18339+5221 A 1377 AB

 
 
18h 33m 56.69s +52° 21' 12.6" P.A. 134.00 sep 0.2 mag 6.20,6.40 Sp G9III dist. 195.69 pc (638.34 l.y.)
 
 
Coord 2000 18339+5221 Discov num A  1377 Comp AB Coord arcsec 2000 18 33 56.69 +52 21 12.6
Date first 1906 Date last 2016 Obs 202
Pa first 269 Pa last 134.4 P.A. Now (θ) 140°
Sep first 0.2 Sep last 0.244 Sep. Now (ρ) 0.24"
Mag pri 6.20 Mag sec 6.40 delta mag (ΔM) 0.2 Spectral class G9III (yellow)
Pri motion ra -008 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
18339+5221 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 31051 18 33 57 +52 21 13 A 1377 AB 2016 202 134 0.2 6.20 6.40 0.20 Y <===
Show HD 171779 31051 18 33 57 +52 21 13 STF 2348 AB,C 2012 63 271 25.7 5.50 8.65 3.15
Show 31051 18 33 57 +52 21 13 SLE 216 AB,D 2005 4 338 93.7 5.50 11.20 5.70
Show 31051 18 33 57 +52 21 13 SLE 216 AB,E 2005 3 232 109.1 5.50 12.20 6.70
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 31051 HIP 91013 Tycho2 3539-02620-1
HD 171779 HR 6983 GC 25396 ADS 11468
BD BD+52 2238 Distance 195.69 Distance ly 638.34
 
 
ORBITAL ELEMENTS
 
 
Period (P)205.891y± 6.746 Periastron (T)21156m (1916.8y)± 295 Semi-major axis (a)0.2524a± 0.0072
Eccentricity (e)0.4161± 0.0083 Inclination (i)48°± 1.4 Longitude of periastron (ω)262.4°± 2.9
Node (Ω)57.5°± 1.3 Notesn ReferenceMut2010e
Equinox2000 Last observation2008 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 114.4 0.255
2001 115.5 0.254
2002 116.5 0.253
2003 117.6 0.253
2004 118.7 0.252
2005 119.7 0.251
2006 120.8 0.250
2007 121.9 0.250
2008 123.0 0.249
2009 124.1 0.248
2010 125.2 0.248
2011 126.3 0.247
2012 127.4 0.246
2013 128.5 0.246
2014 129.6 0.245
2015 130.8 0.244
2016 131.9 0.244
2017 133.1 0.243
2018 134.2 0.243
2019 135.4 0.242
2020 136.5 0.242
2021 137.7 0.241
2022 138.9 0.241
2023 140.0 0.240
2024 141.2 0.240
2025 142.4 0.239
2026 143.6 0.239
2027 144.8 0.238
2028 146.0 0.238
2029 147.2 0.238
2030 148.4 0.237


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds18339%2B5221a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier18339+5221 A 1377 B
coord_arcsec_2000183356.69+522112.6
Period (P)2324d (6.36y)± 250 Periastron (T)53375m (2005.013y)± 21 Semi-major axis (a)0.16m± 0.048
Eccentricity (e)0 Inclination (i)66°± 21 Longitude of periastron (ω)
Node (Ω)157°± 33 Notesn ReferenceMut2010e
Equinox2000 Last observation2008 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 216.2
2001-01-01 313.4
2002-01-01 340.9
2003-01-01 19.6
2004-01-01 124.6
2005-01-01 156.7
2006-01-01 187.9
2007-01-01 292.4
2008-01-01 332.5
2009-01-01 359.5
2010-01-01 94.9
2011-01-01 148.0
2012-01-01 173.1
2013-01-01 251.6
2014-01-01 323.0
2015-01-01 347.8
2016-01-01 47.1
2017-01-01 137.0
2018-01-01 163.1
2019-01-01 207.3
2020-01-01 309.4
2021-01-01 338.8
2022-01-01 13.4
2023-01-01 119.2
2024-01-01 154.7
2025-01-01 183.5
2026-01-01 284.6
2027-01-01 330.3
2028-01-01 356.2
2029-01-01 84.1
2030-01-01 145.6


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds18339%2B5221r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 18339+5221 A 1377 AB : NOTES
 
 
discov_num notes refcode
A 1377 Mt. Wilson spectral classes A is G5, C is B8n.
AB. This appears to be part of a triple system. The elements given by
Wilson (1950) and by Baize (1958) are different, possibly due to the WRH1950b
long period of the system. This 1975.533 separation is less than that Baz1958
derived from either ephemeris but it and the position angle are closer
to Baize's values. BLM1978
2003.6: Differential astrometry by Lane & Muterspaugh (2004) was Lne2004
originally published as follows, but converted to BY, rho, and theta
by WIH for inclusion in our catalogs:
MJD dRA (arcsec) dDEC (arcsec)
52862.30085 0.222109 +/- 0.000143 -0.119309 +/- 0.00000839
52863.28229 0.222233 +/- 0.000143 -0.119302 +/- 0.0000155
52864.31096 0.222134 +/- 0.000197 -0.119323 +/- 0.0000189
52865.29921 0.221981 +/- 0.000155 -0.119361 +/- 0.0000148
AB: Additional notes may be found in Wilson (1955). WRH1955
 
 
REFERENCES
 
 
refcode metd author reference
Baz1958 orb - Baize, P. 1958JO.....41..163B
Baz1958 J. Obs. 41, 163-183, 1958
BLM1978 S j Morgan, B.L., Beddoes, D.R., Scaddan, R.J. & Dainty, J.C. 1978MNRAS.183..701M
BLM1978 MNRAS 183, 701, 1978
Lne2004 Kp j Lane, B.F. & Muterspaugh, M.W. 2004ApJ...601.1129L
Lne2004 ApJ 601, 1129, 2004
Mut2010e Kp - Muterspaugh, M.W., Lane, B.F., Kulkarni, S.R., Konacki, M., Burke, B.F., 2010AJ....140.1657M
Mut2010e +orb Colavita, M.M., Shao, M., Hartkopf, W., Boss, A.P., & Williamson, M.
Mut2010e AJ 140, 1657, 2010
WRH1950b Ma - Wilson, R.H. 1950AJ.....55..159W
WRH1950b +J AJ 55, 159, 1950
WRH1950b +orb
WRH1955 J j Wilson, R.H. 1955AJ.....60..446W
WRH1955 +Ma AJ 60, 446, 1955
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
312 SLE Soulie, G.
331 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
18339+5221 A 1377 AB 2004 142 120 0.2 6.20 6.40 G9III NOD 183356.69+522112.6
18339+5221 A 1377 AB 2006 143 121 0.3 6.20 6.40 G9III NOD 183356.69+522112.6
18339+5221 A 1377 AB 2007 144 121 0.2 6.20 6.40 G9III NOD 183356.69+522112.6
18339+5221 A 1377 AB 2008 145 123 0.2 6.20 6.40 G9III NOD 183356.69+522112.6
18339+5221 A 1377 AB 2009 200 125 0.2 6.20 6.40 G9III NOD 183356.69+522112.6
18339+5221 A 1377 AB 2011 205 127 0.2 6.20 6.40 G9III NO 183356.69+522112.6
18339+5221 A 1377 AB 2013 199 131 0.2 6.20 6.40 G9III NO 183356.69+522112.6
18339+5221 A 1377 AB 2014 200 131 0.2 6.20 6.40 G9III NO 183356.69+522112.6
18339+5221 A 1377 AB 2016 202 134 0.2 6.20 6.40 G9III NO 183356.69+522112.6

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

 
 
WDS 18339+5221 A 1377 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18339+5221 A 1377 AB : MEASURES
 
 
No records found.

 
 
WDS 18339+5221 : VIRTUAL EYEPIECE
 
 

18339+5221 A  1377A mag 6.2 Sp G9III 18339+5221 A  1377B sep 0.2 P.A. 148.00 mag 6.4 18339+5221 STF2348C sep 15.7 P.A. 272.00 mag 8.65 Sp F0 18339+5221 SLE 216D sep 89.5 P.A. 346.10 mag 11.2 18339+5221 SLE 216E sep 85.5 P.A. 217.70 mag 12.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18339+5221 : ALADIN DSS IMAGE @ 18h 33m 56.69s +52° 21' 12.6"
 
 
 
 
WDS 18339+5221 A 1377 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18339+5221  A  1377AB distance=0' 18344+5240  BEM  34 distance=19' 18345+5147  HDS2634 distance=35' 18323+5149  SLE 205 distance=36' 18339+5144  ZUC  16 distance=39' 18314+5144  SLE 194AB distance=44' 18314+5144  SLE 194AC distance=44' 18389+5221  STF2368AB distance=45' 18389+5221  STF2368AC distance=45' 18387+5243  A  1379 distance=49' 18387+5300  SLE 232 distance=59' 18298+5314  TDT 911 distance=65' 18372+5122  SLE 227 distance=67' 18319+5110  ES  784 distance=74' 18414+5150  SLE 239 distance=76' 18340+5058  ES  785AB distance=83' 18340+5058  ES  785AC distance=83' 18340+5058  ABH 102AD distance=83' 18399+5106  ES  787 distance=94' 18340+5045  ES  786 distance=97' 18383+5353  A  1378AB distance=101' 18383+5353  A  1378AB,C distance=101' 18448+5201  HU  755 distance=102' 18238+5139  ES  187AB distance=104' 18238+5139  ES  187AC distance=104' 18417+5108  HU  754 distance=104' 18259+5338  FMR 140 distance=106' 18238+5318  YSC  66 distance=109' 18221+5222  ES  648 distance=109' 18459+5228  RAO 398 distance=110' 18402+5048  COU2515 distance=110' 18244+5331  BEM  33 distance=112' 18461+5212  MLR 637 distance=112' 18265+5404  UC 3583 distance=123' 18466+5142  HU  756 distance=123' 18456+5119  KPP4119AB distance=125' 18220+5122  UC 3560 distance=126' 18221+5336  BEM  32 distance=132' 18207+5131  RAO 388 distance=133' 18277+5016  LEP 158 distance=139' 18207+5330  TDT 808 distance=139' 18495+5157  UC 3685 distance=146' 18471+5356  A  1382 distance=152' 18232+5425  HDS2600 distance=158' 18512+5210  BEM  35 distance=159' 18319+5459  TDT 929 distance=159' 18182+5337  MLR 586 distance=161' 18169+5309  CBL  76AB distance=162' 18176+5333  UC 3546 distance=165' 18516+5259  TRN   3AB distance=165' 18516+5259  LEP  90AC distance=165' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18339+5221 A 1377 AB 134 0.2
Show 18339+5221 STF2348 AB,C 271 25.7
Show 18339+5221 SLE 216 AB,D 338 93.7
Show 18339+5221 SLE 216 AB,E 232 109.1
Show 18344+5240 BEM 34 26 10.5 19
Show 18345+5147 HDS2634 351 0.1 35
Show 18323+5149 SLE 205 59 9.7 36
Show 18339+5144 ZUC 16 47 17.0 39
Show 18314+5144 SLE 194 AB 213 7.8 44
Show 18314+5144 SLE 194 AC 109 16.1 44
Show 18389+5221 STF2368 AB 321 1.9 45
Show 18389+5221 STF2368 AC 125 36.6 45
Show 18387+5243 A 1379 211 2.1 49
Show 18387+5300 SLE 232 219 14.6 59
Show 18298+5314 TDT 911 196 0.7 65
Show 18372+5122 SLE 227 228 5.7 67
Show 18319+5110 ES 784 65 7.1 74
Show 18414+5150 SLE 239 98 13.2 76
Show 18340+5058 ES 785 AB 98 9.4 83
Show 18340+5058 ES 785 AC 293 10.9 83
Show 18340+5058 ABH 102 AD 17 54.2 83
Show 18399+5106 ES 787 38 8.3 94
Show 18340+5045 ES 786 323 5.9 97
Show 18383+5353 A 1378 AB 119 0.4 101
Show 18383+5353 A 1378 AB,C 273 14.1 101
Show 18448+5201 HU 755 124 0.6 102
Show 18238+5139 ES 187 AB 206 2.5 104
Show 18238+5139 ES 187 AC 124 91.3 104
Show 18417+5108 HU 754 93 1.3 104
Show 18259+5338 FMR 140 84 16.2 106
Show 18238+5318 YSC 66 43 0.9 109
Show 18221+5222 ES 648 1 5.0 109
Show 18459+5228 RAO 398 190 2.7 110
Show 18402+5048 COU2515 276 0.3 110
Show 18244+5331 BEM 33 46 8.0 112
Show 18461+5212 MLR 637 102 0.8 112
Show 18265+5404 UC 3583 144 43.0 123
Show 18466+5142 HU 756 263 1.0 123
Show 18456+5119 KPP4119 AB 24 18.5 125
Show 18220+5122 UC 3560 292 66.1 126
Show 18221+5336 BEM 32 315 7.9 132
Show 18207+5131 RAO 388 51 0.2 133
Show 18277+5016 LEP 158 238 5.1 139
Show 18207+5330 TDT 808 271 2.2 139
Show 18495+5157 UC 3685 147 73.5 146
Show 18471+5356 A 1382 226 4.6 152
Show 18232+5425 HDS2600 21 0.1 158
Show 18512+5210 BEM 35 156 17.2 159
Show 18319+5459 TDT 929 152 2.3 159
Show 18182+5337 MLR 586 194 0.6 161
Show 18169+5309 CBL 76 AB 8 44.8 162

 
 
WDS 18339+5221 : COMPONENTS
 
 
  A B C D
B pa=148.0°
sep=0.20"
 
C pa=272.0°
sep=15.69"
pa=272.6°
sep=15.80"
 
D pa=346.1°
sep=89.48"
pa=346.1°
sep=89.67"
pa=356.2°
sep=86.53"
 
E pa=217.7°
sep=85.50"
pa=217.8°
sep=85.43"
pa=208.2°
sep=77.39"
pa=191.3°
sep=157.56"
 
 
18339+5221 A
 
 
Coord arcsec 2000 183356.69+522112.6 Mag 6.2 Spectral class G9III (yellow) PmRA -8.00
PmDE 2.0 SAO 31051 HIP 91013 Tycho2 3539-02620-1
HD 171779 HR 6983 GC 25396 BD BD+52 2238
Tycho2
Tycho2 3539-02620-1 Pflag RAmdeg 278.48622474 DEmdeg 52.35351346
PmRA -5.6 PmDE 1.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.38 EpDEm 1991.43
Num 10 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.0 BTmag 6.774 E BTmag 0.015 VTmag 5.501
E VTmag 0.009 Prox 256 TYC T HIP 91013
CCDM AB RAdeg 278.48624639 DEdeg 52.35350972 EpRA 1990 1.62
EpDE 1990 1.63 E RAdeg 3.6 E DEdeg 3.6 Posflg P
Corr 0.0
SAO
SAO 31051 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 0.008 Vmag 5.4 SpType K0
Double code Source 70 CatNum 25396 DM BD+52 2238
DMcomp BDsup HD 171779 M HD 0
GC 25396 RA1950rad 4.85554731 DE1950rad 0.91303708 PmRA2000 -0.0002
PmDE2000 0.008
Hipparcos
Catalog H HIP 91013 Proxy H RAhms 18 33 56.70
DEdms +52 21 12.6 Vmag 5.38 VarFlag R Vmag H
RAdeg 278.486 DEdeg 52.3535 AstroRef * Plx 4.1
CCDM 18339+5221 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 106 Rho 0.258 HD 171779 BD BD+52 2238
CD CP Dm number +52 2238 VIred 1.05
SpType K0III R SpType Coord arcsec 2000 183356.70+522112.6
Hipparcos 2
HIP 91013 Sn 55 So 3 Nc 2
RArad 4.860501877 DErad 0.9137411142 Plx 5.11 PmRA -4.19
PmDE 2.61 E RArad 0.39 E DErad 0.35 E Plx 0.4
E pmRA 0.49 E pmDE 0.42 Hpmag 5.5435 E Hpmag 0.0008
SHp 0.008 VA 0 BV 1.091 E BV 0.005
VI 1.05
CCDM
Ccdm 18339+5221 RComp Comp A Note1
Note2 Discov num DRAs 2.59 DDEs 12.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.2 Sp K0 PmNote *
PmRA -25 PmDE -4 Dm number +52 2238 Cat1 BD
Name2 +52 1209 Cat2 AGK2/3 HD 171779 M HD
ADS BDS A11468 M ADS BDS N IDS IDS 18317N5216A
HIC 91013
 
 
18339+5221 B
 
 
Coord arcsec 2000 183356.70+522112.4 Mag 6.4 Calc delta mag 0.2 Calc coord yes
CCDM
Ccdm 18339+5221 RComp Comp B Note1 *
Note2 Discov num A 1377 DRAs DDEs
R dRAs Year 1906 Theta Rho
Obs 99 Vmag 6.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11468 M ADS BDS N IDS IDS 18317N5216B
HIC 91013
 
 
18339+5221 C
 
 
Coord arcsec 2000 183354.98+522113.1 Mag 8.65 Spectral class F0 (yellow-white) PmRA -7.00
PmDE 1.0 Calc delta mag 2.45 Calc coord yes
CCDM
Ccdm 18339+5221 RComp Comp C Note1
Note2 Discov num STF2348 DRAs -0.10 DDEs 11.6
R dRAs 10 Year 1832 Theta 272 Rho 25.7
Obs 17 Vmag 8.8 Sp F0 PmNote *
PmRA -10 PmDE -23 Dm number +52 2237 Cat1 BD
Name2 +52 1208 Cat2 AGK2/3 HD 234678 M HD
ADS BDS A11468 M ADS BDS N N IDS IDS 18317N5216C
HIC
 
 
18339+5221 D
 
 
Coord arcsec 2000 183354.35+522239.5 Mag 11.2 PmRA -29.00 PmDE 29.0
Calc delta mag 5 Calc coord yes
 
 
18339+5221 E
 
 
Coord arcsec 2000 183350.98+522005.0 Mag 12.2 PmRA -3.00 PmDE 1.0
Calc delta mag 6 Calc coord yes