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Doubles in session


Current system
19535+2405
DJU 4
13 Vul


Nearby doubles
2' : 19534+2404
POU4130

14' : 19536+2352
POU4132

17' : 19547+2402
POU4136

19' : 19539+2348
POU4134

19' : 19523+2415
POU4127

21' : 19545+2419
HDS2837

26' : 19518+2356
POU4122

26' : 19521+2348
POU4123

27' : 19548+2345
POU4137

28' : 19533+2337
A 168

29' : 19520+2345
BKO1020

29' : 19523+2428
POU4125

30' : 19517+2421
POU4121

33' : 19542+2333
BKO1046AB

34' : 19527+2336
CHE 177

34' : 19540+2333
CHE 182

35' : 19546+2435
COU1035

35' : 19524+2334
BKO 438

36' : 19518+2344
CHE 172

36' : 19554+2341
COU1036

37' : 19530+2441
J 542

38' : 19538+2328
BKO1042AB

38' : 19534+2327
BKO1036

41' : 19551+2441
EGB 9AB

42' : 19504+2409
COU1034

43' : 19548+2442
HWE 52AB



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.

19535+2405 DJU 4 (13 Vul)

 
 
19h 53m 27.69s +24° 04' 46.6" P.A. 245.00 sep 1.5 mag 4.63,7.37 Sp B9.5III dist. 102.56 pc (334.55 l.y.)
 
 
Coord 2000 19535+2405 Discov num DJU   4 Comp Coord arcsec 2000 19 53 27.69 +24 04 46.6
Date first 1953 Date last 2021 Obs 52
Pa first 242 Pa last 244.6 P.A. Now (θ) 247.8°
Sep first 0.8 Sep last 1.5 Sep. Now (ρ) 1.53"
Mag pri 4.63 Mag sec 7.37 delta mag (ΔM) 2.74 Spectral class B9.5III (blue-white)
Pri motion ra +020 Sec motion ra +020
Pri motion dec +033 Sec motion dec +033
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 13 Vul Constellation Vulpecula SAO 87883 HIP 97886
Tycho2 2140-03051-1 Gaia DR2 1828386961117254272 HD 188260 HR 7592
GC 27544 BD BD+23 3820 Flamsteed 13 Vulpeculae Flamsteed name 13 Vul
Distance 102.56 Distance ly 334.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)615.25y± 104.12 Periastron (T)2027.82y± 94.79 Semi-major axis (a)1.555a± 0.241
Eccentricity (e)0.079± 0.042 Inclination (i)85.9°± 1.5 Longitude of periastron (ω)169.7°± 4.4
Node (Ω)68.1°± 0.3 Notesn ReferenceCve2008d
Equinox2000 Last observation2004 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 245.8 1.254
2001 245.9 1.262
2002 245.9 1.270
2003 246.0 1.277
2004 246.0 1.285
2005 246.1 1.292
2006 246.2 1.299
2007 246.2 1.306
2008 246.3 1.313
2009 246.3 1.319
2010 246.4 1.326
2011 246.5 1.332
2012 246.5 1.338
2013 246.6 1.344
2014 246.6 1.349
2015 246.7 1.355
2016 246.7 1.360
2017 246.8 1.365
2018 246.8 1.370
2019 246.9 1.375
2020 247.0 1.380
2021 247.0 1.384
2022 247.1 1.388
2023 247.1 1.392
2024 247.2 1.396
2025 247.2 1.400
2026 247.3 1.403
2027 247.3 1.407
2028 247.4 1.410
2029 247.4 1.413
2030 247.5 1.415
2031 247.5 1.418
2032 247.6 1.420
2033 247.6 1.423
2034 247.7 1.425
2035 247.7 1.426
2036 247.8 1.428
2037 247.8 1.429
2038 247.9 1.431
2039 247.9 1.432
2040 248.0 1.432
2041 248.0 1.433
2042 248.1 1.434
2043 248.1 1.434
2044 248.2 1.434
2045 248.2 1.434
2046 248.3 1.434
2047 248.3 1.433
2048 248.4 1.432
2049 248.4 1.432
2050 248.5 1.431


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds19535%2B2405a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic