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Doubles in session


Current system
21099+4422
STF 2772


Nearby doubles
11' : 21108+4417
A 882

21' : 21118+4417
TDT2812

22' : 21103+4359
STF2773AB

23' : 21101+4359
HJ 1618AB

23' : 21079+4430
LDS2490

23' : 21120+4419
TDT2816

35' : 21073+4440
A 881

39' : 21112+4346
ES 1454AB

42' : 21136+4433
ES 1333

43' : 21071+4459
LDS2489

44' : 21080+4500
TDT2774

47' : 21139+4438
TDT2839

47' : 21137+4453
LDS2498

48' : 21080+4504
SMA 126

49' : 21061+4448
ROE 45AB

49' : 21139+4400
COU2299

56' : 21051+4444
SMA 124

56' : 21100+4326
ES 1453

59' : 21075+4515
HJ 1615

60' : 21058+4341
BU 679

67' : 21071+4322
ES 1452

70' : 21111+4530
BRT1146

71' : 21161+4444
MCN 2

71' : 21086+4312
GRV 423

71' : 21152+4339
LDS2501

73' : 21145+4329
J 610



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.

21099+4422 STF 2772

 
 
21h 09m 54.83s +44° 21' 30.9" P.A. 224.00 sep 12.4 mag 9.51,10.93 Sp M1
 
 
Coord 2000 21099+4422 Discov num STF2772 Comp Coord arcsec 2000 21 09 54.83 +44 21 30.9
Date first 1895 Date last 2016 Obs 17
Pa first 230 Pa last 224.2 P.A. Now (θ) 224.2°
Sep first 10.9 Sep last 12.437 Sep. Now (ρ) 12.437"
Mag pri 9.51 Mag sec 10.93 delta mag (ΔM) 1.42 Spectral class M1 (red)
Pri motion ra -125 Sec motion ra -006
Pri motion dec -005 Sec motion dec -003
Notes
rPM=0.951
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3180-00249-1 Gaia DR2 1970285636829305344
 
 
WDS 21099+4422 STF 2772 : 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
21099+4422 STF2772 1998 11 225 12.2 9.51 10.93 M1 D 210954.83+442130.9
21099+4422 STF2772 2002 12 226 12.2 9.51 10.93 M1 D 210954.83+442130.9
21099+4422 STF2772 2016 13 225 12.4 9.51 10.93 M1 210954.83+442130.9

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

 
 
WDS 21099+4422 STF 2772 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21099+4422 STF 2772 : MEASURES
 
 
No records found.

 
 
WDS 21099+4422 : VIRTUAL EYEPIECE
 
 

21099+4422 STF2772A mag 9.51 Sp M1 21099+4422 STF2772B sep 10.9 P.A. 214.80 mag 10.93 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 21099+4422 : ALADIN DSS IMAGE @ 21h 09m 54.83s +44° 21' 30.9"
 
 
 
 
WDS 21099+4422 STF 2772 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21099+4422 STF2772 distance=0' 21108+4417 A 882 distance=11' 21118+4417 TDT2812 distance=21' 21103+4359 STF2773AB distance=22' 21103+4359 STF2773AC distance=22' 21103+4359 STF2773AD distance=22' 21103+4359 STF2773AE distance=22' 21101+4359 HJ 1618AB distance=23' 21079+4430 LDS2490 distance=23' 21101+4359 HJ 1618BC distance=23' 21103+4359 STF2773EF distance=23' 21120+4419 TDT2816 distance=23' 21073+4440 A 881 distance=35' 21112+4346 ES 1454AB distance=39' 21112+4346 ES 1454BC distance=40' 21136+4433 ES 1333 distance=42' 21071+4459 LDS2489 distance=43' 21080+4500 TDT2774 distance=44' 21139+4438 TDT2839 distance=47' 21137+4453 LDS2498 distance=47' 21080+4504 SMA 126 distance=48' 21061+4448 ROE 45AB distance=49' 21061+4448 ROE 45AD distance=49' 21139+4400 COU2299 distance=49' 21061+4448 ROE 45DE distance=50' 21061+4448 ROE 45BC distance=51' 21061+4448 ROE 45BF distance=51' 21061+4448 TDT2745Ca,Cb distance=52' 21061+4448 ROE 45CD distance=52' 21051+4444 SMA 124 distance=56' 21100+4326 ES 1453 distance=56' 21075+4515 HJ 1615 distance=59' 21058+4341 BU 679 distance=60' 21071+4322 ES 1452 distance=67' 21111+4530 BRT1146 distance=70' 21161+4444 MCN 2 distance=71' 21086+4312 GRV 423 distance=71' 21152+4339 LDS2501 distance=71' 21145+4329 J 610 distance=73' 21053+4328 LDS2486 distance=73' 21069+4314 TDT2759 distance=75' 21166+4448 ES 97 distance=76' 21105+4538 BRT1145 distance=77' 21166+4357 BRT1147 distance=77' 21148+4518 TDT2855 distance=77' 21062+4315 DAM1460 distance=78' 21064+4314 LDS2488 distance=78' 21154+4325 LDS2502 distance=81' 21105+4300 VKI 39 distance=82' 21169+4456 A 885 distance=82' 21121+4543 ES 9005BD distance=84' 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 21099+4422 STF2772 224 12.4
Show 21108+4417 A 882 228 2.6 11
Show 21118+4417 TDT2812 258 0.5 21
Show 21103+4359 STF2773 AB 112 3.3 22
Show 21103+4359 STF2773 AC 64 20.3 22
Show 21103+4359 STF2773 AD 262 29.4 22
Show 21103+4359 STF2773 AE 149 52.2 22
Show 21101+4359 HJ 1618 AB 174 21.7 23
Show 21079+4430 LDS2490 190 12.6 23
Show 21101+4359 HJ 1618 BC 132 2.9 23
Show 21103+4359 STF2773 EF 41 10.7 23
Show 21120+4419 TDT2816 89 0.3 23
Show 21073+4440 A 881 218 4.3 35
Show 21112+4346 ES 1454 AB 111 66.8 39
Show 21112+4346 ES 1454 BC 285 3.2 40
Show 21136+4433 ES 1333 296 1.6 42
Show 21071+4459 LDS2489 255 16.0 43
Show 21080+4500 TDT2774 173 1.8 44
Show 21139+4438 TDT2839 352 1.2 47
Show 21137+4453 LDS2498 316 13.0 47
Show 21080+4504 SMA 126 18 8.9 48
Show 21061+4448 ROE 45 AB 286 134.5 49
Show 21061+4448 ROE 45 AD 241 131.8 49
Show 21139+4400 COU2299 33 0.4 49
Show 21061+4448 ROE 45 DE 6 27.5 50
Show 21061+4448 ROE 45 BC 238 123.3 51
Show 21061+4448 ROE 45 BF 312 10.8 51
Show 21061+4448 TDT2745 Ca,Cb 116 0.6 52
Show 21061+4448 ROE 45 CD 107 124.4 52
Show 21051+4444 SMA 124 72 9.2 56
Show 21100+4326 ES 1453 67 5.3 56
Show 21075+4515 HJ 1615 277 14.4 59
Show 21058+4341 BU 679 75 0.7 60
Show 21071+4322 ES 1452 19 2.3 67
Show 21111+4530 BRT1146 344 2.6 70
Show 21161+4444 MCN 2 303 16.0 71
Show 21086+4312 GRV 423 212 62.4 71
Show 21152+4339 LDS2501 274 11.3 71
Show 21145+4329 J 610 26 3.3 73
Show 21053+4328 LDS2486 329 78.2 73
Show 21069+4314 TDT2759 119 0.5 75
Show 21166+4448 ES 97 290 7.5 76
Show 21105+4538 BRT1145 163 3.8 77
Show 21166+4357 BRT1147 2.6 77
Show 21148+4518 TDT2855 1 0.5 77
Show 21062+4315 DAM1460 284 2.4 78
Show 21064+4314 LDS2488 166 2.2 78
Show 21154+4325 LDS2502 172 67.0 81
Show 21105+4300 VKI 39 236 1.3 82
Show 21169+4456 A 885 153 3.9 82
Show 21121+4543 ES 9005 BD 84 22.3 84

 
 
WDS 21099+4422 : COMPONENTS
 
 
  A
B pa=214.8°
sep=10.86"
 
 
21099+4422 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210954.83+442130.9 Mag 9.51 Spectral class M1 (red)
PmRA -125.00 PmDE -5.0 Tycho2 3180-00249-1
Tycho2
Tycho2 3180-00249-1 Pflag RAmdeg 317.47844401 DEmdeg 44.35858277
PmRA -1.7 PmDE 11.0 E RAmdeg 16 E DEmdeg 17
E pmRA 1.3 E pmDE 1.3 EpRAm 1989.76 EpDEm 1989.19
Num 9 Q RAmdeg 1.1 Q DEmdeg 0.9 Q pmRA 1.2
Q pmDE 0.9 BTmag 11.411 E BTmag 0.063 VTmag 9.507
E VTmag 0.021 Prox 121 TYC T HIP
CCDM RAdeg 317.47845000 DEdeg 44.35855694 EpRA 1990 1.74
EpDE 1990 1.64 E RAdeg 17.3 E DEdeg 18.2 Posflg
Corr 0.0
 
 
21099+4422 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210954.25+442122.0 Mag 10.93 PmRA -6.00
PmDE -3.0 Tycho2 3180-02697-1 Calc delta mag 1.42 Calc coord yes
Tycho2
Tycho2 3180-02697-1 Pflag RAmdeg 317.47507680 DEmdeg 44.35621876
PmRA -5.3 PmDE -0.1 E RAmdeg 34 E DEmdeg 38
E pmRA 1.7 E pmDE 1.6 EpRAm 1987.21 EpDEm 1985.42
Num 3 Q RAmdeg 0.6 Q DEmdeg 0.9 Q pmRA 0.6
Q pmDE 0.9 BTmag 11.271 E BTmag 0.057 VTmag 10.928
E VTmag 0.064 Prox 121 TYC T HIP
CCDM RAdeg 317.47509361 DEdeg 44.35621889 EpRA 1990 1.76
EpDE 1990 1.67 E RAdeg 35.4 E DEdeg 38.8 Posflg
Corr 0.0