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Current system
16550+2544
STF 2110
56 Her


Nearby doubles
16' : 16539+2547
COU 492

24' : 16569+2541
LDS 986

41' : 16521+2550
KPP1116

49' : 16582+2520
STT 320

65' : 16529+2446
CVR 847

72' : 16586+2637
TDS 846

73' : 16546+2432
AG 207

74' : 16599+2510
TDT 171

81' : 16582+2652
CBL 511

91' : 16574+2709
CFN 13

92' : 16486+2516
COU 491

93' : 16558+2716
CVR 853

96' : 16493+2450
TDT 102

99' : 16501+2432
POU3249

100' : 16528+2409
TDT 126

101' : 16476+2538
WEI 31AB

104' : 16476+2520
TDT 89

105' : 16564+2402
POU3252

105' : 16475+2520
KPP3309

108' : 16471+2548
TDT 83

113' : 16568+2734
BRT 172

113' : 16577+2358
SKF2730

116' : 16486+2700
TDT 99

118' : 16566+2349
POU3254

122' : 16521+2349
POU3250

122' : 17031+2640
TDT 190



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

16550+2544 STF 2110 (56 Her)

 
 
16h 55m 02.15s +25° 43' 50.6" P.A. 92.00 sep 18.0 mag 6.10,10.80 Sp G8III dist. 136.8 pc (446.24 l.y.)
 
 
Coord 2000 16550+2544 Discov num STF2110 Comp Coord arcsec 2000 16 55 02.15 +25 43 50.6
Date first 1838 Date last 2020 Obs 30
Pa first 96 Pa last 91.6 P.A. Now (θ) 91.6°
Sep first 15.0 Sep last 17.98 Sep. Now (ρ) 17.98"
Mag pri 6.10 Mag sec 10.80 delta mag (ΔM) 4.7 Spectral class G8III (yellow)
Pri motion ra +018 Sec motion ra
Pri motion dec -021 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 56 Her Constellation Hercules SAO 84692 HIP 82780
Tycho2 2063-01212-1 Gaia DR2 1306215557487643776 HD 152863 HR 6292
GC 22810 ADS 10259 BD BD+25 3156 Flamsteed 56 Herculis
Flamsteed name 56 Her Distance 136.8 Distance ly 446.24
 
 
WDS 16550+2544 STF 2110 (56 Her) : NOTES
 
 
discov_num notes refcode
STF2110 56 Her. A is a spectroscopic binary.
 
 
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
16550+2544 STF2110 2000 22 91 18.0 6.10 10.80 G8III N D 165502.15+254350.6
16550+2544 STF2110 2006 23 92 18.1 6.10 10.80 G8III N D 165502.15+254350.6
16550+2544 STF2110 2010 24 92 18.1 6.10 10.80 G8III N D 165502.15+254350.6
16550+2544 STF2110 2015 25 92 17.9 6.10 10.80 G8III N 165502.15+254350.6
16550+2544 STF2110 2020 29 92 18.0 6.10 10.80 G8III N 165502.15+254350.6

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

 
 
WDS 16550+2544 STF 2110 (56 Her) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16550+2544 STF 2110 (56 Her) : MEASURES
 
 
No records found.

 
 
WDS 16550+2544 (56 Her) : VIRTUAL EYEPIECE
 
 

16550+2544 STF2110A mag 6.1 Sp G8III 16550+2544 STF2110B sep 16.2 P.A. 91.80 mag 10.8 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 16550+2544 (56 Her) : ALADIN DSS IMAGE @ 16h 55m 02.15s +25° 43' 50.6"
 
 
 
 
WDS 16550+2544 STF 2110 (56 Her) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16550+2544 STF2110 distance=0' 16539+2547 COU 492 distance=16' 16569+2541 LDS 986 distance=24' 16521+2550 KPP1116 distance=41' 16582+2520 STT 320 distance=49' 16529+2446 CVR 847 distance=65' 16586+2637 TDS 846 distance=72' 16546+2432 AG 207 distance=73' 16599+2510 TDT 171 distance=74' 16582+2652 CBL 511 distance=81' 16574+2709 CFN 13 distance=91' 16486+2516 COU 491 distance=92' 16558+2716 CVR 853 distance=93' 16493+2450 TDT 102 distance=96' 16501+2432 POU3249 distance=99' 16528+2409 TDT 126 distance=100' 16476+2538 WEI 31AB distance=101' 16476+2538 WEI 31AC distance=101' 16476+2538 WEI 31BC distance=101' 16476+2520 TDT 89 distance=104' 16564+2402 POU3252 distance=105' 16475+2520 KPP3309 distance=105' 16471+2548 TDT 83 distance=108' 16568+2734 BRT 172 distance=113' 16577+2358 SKF2730 distance=113' 16486+2700 TDT 99 distance=116' 16566+2349 POU3254 distance=118' 16521+2349 POU3250 distance=122' 17031+2640 TDT 190 distance=122' 16585+2351 TDT 163 distance=123' 16501+2358 POU3248 distance=127' 16565+2339 POU3253 distance=127' 16469+2701 A 227 distance=134' 16510+2747 NSN 59 distance=136' 16463+2438 AG 351 distance=137' 16452+2619 TDT 69 distance=138' 16468+2705 TDT 82 distance=138' 17004+2345 CVR 193 distance=140' 17053+2531 TDT 205 distance=140' 17036+2704 TDT 194 distance=140' 16555+2322 HO 409 distance=143' 17037+2425 TDT 195 distance=143' 17059+2606 LDS4721 distance=148' 16453+2435 HDS2376 distance=149' 17044+2418 TDT 198AB distance=154' 16464+2400 LDS4693 distance=157' 16505+2320 KPP4015AB distance=157' 17024+2343 HO 411AB distance=158' 17024+2343 HO 411AC distance=158' 16440+2453 TDT 56 distance=159' 17063+2631 A 228 distance=159' 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 16550+2544 STF2110 92 18.0
Show 16539+2547 COU 492 92 0.5 16
Show 16569+2541 LDS 986 266 8.5 24
Show 16521+2550 KPP1116 99 8.8 41
Show 16582+2520 STT 320 252 5.8 49
Show 16529+2446 CVR 847 105 18.4 65
Show 16586+2637 TDS 846 76 1.3 72
Show 16546+2432 AG 207 215 2.9 73
Show 16599+2510 TDT 171 3 0.4 74
Show 16582+2652 CBL 511 273 18.4 81
Show 16574+2709 CFN 13 118 1.0 91
Show 16486+2516 COU 491 43 0.8 92
Show 16558+2716 CVR 853 232 17.9 93
Show 16493+2450 TDT 102 211 0.5 96
Show 16501+2432 POU3249 9 7.9 99
Show 16528+2409 TDT 126 175 1.8 100
Show 16476+2538 WEI 31 AB 317 5.0 101
Show 16476+2538 WEI 31 AC 260 31.1 101
Show 16476+2538 WEI 31 BC 251 28.7 101
Show 16476+2520 TDT 89 109 0.5 104
Show 16564+2402 POU3252 14 13.6 105
Show 16475+2520 KPP3309 296 12.4 105
Show 16471+2548 TDT 83 107 0.5 108
Show 16568+2734 BRT 172 217 4.7 113
Show 16577+2358 SKF2730 48 1.3 113
Show 16486+2700 TDT 99 38 0.5 116
Show 16566+2349 POU3254 73 12.7 118
Show 16521+2349 POU3250 54 16.6 122
Show 17031+2640 TDT 190 69 0.7 122
Show 16585+2351 TDT 163 276 1.2 123
Show 16501+2358 POU3248 348 11.7 127
Show 16565+2339 POU3253 217 3.5 127
Show 16469+2701 A 227 236 2.1 134
Show 16510+2747 NSN 59 44 21.0 136
Show 16463+2438 AG 351 303 3.0 137
Show 16452+2619 TDT 69 62 0.8 138
Show 16468+2705 TDT 82 356 0.6 138
Show 17004+2345 CVR 193 259 18.0 140
Show 17053+2531 TDT 205 77 0.5 140
Show 17036+2704 TDT 194 180 0.5 140
Show 16555+2322 HO 409 17 8.7 143
Show 17037+2425 TDT 195 224 0.4 143
Show 17059+2606 LDS4721 359 19.1 148
Show 16453+2435 HDS2376 253 0.7 149
Show 17044+2418 TDT 198 AB 33 0.6 154
Show 16464+2400 LDS4693 292 36.8 157
Show 16505+2320 KPP4015 AB 114 2.4 157
Show 17024+2343 HO 411 AB 263 2.2 158
Show 17024+2343 HO 411 AC 14 50.2 158
Show 16440+2453 TDT 56 259 1.5 159
Show 17063+2631 A 228 6 0.6 159

 
 
WDS 16550+2544 : COMPONENTS
 
 
  A
B pa=91.8°
sep=16.20"
 
 
16550+2544 A
 
 
Componente originario normalizzato AB Name 56 Her Coord arcsec 2000 165502.15+254350.6 Mag 6.1
Spectral class G8III (yellow) PmRA 18.00 PmDE -21.0 SAO 84692
HIP 82780 Tycho2 2063-01212-1 HD 152863 HR 6292
GC 22810 ADS 10259 BD BD+25 3156 Flamsteed 56 Herculis
Flamsteed name 56 Her
Tycho2
Tycho2 2063-01212-1 Pflag RAmdeg 253.75900624 DEmdeg 25.73068105
PmRA 19.3 PmDE -19.1 E RAmdeg 4 E DEmdeg 3
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.33 EpDEm 1991.60
Num 14 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.7
Q pmDE 0.9 BTmag 7.230 E BTmag 0.014 VTmag 6.167
E VTmag 0.009 Prox 999 TYC T HIP 82780
CCDM RAdeg 253.75895611 DEdeg 25.73072472 EpRA 1990 1.62
EpDE 1990 1.76 E RAdeg 3.6 E DEdeg 3.3 Posflg
Corr -0.1
SAO
SAO 84692 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.022 Vmag 6.3 SpType K0
Double code Source 70 CatNum 22810 DM BD+25 3156
DMcomp BDsup HD 152863 M HD 0
GC 22810 RA1950rad 4.41998923 DE1950rad 0.45046872 PmRA2000 0.001
PmDE2000 -0.021
Hipparcos
Catalog H HIP 82780 Proxy RAhms 16 55 02.15
DEdms +25 43 50.6 Vmag 6.06 VarFlag R Vmag H
RAdeg 253.759 DEdeg 25.7307 AstroRef Plx 7.14
CCDM 16550+2544 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 152863 BD BD+25 3156
CD CP Dm number +25 3156 VIred 0.92
SpType G5III R SpType Coord arcsec 2000 165502.15+254350.6
Hipparcos 2
HIP 82780 Sn 5 So 0 Nc 1
RArad 4.4289292589 DErad 0.4490859234 Plx 7.31 PmRA 19.39
PmDE -18.19 E RArad 0.21 E DErad 0.29 E Plx 0.42
E pmRA 0.25 E pmDE 0.35 Hpmag 6.2232 E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.921 E BV 0.006
VI 0.92
CCDM
Ccdm 16550+2544 RComp Comp A Note1
Note2 Discov num DRAs 2.13 DDEs -9.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.3 Sp K0 PmNote *
PmRA -4 PmDE -25 Dm number +25 3156 Cat1 BD
Name2 +25 1708 Cat2 AGK2/3 HD 152863 M HD
ADS BDS A10259 M ADS BDS N IDS IDS 16510N2554A
HIC 82780
 
 
16550+2544 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 165503.35+254350.1 Mag 10.8 Calc delta mag 4.7
Calc coord yes
CCDM
Ccdm 16550+2544 RComp Comp B Note1
Note2 Discov num STF2110 DRAs 3.45 DDEs -10.2
R dRAs 90 Year 1841 Theta 093 Rho 18.1
Obs 9 Vmag 10.8 Sp PmNote *
PmRA -4 PmDE -21 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10259 M ADS BDS N N IDS IDS 16510N2554B
HIC