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Doubles in session


Current system
18261+0047
BU 1203
HD 169725


Nearby doubles
18' : 18269-0036
BAL 894

25' : 18246-0058
TDT 844

33' : 18260+0119
LDS5863

38' : 18268+0123
BAL1501

40' : 18272+0012
STF2316AB

41' : 18269+0009
BAL1195

47' : 18279+0124
HDS2614

47' : 18289+0029
SHC 4

47' : 18289+0030
SHC 5

50' : 18287+0016
SHC 2

50' : 18289+0020
SHC 3

52' : 18289+0019
SHC 6

53' : 18241+0130
HJ 858

53' : 18290+0017
SHC 7

55' : 18296+0035
SKF2129

55' : 18296+0034
SHC 8

56' : 18283-0003
CHN 27

57' : 18288+0009
LI 1

59' : 18299+0036
CON 33

61' : 18227+0119
GWP2774

62' : 18241+0141
CRC 28

64' : 18300+0111
STF2321

64' : 18299+0115
HCH 8

65' : 18300+0113
HCH 9AB

65' : 18300+0112
HCH 10

65' : 18300+0114
EIR 1AB



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.

18261+0047 BU 1203 (HD 169725)

 
 
18h 26m 03.38s +00° 46' 49.7" P.A. 157.00 sep 0.5 mag 7.11,8.73 Sp A7III dist. 134.77 pc (439.62 l.y.)
 
 
Coord 2000 18261+0047 Discov num BU 1203 Comp Coord arcsec 2000 18 26 03.38 +00 46 49.7
Date first 1890 Date last 2018 Obs 100
Pa first 68 Pa last 157.3 P.A. Now (θ) 157.3°
Sep first 0.3 Sep last 0.507 Sep. Now (ρ) 0.507"
Mag pri 7.11 Mag sec 8.73 delta mag (ΔM) 1.62 Spectral class A7III (white)
Pri motion ra +017 Sec motion ra +017
Pri motion dec +008 Sec motion dec +008
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 169725 Constellation Serpens SAO 123471 HIP 90347
Tycho2 0433-00027-1 Gaia DR2 4276317590229462400 HD 169725 GC 25158
ADS 11339 BD BD+00 3931 Distance 134.77 Distance ly 439.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)495.73y Periastron (T)2315.02y Semi-major axis (a)0.5151a
Eccentricity (e)0.4634 Inclination (i)59.29° Longitude of periastron (ω)317.13°
Node (Ω)17.64° Notesn ReferencePop1996b
Equinox2000 Last observation1991 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 151.6 0.454
2001 152.0 0.456
2002 152.4 0.459
2003 152.8 0.462
2004 153.2 0.464
2005 153.6 0.467
2006 154.0 0.470
2007 154.4 0.473
2008 154.8 0.475
2009 155.2 0.478
2010 155.6 0.480
2011 155.9 0.483
2012 156.3 0.486
2013 156.7 0.488
2014 157.0 0.491
2015 157.4 0.494
2016 157.8 0.496
2017 158.1 0.499
2018 158.5 0.501
2019 158.8 0.504
2020 159.1 0.507
2021 159.5 0.509
2022 159.8 0.512
2023 160.1 0.514
2024 160.5 0.517
2025 160.8 0.519
2026 161.1 0.522
2027 161.4 0.524
2028 161.8 0.527
2029 162.1 0.529
2030 162.4 0.532


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


 
  


wds18261%2B0047a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18261+0047 BU 1203 (HD 169725) : NOTES
 
 
discov_num notes refcode
BU 1203 1980.4794 This measure was incorrectly attributed to ADS 11524 by
McAlister et al. (1983). McA1983
 
 
REFERENCES
 
 
refcode metd author reference
McA1983 Sc j McAlister, H.A., Hendry, E.M., Hartkopf, W.I., Campbell, B.G., & Fekel, F.C. 1983ApJS...51..309M
McA1983 ApJS 51, 309, 1983
Pop1996b orb - Popovic, G.M. & Pavlovic, R. 1996BOBeo.153...57P
Pop1996b Bull. Obs. Astron. Belgrade #153, 57, 1996
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18261+0047 BU 1203 2004 102 153 0.5 7.11 8.73 A7III NOD 182603.38+004649.7
18261+0047 BU 1203 2009 105 154 0.5 7.11 8.73 A7III NOD 182603.38+004649.7
18261+0047 BU 1203 2011 107 156 0.5 7.11 8.73 A7III NO 182603.38+004649.7
18261+0047 BU 1203 2018 97 158 0.5 7.11 8.73 A7III NO 182603.38+004649.7

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

 
 
WDS 18261+0047 BU 1203 (HD 169725) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18261+0047 BU 1203 (HD 169725) : MEASURES
 
 
No records found.

 
 
WDS 18261+0047 (HD 169725) : VIRTUAL EYEPIECE
 
 

18261+0047 BU 1203A mag 7.11 Sp A7III 18261+0047 BU 1203B sep 0.5 P.A. 157.30 mag 8.73 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 18261+0047 (HD 169725) : ALADIN DSS IMAGE @ 18h 26m 03.38s +00° 46' 49.7"
 
 
 
 
WDS 18261+0047 BU 1203 (HD 169725) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18261+0047 BU 1203 distance=0' 18269-0036 BAL 894 distance=18' 18246-0058 TDT 844 distance=25' 18260+0119 LDS5863 distance=33' 18268+0123 BAL1501 distance=38' 18272+0012 STF2316Aa,Ab distance=40' 18272+0012 STF2316AB distance=40' 18269+0009 BAL1195 distance=41' 18279+0124 HDS2614 distance=47' 18289+0029 SHC 4 distance=47' 18289+0030 SHC 5 distance=47' 18287+0016 SHC 2 distance=50' 18289+0020 SHC 3 distance=50' 18289+0019 SHC 6 distance=52' 18241+0130 HJ 858 distance=53' 18290+0017 SHC 7 distance=53' 18296+0035 SKF2129 distance=55' 18296+0034 SHC 8 distance=55' 18283-0003 CHN 27 distance=56' 18288+0009 LI 1 distance=57' 18299+0036 CON 33 distance=59' 18227+0119 GWP2774 distance=61' 18241+0141 CRC 28 distance=62' 18300+0111 STF2321 distance=64' 18299+0115 HCH 8 distance=64' 18300+0113 DCH 100Aa,Ab distance=65' 18300+0113 HCH 9AB distance=65' 18300+0113 DCH 98AC distance=65' 18300+0113 DCH 98Ca,Cb distance=65' 18300+0113 DCH 100Ba,Bb distance=65' 18300+0112 HCH 10 distance=65' 18300+0114 DCH 99Aa,Ab distance=65' 18300+0114 EIR 1AB distance=65' 18301+0112 HCH 11 distance=66' 18304+0043 HDO 314 distance=66' 18213-0047 RST5111 distance=73' 18310+0123 STF2324AB distance=83' 18310+0123 FOX 232AC distance=83' 18211+0140 GWP2772 distance=93' 18253+0222 BAL1966 distance=97' 18325+0036 RST5450 distance=98' 18333-0035 SKF2841 distance=110' 18210+0210 TOB 286 distance=113' 18200+0212 BAL1964 distance=124' 18197+0207 AG 219AB distance=125' 18197+0207 AG 219AC distance=125' 18197+0207 AG 219AD distance=125' 18264+0255 HEI 560 distance=128' 18349-0043 RST5119 distance=132' 18270+0258 LDS5864 distance=133' 18251+0258 BAL1965 distance=133' 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 18261+0047 BU 1203 157 0.5
Show 18269-0036 BAL 894 269 5.7 18
Show 18246-0058 TDT 844 67 0.5 25
Show 18260+0119 LDS5863 323 5.6 33
Show 18268+0123 BAL1501 321 3.0 38
Show 18272+0012 STF2316 Aa,Ab 298 0.2 40
Show 18272+0012 STF2316 AB 322 3.9 40
Show 18269+0009 BAL1195 296 8.8 41
Show 18279+0124 HDS2614 334 0.7 47
Show 18289+0029 SHC 4 243 5.5 47
Show 18289+0030 SHC 5 211 7.0 47
Show 18287+0016 SHC 2 88 5.7 50
Show 18289+0020 SHC 3 28 12.6 50
Show 18289+0019 SHC 6 242 5.3 52
Show 18241+0130 HJ 858 229 12.7 53
Show 18290+0017 SHC 7 274 6.5 53
Show 18296+0035 SKF2129 119 0.9 55
Show 18296+0034 SHC 8 123 7.1 55
Show 18283-0003 CHN 27 138 2.9 56
Show 18288+0009 LI 1 249 7.5 57
Show 18299+0036 CON 33 303 9.5 59
Show 18227+0119 GWP2774 84 18.8 61
Show 18241+0141 CRC 28 216 7.0 62
Show 18300+0111 STF2321 191 6.7 64
Show 18299+0115 HCH 8 159 4.3 64
Show 18300+0113 DCH 100 Aa,Ab 227 0.2 65
Show 18300+0113 HCH 9 AB 354 5.2 65
Show 18300+0113 DCH 98 AC 12 4.4 65
Show 18300+0113 DCH 98 Ca,Cb 92 0.1 65
Show 18300+0113 DCH 100 Ba,Bb 109 2.5 65
Show 18300+0112 HCH 10 29 1.5 65
Show 18300+0114 DCH 99 Aa,Ab 284 0.3 65
Show 18300+0114 EIR 1 AB 10 1.6 65
Show 18301+0112 HCH 11 323 6.2 66
Show 18304+0043 HDO 314 217 6.0 66
Show 18213-0047 RST5111 84 1.4 73
Show 18310+0123 STF2324 AB 148 2.4 83
Show 18310+0123 FOX 232 AC 238 37.3 83
Show 18211+0140 GWP2772 134 61.9 93
Show 18253+0222 BAL1966 247 3.9 97
Show 18325+0036 RST5450 253 0.7 98
Show 18333-0035 SKF2841 333 36.4 110
Show 18210+0210 TOB 286 332 21.2 113
Show 18200+0212 BAL1964 158 1.6 124
Show 18197+0207 AG 219 AB 34 8.7 125
Show 18197+0207 AG 219 AC 243 6.0 125
Show 18197+0207 AG 219 AD 251 57.1 125
Show 18264+0255 HEI 560 208 1.7 128
Show 18349-0043 RST5119 125 2.8 132
Show 18270+0258 LDS5864 43 67.4 133
Show 18251+0258 BAL1965 73 5.1 133

 
 
WDS 18261+0047 : COMPONENTS
 
 
  A
B pa=157.3°
sep=0.51"
 
 
18261+0047 A
 
 
Componente originario normalizzato AB Name HD 169725 Coord arcsec 2000 182603.38+004649.7 Mag 7.11
Spectral class A7III (white) PmRA 17.00 PmDE 8.0 SAO 123471
HIP 90347 Tycho2 0433-00027-1 HD 169725 GC 25158
BD BD+00 3931
Tycho2
Tycho2 0433-00027-1 Pflag RAmdeg 276.51406809 DEmdeg 0.78046913
PmRA 17.4 PmDE 7.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.17 EpDEm 1991.13
Num 16 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 7.243 E BTmag 0.016 VTmag 6.932
E VTmag 0.011 Prox 999 TYC T HIP 90347
CCDM AB RAdeg 276.51402806 DEdeg 0.78045139 EpRA 1990 1.75
EpDE 1990 1.60 E RAdeg 4.8 E DEdeg 5.1 Posflg P
Corr -0.1
SAO
SAO 123471 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 0.008 Vmag 6.9 SpType A3
Double code Source 70 CatNum 25158 DM BD+00 3931
DMcomp BDsup HD 169725 M HD 0
GC 25158 RA1950rad 4.81495738 DE1950rad 0.01309584 PmRA2000 0.0015
PmDE2000 0.008
Hipparcos
Catalog H HIP 90347 Proxy H RAhms 18 26 03.36
DEdms +00 46 49.7 Vmag 6.87 VarFlag R Vmag H
RAdeg 276.514 DEdeg 0.780481 AstroRef A Plx 7.41
CCDM 18261+0047 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 148 Rho 0.432 HD 169725 BD BD+00 3931
CD CP Dm number +00 3931 VIred 0.29
SpType A3 R SpType Coord arcsec 2000 182603.36+004649.7
Hipparcos 2
HIP 90347 Sn 15 So 3 Nc 2
RArad 4.826079788 DErad 0.0136219556 Plx 7.42 PmRA 16.05
PmDE 5.71 E RArad 0.91 E DErad 0.79 E Plx 0.98
E pmRA 1 E pmDE 0.98 Hpmag 6.939 E Hpmag 0.0026
SHp 0.011 VA 0 BV 0.277 E BV 0.011
VI 0.31
CCDM
Ccdm 18261+0047 RComp Comp A Note1
Note2 Discov num DRAs -2.57 DDEs -10.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.6 Sp A3 PmNote *
PmRA 30 PmDE 16 Dm number +00 3931 Cat1 BD
Name2 +00 2198 Cat2 AGK2/3 HD 169725 M HD
ADS BDS A11339 M ADS BDS N IDS IDS 18210N0043A
HIC 90347
 
 
18261+0047 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182603.39+004649.2 Mag 8.73 PmRA 17.00
PmDE 8.0 Calc delta mag 1.62 Calc coord yes
CCDM
Ccdm 18261+0047 RComp Comp B Note1
Note2 Discov num BU 1203 DRAs DDEs
R dRAs Year 1960 Theta 134 Rho 0.3
Obs 99 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11339 M ADS BDS N IDS IDS 18210N0043B
HIC 90347