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Current system
21120+2410
STT 430
HD 201889


Nearby doubles
4' : 21122+2414
POU5244

7' : 21124+2415
POU5246

9' : 21118+2403
POU5241AB

10' : 21113+2414
POU5233

10' : 21114+2408
POU5231

13' : 21115+2422
POU5235

14' : 21118+2357
POU5239

15' : 21131+2409
POU5259

18' : 21109+2403
POU5221

19' : 21109+2359
POU5223

20' : 21130+2424
POU5258

22' : 21112+2353
POU5227

23' : 21112+2351
BKO 885

23' : 21130+2351
FYM 590

23' : 21110+2353
POU5224

23' : 21118+2348
POU5240

23' : 21129+2354
POU5256

24' : 21106+2359
POU5214

24' : 21113+2349
POU5230

24' : 21129+2350
TDT2828

26' : 21134+2426
POU5268

26' : 21139+2415
POU5275

26' : 21114+2348
POU5232

27' : 21112+2347
POU5228

28' : 21137+2426
POU5271

28' : 21110+2345
BKO 884



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.

21120+2410 STT 430 (HD 201889)

 
 
21h 11m 59.52s +24° 10' 05.3" P.A. 193.00 sep 1.4 mag 8.27,10.34 Sp F9V dist. 53.76 pc (175.37 l.y.)
 
 
Coord 2000 21120+2410 Discov num STT 430 Comp Coord arcsec 2000 21 11 59.52 +24 10 05.3
Date first 1843 Date last 2017 Obs 43
Pa first 216 Pa last 192.7 P.A. Now (θ) 192.7°
Sep first 1.3 Sep last 1.429 Sep. Now (ρ) 1.429"
Mag pri 8.27 Mag sec 10.34 delta mag (ΔM) 2.07 Spectral class F9V (yellow-white)
Pri motion ra +440 Sec motion ra +440
Pri motion dec +109 Sec motion dec +109
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 201889 Constellation Vulpecula SAO 89522 HIP 104660
Tycho2 2173-01454-1 HD 201889 GC 29636 ADS 14738
BD BD+23 4264 Distance 53.76 Distance ly 175.37
 
 
ORBITAL ELEMENTS
 
 
Period (P)2504y± 459 Periastron (T)3132.4y± 290 Semi-major axis (a)4.094a± 0.491
Eccentricity (e)0.806± 0.018 Inclination (i)100.9°± 1.1 Longitude of periastron (ω)88.5°± 5
Node (Ω)113.3°± 5 Notes ReferencePkO2018b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 194.7 1.405
2001 194.6 1.405
2002 194.5 1.405
2003 194.3 1.406
2004 194.2 1.406
2005 194.0 1.406
2006 193.9 1.407
2007 193.8 1.407
2008 193.6 1.408
2009 193.5 1.408
2010 193.4 1.408
2011 193.2 1.409
2012 193.1 1.409
2013 193.0 1.410
2014 192.8 1.410
2015 192.7 1.410
2016 192.5 1.411
2017 192.4 1.411
2018 192.3 1.412
2019 192.1 1.412
2020 192.0 1.413
2021 191.9 1.413
2022 191.7 1.414
2023 191.6 1.414
2024 191.5 1.415
2025 191.3 1.415
2026 191.2 1.416
2027 191.1 1.416
2028 190.9 1.417
2029 190.8 1.417
2030 190.7 1.418


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


 
  


wds21120%2B2410a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21120+2410 STT 430 (HD 201889) : NOTES
 
 
discov_num notes refcode
STT 430 HIP 104660. See Allen et al. (2000) for information on metallicity, AlC2000
age, galactic orbital parameters, etc.
 
 
REFERENCES
 
 
refcode metd author reference
AlC2000 Po - Allen, C., Poveda, A., & Herrera, M 2000A&A...356..529A
AlC2000 A&A 356, 529, 2000
PkO2018b orb Baidin, A.E., Perov, N.I. & Romanenko, L.G. .
PkO2018b Vestnik of Saint Petersburg University, Volume 5 (63), 148, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21120+2410 STT 430 1999 35 195 1.4 8.27 10.34 F9V N D 211159.52+241005.3
21120+2410 STT 430 2012 38 194 1.4 8.27 10.34 F9V N D 211159.52+241005.3
21120+2410 STT 430 2017 40 193 1.4 8.27 10.34 F9V NV 211159.52+241005.3

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

 
 
WDS 21120+2410 STT 430 (HD 201889) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21120+2410 STT 430 (HD 201889) : MEASURES
 
 
No records found.

 
 
WDS 21120+2410 (HD 201889) : VIRTUAL EYEPIECE
 
 

21120+2410 STT 430A mag 8.27 Sp F9V 21120+2410 STT 430B sep 1.4 P.A. 191.60 mag 10.34 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 21120+2410 (HD 201889) : ALADIN DSS IMAGE @ 21h 11m 59.52s +24° 10' 05.3"
 
 
 
 
WDS 21120+2410 STT 430 (HD 201889) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21120+2410 STT 430 distance=0' 21122+2414 POU5244 distance=4' 21124+2415 POU5246 distance=7' 21118+2403 POU5241AB distance=9' 21118+2403 POU5242AC distance=9' 21113+2414 POU5233 distance=10' 21114+2408 POU5231 distance=10' 21115+2422 POU5235 distance=13' 21118+2357 POU5239 distance=14' 21131+2409 POU5259 distance=15' 21109+2403 POU5221 distance=18' 21109+2359 POU5223 distance=19' 21130+2424 POU5258 distance=20' 21112+2353 POU5227 distance=22' 21112+2351 BKO 885 distance=23' 21130+2351 FYM 590 distance=23' 21110+2353 POU5224 distance=23' 21118+2348 POU5240 distance=23' 21129+2354 POU5256 distance=23' 21106+2359 POU5214 distance=24' 21113+2349 POU5230 distance=24' 21129+2350 TDT2828 distance=24' 21134+2426 POU5268 distance=26' 21139+2415 POU5275 distance=26' 21114+2348 POU5232 distance=26' 21112+2347 POU5228 distance=27' 21137+2426 POU5271 distance=28' 21110+2345 BKO 884 distance=28' 21114+2438 POU5234 distance=29' 21128+2436 POU5255 distance=29' 21133+2346 UC 4409 distance=30' 21100+2354 POU5211AB distance=32' 21100+2354 BKO 771AC distance=32' 21100+2355 POU5209 distance=32' 21141+2355 POU5278 distance=33' 21096+2410 POU5203 distance=33' 21125+2442 POU5249 distance=33' 21117+2443 POU5238 distance=34' 21097+2400 POU5205 distance=34' 21100+2351 POU5210 distance=34' 21132+2441 POU5262 distance=35' 21143+2355 POU5281 distance=35' 21139+2432 POU5277 distance=35' 21097+2427 POU5206 distance=36' 21095+2422 POU5202 distance=36' 21117+2447 POU5236 distance=37' 21147+2402 POU5287 distance=38' 21092+2403 POU5198 distance=38' 21124+2333 POU5247 distance=39' 21141+2436 POU5280 distance=39' 21108+2445 POU5218 distance=40' 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 21120+2410 STT 430 193 1.4
Show 21122+2414 POU5244 29 14.5 4
Show 21124+2415 POU5246 245 5.3 7
Show 21118+2403 POU5241 AB 56 13.9 9
Show 21118+2403 POU5242 AC 232 17.4 9
Show 21113+2414 POU5233 302 14.4 10
Show 21114+2408 POU5231 247 17.5 10
Show 21115+2422 POU5235 242 11.9 13
Show 21118+2357 POU5239 66 7.9 14
Show 21131+2409 POU5259 139 10.1 15
Show 21109+2403 POU5221 26 4.7 18
Show 21109+2359 POU5223 349 9.6 19
Show 21130+2424 POU5258 66 29.9 20
Show 21112+2353 POU5227 324 15.3 22
Show 21112+2351 BKO 885 89 13.6 23
Show 21130+2351 FYM 590 301 11.9 23
Show 21110+2353 POU5224 33 15.6 23
Show 21118+2348 POU5240 43 7.7 23
Show 21129+2354 POU5256 254 14.4 23
Show 21106+2359 POU5214 306 2.0 24
Show 21113+2349 POU5230 20 11.2 24
Show 21129+2350 TDT2828 213 0.6 24
Show 21134+2426 POU5268 358 8.6 26
Show 21139+2415 POU5275 31 19.3 26
Show 21114+2348 POU5232 323 17.6 26
Show 21112+2347 POU5228 239 17.5 27
Show 21137+2426 POU5271 97 5.3 28
Show 21110+2345 BKO 884 22 3.8 28
Show 21114+2438 POU5234 351 11.3 29
Show 21128+2436 POU5255 73 18.0 29
Show 21133+2346 UC 4409 358 50.3 30
Show 21100+2354 POU5211 AB 328 10.5 32
Show 21100+2354 BKO 771 AC 241 8.5 32
Show 21100+2355 POU5209 291 7.0 32
Show 21141+2355 POU5278 225 12.8 33
Show 21096+2410 POU5203 156 3.2 33
Show 21125+2442 POU5249 93 6.5 33
Show 21117+2443 POU5238 242 12.8 34
Show 21097+2400 POU5205 28 16.4 34
Show 21100+2351 POU5210 10 18.2 34
Show 21132+2441 POU5262 102 11.7 35
Show 21143+2355 POU5281 30 17.7 35
Show 21139+2432 POU5277 338 18.2 35
Show 21097+2427 POU5206 301 9.3 36
Show 21095+2422 POU5202 316 14.7 36
Show 21117+2447 POU5236 91 6.0 37
Show 21147+2402 POU5287 231 17.1 38
Show 21092+2403 POU5198 44 6.9 38
Show 21124+2333 POU5247 22 14.2 39
Show 21141+2436 POU5280 202 16.7 39
Show 21108+2445 POU5218 59 14.6 40

 
 
WDS 21120+2410 : COMPONENTS
 
 
  A
B pa=191.6°
sep=1.42"
 
 
21120+2410 A
 
 
Componente originario normalizzato AB Name HD 201889 Coord arcsec 2000 211159.52+241005.3 Mag 8.27
Spectral class F9V (yellow-white) PmRA 440.00 PmDE 109.0 SAO 89522
HIP 104660 Tycho2 2173-01454-1 HD 201889 GC 29636
BD BD+23 4264
Tycho2
Tycho2 2173-01454-1 Pflag P RAmdeg 317.99800831 DEmdeg 24.16813866
PmRA 440.3 PmDE 108.5 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.51 EpDEm 1991.41
Num 6 Q RAmdeg 0.5 Q DEmdeg 1.2 Q pmRA 0.5
Q pmDE 1.2 BTmag 8.874 E BTmag 0.016 VTmag 8.265
E VTmag 0.012 Prox 14 TYC T HIP 104660
CCDM A RAdeg 317.99691833 DEdeg 24.16791111 EpRA 1990 1.80
EpDE 1990 1.70 E RAdeg 5.6 E DEdeg 5.8 Posflg D
Corr -0.1
SAO
SAO 89522 DelFlag RA1950 PmRA1950 0.0312
DE1950 PmDE1950 0.129 Vmag 7.9 SpType F8
Double code Source 70 CatNum 29636 DM BD+23 4264
DMcomp BDsup HD 201889 M HD 0
GC 29636 RA1950rad 5.5402682 DE1950rad 0.41819818 PmRA2000 0.0313
PmDE2000 0.127
Hipparcos
Catalog H HIP 104660 Proxy H RAhms 21 11 59.24
DEdms +24 10 04.4 Vmag 8.06 VarFlag R Vmag G
RAdeg 317.997 DEdeg 24.1679 AstroRef A Plx 17.95
CCDM 21120+2410 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 197 Rho 1.429 HD 201889 BD BD+23 4264
CD CP Dm number +23 4264 VIred 0.67
SpType G1V R SpType Coord arcsec 2000 211159.24+241004.4
Hipparcos 2
HIP 104660 Sn 15 So 3 Nc 2
RArad 5.5500919565 DErad 0.4218094337 Plx 18.6 PmRA 439.02
PmDE 108.41 E RArad 0.55 E DErad 0.46 E Plx 0.92
E pmRA 0.72 E pmDE 0.6 Hpmag 8.1728 E Hpmag 0.001
SHp 0.014 VA 0 BV 0.595 E BV 0.017
VI 0.67
CCDM
Ccdm 21120+2410 RComp Comp A Note1
Note2 Discov num DRAs -0.48 DDEs 5.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.2 Sp F8 PmNote *
PmRA 444 PmDE 107 Dm number +23 4264 Cat1 BD
Name2 +23 2168 Cat2 AGK2/3 HD 201889 M HD
ADS BDS A14738 M ADS BDS N IDS IDS 21075N2345A
HIC 104660
 
 
21120+2410 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211159.50+241003.9 Mag 10.34 PmRA 440.00
PmDE 109.0 Tycho2 2173-01454-2 Calc delta mag 2.07 Calc coord yes
Tycho2
Tycho2 2173-01454-2 Pflag P RAmdeg 317.99800831 DEmdeg 24.16813866
PmRA 440.3 PmDE 108.5 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.51 EpDEm 1991.41
Num 6 Q RAmdeg 0.5 Q DEmdeg 1.2 Q pmRA 0.5
Q pmDE 1.2 BTmag 11.180 E BTmag 0.051 VTmag 10.342
E VTmag 0.037 Prox 14 TYC HIP 104660
CCDM B RAdeg 317.99676722 DEdeg 24.16753667 EpRA 1990 1.79
EpDE 1990 1.69 E RAdeg 27.7 E DEdeg 28.3 Posflg D
Corr -0.1
CCDM
Ccdm 21120+2410 RComp Comp B Note1
Note2 Discov num STT 430 DRAs DDEs
R dRAs Year 1959 Theta 206 Rho 1.3
Obs 21 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14738 M ADS BDS N IDS IDS 21075N2345B
HIC 104660