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Doubles in session


Current system
20598+2004
STF 2739
HD 199940


Nearby doubles
25' : 20579+2009
BRT2486

32' : 20582+1942
TDT2663

35' : 20574+2010
HO 640

46' : 21005+1920
BU 1497

46' : 21014+2043
JNN 289

48' : 21023+2037
HDS2998

55' : 21008+2057
A 176

58' : 21010+1910
COU 523

60' : 20558+2027
J 606

69' : 20554+1935
UC 4329

78' : 21017+1851
UC 4363

81' : 21052+1936
HDS3005

84' : 21046+2053
AG 269

84' : 20577+1846
GWP3022

87' : 21058+1939
J 2702

88' : 20565+2118
A 2797

92' : 20536+1935
HO 597

93' : 20587+1833
RAO 444

97' : 20553+1852
KPP3364

100' : 21039+1844
BRT2489

101' : 20534+1921
J 573

103' : 20587+1823
HU 363

104' : 20558+2131
COU 727

105' : 20524+2008
HO 144

105' : 21026+2141
BU 69AB

107' : 21041+1837
KPP 546



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.

20598+2004 STF 2739 (HD 199940)

 
 
20h 59m 48.38s +20° 04' 09.3" P.A. 252.00 sep 3.3 mag 9.17,9.69 Sp F0 dist. 184.84 pc (602.95 l.y.)
 
 
Coord 2000 20598+2004 Discov num STF2739 Comp Coord arcsec 2000 20 59 48.38 +20 04 09.3
Date first 1831 Date last 2016 Obs 38
Pa first 252 Pa last 252.3 P.A. Now (θ) 252.3°
Sep first 3.2 Sep last 3.304 Sep. Now (ρ) 3.304"
Mag pri 9.17 Mag sec 9.69 delta mag (ΔM) 0.52 Spectral class F0 (yellow-white)
Pri motion ra +047 Sec motion ra +028
Pri motion dec +010 Sec motion dec +004
Notes
rPM=0.415
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 199940 Constellation Vulpecula SAO 106739 HIP 103630
Tycho2 1656-00812-1 Gaia DR2 1837550183626334848 HD 199940 GC 29304
BD BD+19 4589 Distance 184.84 Distance ly 602.95
 
 
WDS 20598+2004 STF 2739 (HD 199940) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
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
20598+2004 STF2739 1998 28 253 3.3 9.17 9.69 F0 205948.38+200409.3
20598+2004 STF2739 2008 29 253 3.3 9.17 9.69 F0 205948.38+200409.3
20598+2004 STF2739 2009 30 251 3.3 9.17 9.69 F0 205948.38+200409.3
20598+2004 STF2739 2012 33 253 3.3 9.17 9.69 F0 205948.38+200409.3
20598+2004 STF2739 2016 34 253 3.3 9.17 9.69 F0 205948.38+200409.3

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

 
 
WDS 20598+2004 STF 2739 (HD 199940) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20598+2004 STF 2739 (HD 199940) : MEASURES
 
 
No records found.

 
 
WDS 20598+2004 (HD 199940) : VIRTUAL EYEPIECE
 
 

20598+2004 STF2739A mag 9.17 Sp F0 20598+2004 STF2739B sep 3.1 P.A. 251.20 mag 9.69 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 20598+2004 (HD 199940) : ALADIN DSS IMAGE @ 20h 59m 48.38s +20° 04' 09.3"
 
 
 
 
WDS 20598+2004 STF 2739 (HD 199940) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20598+2004 STF2739 distance=0' 20579+2009 BRT2486 distance=25' 20582+1942 TDT2663 distance=32' 20574+2010 HO 640 distance=35' 21005+1920 BU 1497 distance=46' 21014+2043 JNN 289 distance=46' 21023+2037 HDS2998 distance=48' 21008+2057 A 176 distance=55' 21010+1910 COU 523 distance=58' 20558+2027 J 606 distance=60' 20554+1935 UC 4329 distance=69' 21017+1851 UC 4363 distance=78' 21052+1936 HDS3005 distance=81' 21046+2053 AG 269 distance=84' 20577+1846 GWP3022 distance=84' 21058+1939 J 2702 distance=87' 20565+2118 A 2797 distance=88' 20536+1935 HO 597 distance=92' 20587+1833 RAO 444 distance=93' 20553+1852 KPP3364 distance=97' 21039+1844 BRT2489 distance=100' 20534+1921 J 573 distance=101' 20587+1823 HU 363 distance=103' 20558+2131 COU 727 distance=104' 21026+2141 HO 599CD distance=104' 20524+2008 HO 144 distance=105' 21026+2141 BU 69AB distance=105' 21026+2141 BU 69AC distance=105' 21041+1837 KPP 546 distance=107' 21062+2106 TDT2748 distance=109' 20537+2116 J 2327BC distance=112' 20537+2116 J 2327AB distance=113' 20537+2116 KPP3429AD distance=113' 21059+2118 A 178 distance=114' 20567+1818 BPM2298 distance=116' 20517+1954 TDT2585 distance=116' 20579+1812 UC 4345 distance=116' 21057+2129 TDT2741 distance=119' 21030+2155 BRT2488 distance=119' 21085+2025 J 574 distance=124' 21061+1836 TDS1116 distance=126' 20509+1953 UC 255 distance=127' 20507+1959 ROE 16AB distance=128' 20507+1959 ROE 16AC distance=128' 21079+1851 HO 150 distance=128' 21008+1756 TDT2692 distance=129' 21013+1757 BOY 11 distance=129' 20571+1801 J 607 distance=130' 20582+1756 BPM2303 distance=131' 20570+1758 COU 427 distance=133' 20578+2214 J 1892AB distance=134' 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 20598+2004 STF2739 252 3.3
Show 20579+2009 BRT2486 165 2.9 25
Show 20582+1942 TDT2663 36 0.9 32
Show 20574+2010 HO 640 257 12.5 35
Show 21005+1920 BU 1497 337 49.3 46
Show 21014+2043 JNN 289 25 0.4 46
Show 21023+2037 HDS2998 130 0.1 48
Show 21008+2057 A 176 175 0.3 55
Show 21010+1910 COU 523 139 0.9 58
Show 20558+2027 J 606 185 2.6 60
Show 20554+1935 UC 4329 262 32.9 69
Show 21017+1851 UC 4363 216 6.4 78
Show 21052+1936 HDS3005 14 0.3 81
Show 21046+2053 AG 269 172 8.4 84
Show 20577+1846 GWP3022 108 5.7 84
Show 21058+1939 J 2702 178 5.4 87
Show 20565+2118 A 2797 237 0.1 88
Show 20536+1935 HO 597 236 10.3 92
Show 20587+1833 RAO 444 194 1.4 93
Show 20553+1852 KPP3364 154 2.7 97
Show 21039+1844 BRT2489 246 5.4 100
Show 20534+1921 J 573 186 4.2 101
Show 20587+1823 HU 363 101 0.8 103
Show 20558+2131 COU 727 353 1.1 104
Show 21026+2141 HO 599 CD 174 18.0 104
Show 20524+2008 HO 144 350 0.4 105
Show 21026+2141 BU 69 AB 6 0.4 105
Show 21026+2141 BU 69 AC 241 74.6 105
Show 21041+1837 KPP 546 61 5.1 107
Show 21062+2106 TDT2748 44 1.3 109
Show 20537+2116 J 2327 BC 175 4.4 112
Show 20537+2116 J 2327 AB 48 68.4 113
Show 20537+2116 KPP3429 AD 9 32.9 113
Show 21059+2118 A 178 64 1.0 114
Show 20567+1818 BPM2298 348 78.4 116
Show 20517+1954 TDT2585 272 0.6 116
Show 20579+1812 UC 4345 303 51.5 116
Show 21057+2129 TDT2741 289 0.7 119
Show 21030+2155 BRT2488 118 2.8 119
Show 21085+2025 J 574 47 3.1 124
Show 21061+1836 TDS1116 265 1.2 126
Show 20509+1953 UC 255 263 11.9 127
Show 20507+1959 ROE 16 AB 75 6.0 128
Show 20507+1959 ROE 16 AC 246 8.6 128
Show 21079+1851 HO 150 136 3.0 128
Show 21008+1756 TDT2692 155 0.6 129
Show 21013+1757 BOY 11 94 0.3 129
Show 20571+1801 J 607 305 3.1 130
Show 20582+1756 BPM2303 131 120.5 131
Show 20570+1758 COU 427 221 1.5 133
Show 20578+2214 J 1892 AB 41 10.5 134

 
 
WDS 20598+2004 : COMPONENTS
 
 
  A
B pa=251.2°
sep=3.12"
 
 
20598+2004 A
 
 
Componente originario normalizzato AB Name HD 199940 Coord arcsec 2000 205948.38+200409.3 Mag 9.17
Spectral class F0 (yellow-white) PmRA 47.00 PmDE 10.0 SAO 106739
HIP 103630 Tycho2 1656-00812-1 HD 199940 GC 29304
BD BD+19 4589
Tycho2
Tycho2 1656-00812-1 Pflag RAmdeg 314.95159395 DEmdeg 20.06925826
PmRA 32.7 PmDE 8.9 E RAmdeg 9 E DEmdeg 13
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.23 EpDEm 1990.28
Num 5 Q RAmdeg 1.4 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 9.480 E BTmag 0.021 VTmag 9.166
E VTmag 0.019 Prox 33 TYC T HIP 103630
CCDM A RAdeg 314.95151306 DEdeg 20.06923639 EpRA 1990 1.62
EpDE 1990 1.18 E RAdeg 9.4 E DEdeg 12.6 Posflg D
Corr 0.0
SAO
SAO 106739 DelFlag RA1950 PmRA1950 0.0027
DE1950 PmDE1950 0.001 Vmag 8.4 SpType F0
Double code Source 70 CatNum 29304 DM BD+19 4589
DMcomp BDsup HD 199940 M HD 0
GC 29304 RA1950rad 5.48700279 DE1950rad 0.34685302 PmRA2000 0.0027
PmDE2000 -0.002
Hipparcos
Catalog H HIP 103630 Proxy H RAhms 20 59 48.36
DEdms +20 04 09.3 Vmag 8.61 VarFlag R Vmag H
RAdeg 314.952 DEdeg 20.0692 AstroRef A Plx 5.6
CCDM 20598+2004 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 252 Rho 3.288 HD 199940 BD BD+19 4589
CD CP Dm number +19 4589 VIred 0.02
SpType F0 R SpType Coord arcsec 2000 205948.36+200409.3
Hipparcos 2
HIP 103630 Sn 15 So 3 Nc 2
RArad 5.4969408223 DErad 0.350274292 Plx 5.41 PmRA 28.95
PmDE 5.08 E RArad 1.03 E DErad 0.88 E Plx 1.48
E pmRA 1.3 E pmDE 0.99 Hpmag 8.6903 E Hpmag 0.0031
SHp 0.026 VA 0 BV 0.317 E BV 0.035
VI 0.37
CCDM
Ccdm 20598+2004 RComp Comp A Note1
Note2 Discov num DRAs 0.34 DDEs 9.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.9 Sp F0 PmNote *
PmRA 47 PmDE 10 Dm number +19 4589 Cat1 BD
Name2 +19 2124 Cat2 AGK2/3 HD 199940 M HD
ADS BDS A14515 M ADS BDS N IDS IDS 20552N1941A
HIC 103630
 
 
20598+2004 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205948.17+200408.3 Mag 9.69 PmRA 28.00
PmDE 4.0 Tycho2 1656-00812-2 Calc delta mag 0.52 Calc coord yes
Tycho2
Tycho2 1656-00812-2 Pflag RAmdeg 314.95065882 DEmdeg 20.06897050
PmRA 34.0 PmDE 4.9 E RAmdeg 16 E DEmdeg 21
E pmRA 1.9 E pmDE 1.9 EpRAm 1990.86 EpDEm 1989.92
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 10.244 E BTmag 0.034 VTmag 9.686
E VTmag 0.028 Prox 33 TYC T HIP 103630
CCDM B RAdeg 314.95057444 DEdeg 20.06895833 EpRA 1990 1.60
EpDE 1990 1.20 E RAdeg 16.0 E DEdeg 21.2 Posflg D
Corr 0.0
CCDM
Ccdm 20598+2004 RComp Comp B Note1
Note2 Discov num STF2739 DRAs DDEs
R dRAs Year 1831 Theta 252 Rho 3.2
Obs 11 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14515 M ADS BDS N IDS IDS 20552N1941B
HIC 103630