIN DSS IMAGE @ 17h 17m 50.42s +52° 26' 49.6"
 
 
 
 
WDS 17178+5227 LEP 81 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17178+5227 LEP 81 distance=0' 17198+5152 HEB 5 distance=39' 17138+5246 TDT 272 distance=42' 17170+5337 GRV1133 distance=71' 17183+5338 SWI 3 distance=72' 17185+5346 ES 776BC distance=79' 17251+5312 MLR 604 distance=80' 17185+5346 ES 776AB distance=80' 17269+5232 CVR1700 distance=83' 17255+5130 HU 672 distance=91' 17271+5153 BLL 30 distance=92' 17220+5351 BU 1249AB distance=93' 17220+5351 BU 1249AB,C distance=93' 17278+5200 UC 3346 distance=96' 17131+5408 STF2146AB distance=110' 17131+5408 STF2146CD distance=110' 17131+5408 STF2146AC distance=111' 17075+5126 COU1921 distance=113' 17304+5218 BU 1090AB (Rastaban) distance=116' 17304+5218 BU 1090AC (Rastaban) distance=116' 17304+5218 FYM 654CD distance=117' 17103+5403 HDS2424Aa,Ab distance=118' 17103+5403 SCA9002AB distance=118' 17286+5122 HDS2468 distance=119' 17047+5250 TDT 202 distance=123' 17315+5222 BEM9023 distance=125' 17165+5433 SCA9003AB distance=127' 17165+5433 SCA9003AC distance=127' 17165+5433 DAM 27AD distance=127' 17083+5051 CHR 60Aa,Ab distance=132' 17083+5051 ES 77AB distance=132' 17322+5236 ES 777 distance=132' 17323+5223 FYM 652 distance=133' 17039+5314 STTA151BC distance=134' 17039+5314 MLR 603Aa,Ab distance=135' 17039+5314 STTA151AB distance=135' 17118+5432 DEA 87 distance=136' 17053+5112 KPP4023AB distance=139' 17290+5052 STF2180 distance=141' 17102+5430 STF2138AB distance=141' 17102+5430 SHY 89AC distance=141' 17277+5424 UC 3345 distance=147' 17053+5058 STE 13AB distance=147' 17053+5058 LNA 10Aa,Ab distance=147' 17237+5007 SHN 36 distance=150' 17318+5349 BEM 27 distance=150' 17086+5022 BEM 26 distance=152' 17182+4952 HU 669 distance=156' 17230+4953 BVD 249 distance=161' 17353+5210 ES 635 distance=161' 17341+5333 UC 3369 distance=162' 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 17178+5227 LEP 81 216 182.9
Show 17198+5152 HEB 5 -1 0.2 39
Show 17138+5246 TDT 272 81 0.7 42
Show 17170+5337 GRV1133 328 12.9 71
Show 17183+5338 SWI 3 180 0.5 72
Show 17185+5346 ES 776 BC 313 2.2 79
Show 17251+5312 MLR 604 96 0.8 80
Show 17185+5346 ES 776 AB 153 28.5 80
Show 17269+5232 CVR1700 262 4.7 83
Show 17255+5130 HU 672 58 4.2 91
Show 17271+5153 BLL 30 105 124.8 92
Show 17220+5351 BU 1249 AB 82 0.6 93
Show 17220+5351 BU 1249 AB,C 78 62.1 93
Show 17278+5200 UC 3346 338 6.5 96
Show 17131+5408 STF2146 AB 224 2.6 110
Show 17131+5408 STF2146 CD 225 2.8 110
Show 17131+5408 STF2146 AC 234 89.3 111
Show 17075+5126 COU1921 285 0.5 113
Show Rastaban 17304+5218 BU 1090 AB 17 4.6 116
Show Rastaban 17304+5218 BU 1090 AC 156 118.7 116
Show 17304+5218 FYM 654 CD 298 10.7 117
Show 17103+5403 HDS2424 Aa,Ab 158 0.5 118
Show 17103+5403 SCA9002 AB 84 79.5 118
Show 17286+5122 HDS2468 94 0.3 119
Show 17047+5250 TDT 202 206 2.4 123
Show 17315+5222 BEM9023 52 15.5 125
Show 17165+5433 SCA9003 AB 97 44.1 127
Show 17165+5433 SCA9003 AC 332 80.7 127
Show 17165+5433 DAM 27 AD 3 40.9 127
Show 17083+5051 CHR 60 Aa,Ab 10 0.2 132
Show 17083+5051 ES 77 AB 279 18.6 132
Show 17322+5236 ES 777 349 6.1 132
Show 17323+5223 FYM 652 353 5.2 133
Show 17039+5314 STTA151 BC 356 22.4 134
Show 17039+5314 MLR 603 Aa,Ab 347 0.4 135
Show 17039+5314 STTA151 AB 171 88.4 135
Show 17118+5432 DEA 87 129 90.2 136
Show 17053+5112 KPP4023 AB 106 1.8 139
Show 17290+5052 STF2180 260 3.0 141
Show 17102+5430 STF2138 AB 133 22.1 141
Show 17102+5430 SHY 89 AC 10 999.9 141
Show 17277+5424 UC 3345 199 26.1 147
Show 17053+5058 STE 13 AB 297 5.0 147
Show 17053+5058 LNA 10 Aa,Ab 7 0.1 147
Show 17237+5007 SHN 36 278 0.4 150
Show 17318+5349 BEM 27 205 13.0 150
Show 17086+5022 BEM 26 196 15.4 152
Show 17182+4952 HU 669 263 0.9 156
Show 17230+4953 BVD 249 108 14.2 161
Show 17353+5210 ES 635 243 5.9 161
Show 17341+5333 UC 3369 122 55.0 162

 
 
WDS 17178+5227 : COMPONENTS
 
 
  A
B pa=204.1°
sep=161.52"
 
 
17178+5227 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 171750.42+522649.6 Mag 8.07 Spectral class K2 (yellow-orange)
PmRA 18.00 PmDE -196.0 SAO 30328 HIP 84616
Tycho2 3520-01558-1 HD 156985 BD BD+52 2045
Tycho2
Tycho2 3520-01558-1 Pflag RAmdeg 259.46011210 DEmdeg 52.44711059
PmRA 19.1 PmDE -196.4 E RAmdeg 7 E DEmdeg 7
E pmRA 1.0 E pmDE 1.2 EpRAm 1990.62 EpDEm 1990.89
Num 12 Q RAmdeg 0.9 Q DEmdeg 0.9 Q pmRA 0.9
Q pmDE 0.9 BTmag 9.268 E BTmag 0.019 VTmag 8.072
E VTmag 0.012 Prox 999 TYC T HIP 84616
CCDM RAdeg 259.46003944 DEdeg 52.44756361 EpRA 1990 1.70
EpDE 1990 1.69 E RAdeg 6.6 E DEdeg 6.6 Posflg
Corr 0.0
SAO
SAO 30328 DelFlag RA1950 PmRA1950 0.0028
DE1950 PmDE1950 -0.199 Vmag 8 SpType K2
Double code Source 37 CatNum 5217 DM BD+52 2045
DMcomp BDsup HD 156985 M HD 0
GC RA1950rad 4.52345958 DE1950rad 0.91632223 PmRA2000 0.0037
PmDE2000 -0.197
Hipparcos
Catalog H HIP 84616 Proxy RAhms 17 17 50.41
DEdms +52 26 51.3 Vmag 7.93 VarFlag R Vmag H
RAdeg 259.46 DEdeg 52.4476 AstroRef Plx 53.97
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 156985 BD BD+52 2045
CD CP Dm number +52 2045 VIred 1
SpType K2 R SpType Coord arcsec 2000 171750.41+522651.3
Hipparcos 2
HIP 84616 Sn 5 So 0 Nc 1
RArad 4.5284318109 DErad 0.915383102 Plx 54.57 PmRA 16.82
PmDE -195.52 E RArad 0.49 E DErad 0.5 E Plx 0.55
E pmRA 0.57 E pmDE 0.61 Hpmag 8.0963 E Hpmag 0.0015
SHp 0.013 VA 0 BV 1.019 E BV 0.014
VI 0.99
 
 
17178+5227 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 171743.20+522422.2 Mag 14.12 PmRA 17.00
PmDE -186.0 Calc delta mag 6.05 Calc coord yes