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Current system
21492+5031
STF 2832 AB
HD 207661


Nearby doubles
7' : 21487+5035
ES 1105AB

13' : 21495+5019
TDT3180

20' : 21511+5023
HU 694

21' : 21511+5040
ES 827

24' : 21511+5047
TDT3191

37' : 21526+5013
ES 1175

38' : 21524+5054
TDT3210

40' : 21494+5110
AZC 182AB

49' : 21443+5024
TDT3128

52' : 21439+5034
HU 693

57' : 21549+5046
TDT3236

57' : 21495+5127
GII 19

58' : 21552+5030
BLL 56

61' : 21502+5131
COU2655

63' : 21554+5052
TDT3244

64' : 21433+5100
BU 374

65' : 21429+5053
COU2548

66' : 21486+5136
HLD 48

66' : 21558+5052
COU2656

72' : 21417+5026
HJ 1684

74' : 21415+5035
COU2444

75' : 21448+4931
ARG 43AB

76' : 21536+5132
ES 828

77' : 21468+4919
MIU 3

77' : 21573+5029
HDS3120

79' : 21552+4938
RAO 467



Selections
Full WDS
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.

21492+5031 STF 2832 AB (HD 207661)

 
 
21h 49m 14.48s +50° 30' 54.2" P.A. 213.00 sep 13.2 mag 7.77,8.32 Sp B9IV dist. 152.44 pc (497.26 l.y.)
 
 
Coord 2000 21492+5031 Discov num STF2832 Comp AB Coord arcsec 2000 21 49 14.48 +50 30 54.2
Date first 1828 Date last 2019 Obs 37
Pa first 212 Pa last 212.9 P.A. Now (θ) 212.9°
Sep first 13.0 Sep last 13.21 Sep. Now (ρ) 13.21"
Mag pri 7.77 Mag sec 8.32 delta mag (ΔM) 0.55 Spectral class B9IV (blue-white)
Pri motion ra +007 Sec motion ra +007
Pri motion dec +002 Sec motion dec +002
Notes V (Proper motion indicates physical)
This double is physical.
 
 
21492+5031 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 207661 33781 21 49 14 +50 30 54 STF 2832 AB 2019 37 213 13.2 7.77 8.32 0.55 <===
Show 21 49 14 +50 30 54 STF 2832 AC 2018 15 321 45.8 7.77 11.00 3.23
Show 21 49 14 +50 30 54 CTT 10 AD 2018 10 104 125.2 7.77 11.37 3.60
Show 33781 21 49 14 +50 30 43 STF 2832 BC 2018 15 335 51.5 8.32 11.00 2.68
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 207661 Constellation Cygnus SAO 33781 HIP 107718
Tycho2 3612-03061-1 Gaia DR2 1980519616178408320 HD 207661 BD BD+49 3632
Distance 152.44 Distance ly 497.26
 
 
WDS 21492+5031 STF 2832 AB (HD 207661) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ctt1995 Tm - Courtot, J.-F. 1995O&T....44...22C
Ctt1995 Obs. et Travaux 44, 22, 1995
Ctt1996 Mb - Courtot, J.-F. 1996O&T....47...47C
Ctt1996 +Tm Obs. et Travaux 47/48, 47, 1996
Ctt1998 Mb - Courtot, J.-F. ...................
Ctt1998 Webb Soc., Double Star Circ. 7, 1998
Ctt2000 Mb - Courtot, J.-F. ...................
Ctt2000 Webb Soc., Double Star Circ. 8, 2000
Ctt2001 Mb - Courtot, J.-F. ...................
Ctt2001 Webb Soc., Double Star Circ. 9, 2001
Ctt2002 Mb - Courtot, J.-F. ...................
Ctt2002 Webb Soc., Double Star Circ. 10, 2002
Ctt2003 Mb - Courtot, J.-F. ...................
Ctt2003 Webb Soc., Double Star Circ. 11, 2003
Ctt2003b Mb j Courtot, J.-F. ...................
Ctt2003b OAG Gen. Cat. 10,000 vis. double star meas. 1970-2003 (J2000.0), 2003
Ctt2004 Mb - Courtot, J.-F. ...................
Ctt2004 Webb Soc., Double Star Circ. 12, 2004
Ctt2008 Ma w Courtot, J.-F. ...................
Ctt2008 Webb Soc., Double Star Circ. 16, 2008
Ctt2009 Mb w Courtot, J.-F. ...................
Ctt2009 Webb Soc., Double Star Circ. 17, 2009
Ctt2010 Mb u Courtot, J.-F. ...................
Ctt2010 Webb Soc., Double Star Circ. 18, 5, 2010
Ctt2012 Mb u Courtot, J.-F. ...................
Ctt2012 +Ma Webb Soc., Double Star Circ. 20, 5, 2012
Ctt2013 Mb u Courtot, J.-F. ...................
Ctt2013 Webb Soc., Double Star Circ. 21, 4, 2013
Ctt2015 Mb u Courtot, J.-F. ...................
Ctt2015 Webb Soc., Double Star Circ. 23, 6, 2015
Ctt2016 Mb u Courtot, J.-F. ...................
Ctt2016 Webb Soc., Double Star Circ. 24, 6, 2016
Ctt2017 Mb u Courtot, J.-F. ...................
Ctt2017 Webb Soc., Double Star Circ. 25, 16, 2017
Ctt2018 Mb j Courtot, J.-F. ...................
Ctt2018 Webb Soc., Double Star Circ. 26, 9, 2018
Ctt2019 Mb j Courtot, J.-F. ...................
Ctt2019 Webb Soc., Double Star Circ. 27, 5, 2019
Ctt2020 Mb+ j Courtot, J.-F. .
Ctt2020 +Hg Webb Soc., Double Star Circ. 28, 4, 2020
Ctt2021 Mb j Courtot, J.-F. .
Ctt2021 Webb Soc., Double Star Circ. 29, 1, 2021
Ctt2022 Mb j Courtot, J.-F. .
Ctt2022 Webb Soc., Double Star Circ. 30, 1, 2022
Ctt2023 Mb j Courtot, J.-F. .
Ctt2023 Webb Soc., Double Star Circ. 31, 1, 2023
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21492+5031 STF2832 AB 2004 29 213 13.3 7.77 8.32 B9IV ZD 214914.48+503054.2
21492+5031 STF2832 AB 2010 32 212 13.0 7.77 8.32 B9IV Z 214914.48+503054.2
21492+5031 STF2832 AB 2016 31 212 13.1 7.77 8.32 B9IV Z 214914.48+503054.2
21492+5031 STF2832 AB 2018 36 213 13.0 7.77 8.32 B9IV V 214914.48+503054.2
21492+5031 STF2832 AB 2019 37 213 13.2 7.77 8.32 B9IV V 214914.48+503054.2

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

 
 
WDS 21492+5031 STF 2832 AB (HD 207661) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/09/21 Daedalus1 mean difficulty separated 213   Non descript, white stars. Primary seems somewhat brighter, otherwise pretty evenly matched.

 
 
WDS 21492+5031 STF 2832 AB (HD 207661) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/09/21 Daedalus1 mean difficulty 13.06 0.06 213.00 0.00 0.55 12 Seeing: Pickering 6, good.
 
 
WDS 21492+5031 (HD 207661) : VIRTUAL EYEPIECE
 
 

21492+5031 STF2832A mag 7.77 Sp B9IV 21492+5031 STF2832B sep 13.1 P.A. 212.70 mag 8.32 Sp A0 21492+5031 STF2832C sep 39.9 P.A. 332.60 mag 11 21492+5031 CTT 10D sep 82.8 P.A. 110.80 mag 11.37 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 21492+5031 (HD 207661) : ALADIN DSS IMAGE @ 21h 49m 14.48s +50° 30' 54.2"
 
 
 
 
WDS 21492+5031 STF 2832 AB (HD 207661) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21492+5031 STF2832AB distance=0' 21492+5031 STF2832BC distance=1' 21487+5035 ES 1105AB distance=7' 21487+5035 ES 1105AC distance=7' 21495+5019 TDT3180 distance=13' 21511+5023 HU 694 distance=20' 21511+5040 ES 827 distance=21' 21511+5047 TDT3191 distance=24' 21526+5013 ES 1175 distance=37' 21524+5054 TDT3210 distance=38' 21494+5110 AZC 182AB distance=40' 21443+5024 TDT3128 distance=49' 21439+5034 HU 693 distance=52' 21549+5046 TDT3236 distance=57' 21495+5127 GII 19 distance=57' 21552+5030 BLL 56 distance=58' 21502+5131 COU2655 distance=61' 21554+5052 TDT3244 distance=63' 21433+5100 BU 374 distance=64' 21429+5053 COU2548 distance=65' 21486+5136 HLD 48 distance=66' 21558+5052 COU2656 distance=66' 21417+5026 HJ 1684 distance=72' 21448+4931 ARG 43BC distance=74' 21415+5035 COU2444 distance=74' 21448+4931 ARG 43AB distance=75' 21536+5132 ES 828 distance=76' 21468+4919 MIU 3 distance=77' 21573+5029 HDS3120 distance=77' 21552+4938 RAO 467 distance=79' 21534+4921 ES 524AB distance=81' 21534+4921 ES 524BC distance=82' 21496+4908 DAM 297 distance=84' 21515+4910 ES 9008 distance=84' 21506+4908 ES 826 distance=85' 21404+5029 ES 1104AB distance=85' 21404+5029 ES 1104AC distance=85' 21481+5156 TDT3161 distance=86' 21526+4909 COU2445 distance=88' 21543+5145 KPP4256AB distance=89' 21399+5039 ES 1103 distance=90' 21547+4916 ES 525 distance=92' 21396+5025 TDT3087 distance=92' 21497+4857 ES 9011 distance=94' 21568+5132 TDT3253 distance=95' 21514+4857 ES 9007 distance=97' 21576+4938 HU 772 distance=97' 21595+5037 HJ 1710 distance=99' 21415+4926 KPP4243 distance=100' 21491+4852 DAM 296 distance=100' 21596+5025 ES 830 distance=100' 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 21492+5031 STF2832 AB 213 13.2
Show 21492+5031 CTT 10 AD 104 125.2
Show 21492+5031 STF2832 AC 321 45.8
Show 21492+5031 STF2832 BC 335 51.5 1
Show 21487+5035 ES 1105 AB 298 7.8 7
Show 21487+5035 ES 1105 AC 96 9.8 7
Show 21495+5019 TDT3180 67 1.9 13
Show 21511+5023 HU 694 192 1.6 20
Show 21511+5040 ES 827 242 3.1 21
Show 21511+5047 TDT3191 221 2.1 24
Show 21526+5013 ES 1175 211 9.9 37
Show 21524+5054 TDT3210 342 0.7 38
Show 21494+5110 AZC 182 AB 354 57.1 40
Show 21443+5024 TDT3128 198 1.7 49
Show 21439+5034 HU 693 232 1.1 52
Show 21549+5046 TDT3236 232 0.5 57
Show 21495+5127 GII 19 339 5.8 57
Show 21552+5030 BLL 56 257 84.4 58
Show 21502+5131 COU2655 250 0.3 61
Show 21554+5052 TDT3244 122 0.6 63
Show 21433+5100 BU 374 138 1.8 64
Show 21429+5053 COU2548 167 1.0 65
Show 21486+5136 HLD 48 22 4.6 66
Show 21558+5052 COU2656 65 1.1 66
Show 21417+5026 HJ 1684 319 10.8 72
Show 21448+4931 ARG 43 BC 91 6.9 74
Show 21415+5035 COU2444 340 0.6 74
Show 21448+4931 ARG 43 AB 20 29.2 75
Show 21536+5132 ES 828 92 7.7 76
Show 21468+4919 MIU 3 129 0.1 77
Show 21573+5029 HDS3120 190 0.9 77
Show 21552+4938 RAO 467 204 3.4 79
Show 21534+4921 ES 524 AB 188 20.9 81
Show 21534+4921 ES 524 BC 3 4.7 82
Show 21496+4908 DAM 297 170 8.4 84
Show 21515+4910 ES 9008 120 7.5 84
Show 21506+4908 ES 826 129 4.0 85
Show 21404+5029 ES 1104 AB 347 3.3 85
Show 21404+5029 ES 1104 AC 225 13.8 85
Show 21481+5156 TDT3161 223 2.5 86
Show 21526+4909 COU2445 18 1.4 88
Show 21543+5145 KPP4256 AB 45 2.0 89
Show 21399+5039 ES 1103 240 6.6 90
Show 21547+4916 ES 525 123 5.3 92
Show 21396+5025 TDT3087 126 1.9 92
Show 21497+4857 ES 9011 216 5.5 94
Show 21568+5132 TDT3253 348 0.7 95
Show 21514+4857 ES 9007 102 6.7 97
Show 21576+4938 HU 772 333 0.3 97
Show 21595+5037 HJ 1710 284 12.2 99
Show 21415+4926 KPP4243 321 1.6 100

 
 
WDS 21492+5031 : COMPONENTS
 
 
  A B C
B pa=212.7°
sep=13.07"
 
C pa=332.6°
sep=39.94"
pa=346.3°
sep=47.81"
 
D pa=110.8°
sep=82.78"
pa=102.3°
sep=86.42"
pa=124.1°
sep=115.66"
 
 
21492+5031 A
 
 
Name HD 207661 Coord arcsec 2000 214914.48+503054.2 Mag 7.77 Spectral class B9IV (blue-white)
PmRA 7.00 PmDE 2.0 HIP 107718 Tycho2 3612-03061-1
BD BD+49 3632
Tycho2
Tycho2 3612-03061-1 Pflag RAmdeg 327.31035386 DEmdeg 50.51507500
PmRA 5.1 PmDE 0.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.0 E pmDE 1.2 EpRAm 1991.27 EpDEm 1991.37
Num 12 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.2 BTmag 7.795 E BTmag 0.015 VTmag 7.768
E VTmag 0.011 Prox 131 TYC T HIP 107718
CCDM A RAdeg 327.31033528 DEdeg 50.51507500 EpRA 1990 1.66
EpDE 1990 1.68 E RAdeg 4.5 E DEdeg 4.8 Posflg
Corr 0.2
Hipparcos
Catalog H HIP 107718 Proxy RAhms 21 49 14.48
DEdms +50 30 54.3 Vmag 7.74 VarFlag R Vmag H
RAdeg 327.31 DEdeg 50.5151 AstroRef A Plx 5.07
CCDM 21492+5031 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 207661 BD BD+49 3632
CD CP Dm number +49 3632 VIred 0.05
SpType A0 R SpType Coord arcsec 2000 214914.48+503054.3
Hipparcos 2
HIP 107718 Sn 95 So 3 Nc 1
RArad 5.7126428871 DErad 0.8816544182 Plx 6.56 PmRA 4
PmDE -1.6 E RArad 1.27 E DErad 1.71 E Plx 1.96
E pmRA 1.59 E pmDE 1.91 Hpmag 7.764 E Hpmag 0.0109
SHp 0.08 VA 0 BV 0.062 E BV 0.011
VI 0.07
CCDM
Ccdm 21492+5031 RComp Comp A Note1
Note2 Discov num DRAs 2.43 DDEs -5.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.8 Sp A0 PmNote *
PmRA -4 PmDE 20 Dm number +49 3632 Cat1 BD
Name2 +50 1699 Cat2 AGK2/3 HD 207661 M HD
ADS BDS A15355 M ADS BDS N IDS IDS 21456N5002A
HIC 107718
 
 
21492+5031 B
 
 
Coord arcsec 2000 214913.74+503043.2 Coord calc 214913.74+503043.2 Mag 8.32 Spectral class A0 (white)
PmRA 8.00 PmDE 1.0 SAO 33781 HIP 107717
Tycho2 3612-03063-1 HD 207661 GC 30561 DM BD+49 3632
Calc delta mag 0.55
Tycho2
Tycho2 3612-03063-1 Pflag RAmdeg 327.30728065 DEmdeg 50.51200568
PmRA 7.9 PmDE 1.2 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.26 EpDEm 1991.30
Num 9 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 8.355 E BTmag 0.016 VTmag 8.324
E VTmag 0.012 Prox 131 TYC T HIP 107717
CCDM B RAdeg 327.30725167 DEdeg 50.51200278 EpRA 1990 1.66
EpDE 1990 1.67 E RAdeg 5.7 E DEdeg 6.0 Posflg
Corr 0.2
SAO
SAO 33781 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 0.013 Vmag 7.8 SpType A0
Double code Source 70 CatNum 30561 DM BD+49 3632
DMcomp B BDsup HD 207661 M HD 0
GC 30561 RA1950rad 5.70464966 DE1950rad 0.87757736 PmRA2000 0.0013
PmDE2000 0.01
Hipparcos
Catalog H HIP 107717 Proxy RAhms 21 49 13.74
DEdms +50 30 43.2 Vmag 8.31 VarFlag R Vmag H
RAdeg 327.307 DEdeg 50.512 AstroRef B Plx 4.73
CCDM 21492+5031 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD 207661 BD
CD CP Dm number VIred 0.06
SpType A0 R SpType Coord arcsec 2000 214913.74+503043.2
Hipparcos 2
HIP 107717 Sn 95 So 3 Nc 1
RArad 5.7125894345 DErad 0.8816006891 Plx 5.18 PmRA 0.43
PmDE 0.57 E RArad 1.82 E DErad 2.41 E Plx 2.68
E pmRA 2.38 E pmDE 2.69 Hpmag 8.3556 E Hpmag 0.0154
SHp 0 VA 0 BV 0.053 E BV 0.017
VI 0.07
CCDM
Ccdm 21492+5031 RComp Comp B Note1
Note2 Discov num STF2832 DRAs 1.76 DDEs -17.0
R dRAs 10 Year 1832 Theta 213 Rho 13.1
Obs 7 Vmag 8.3 Sp PmNote *
PmRA 5 PmDE 4 Dm number Cat1
Name2 +50 1698 Cat2 AGK2/3 HD M HD
ADS BDS A15355 M ADS BDS N IDS IDS 21456N5002B
HIC 107717
 
 
21492+5031 C
 
 
Coord arcsec 2000 214912.55+503129.7 Mag 11 PmRA 12.00 PmDE 9.0
Calc delta mag 3.23 Calc coord yes
CCDM
Ccdm 21492+5031 RComp Comp C Note1
Note2 Discov num STF2832 DRAs DDEs
R dRAs Year 1912 Theta 319 Rho 45.9
Obs 1 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15355 M ADS BDS N IDS IDS 21456N5002C
HIC
 
 
21492+5031 D
 
 
Coord arcsec 2000 214922.59+503024.8 Mag 11.37 PmRA -1.00 PmDE -7.0
Calc delta mag 3.6 Calc coord yes