19535+2405 DJU   4 (13 Vul)

 
 
19h 53m 27.69s +24 04' 46.6" P.A. 246.8 sep 1.37 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
2012
Obs
48
Pa first
242
Pa last
245
P.A. Now (θ)
246.8°
Sep first
0.8
Sep last
1.4
Sep. Now (ρ)
1.37"
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
 
 
Precise pa
244.6
Precise sep
1.409
Name
13 Vul
Constellation
Vulpecula
SAO
87883
HIP
97886
Tycho2
2140-03051-1
HD
188260
HR
7592
GC
27544
BD
BD+23 3820
Flamsteed
13 Vulpeculae
Flamsteed name
13 Vul
Distance
102.56
Distance ly
334.55
last precise pa
244.6
last precise sep
1.409
 
 
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 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2004
label rho theta
2000 1.254 245.8
2001 1.262 245.9
2002 1.270 245.9
2003 1.277 246.0
2004 1.285 246.0
2005 1.292 246.1
2006 1.299 246.2
2007 1.306 246.2
2008 1.313 246.3
2009 1.319 246.3
2010 1.326 246.4
2011 1.332 246.5
2012 1.338 246.5
2013 1.344 246.6
2014 1.349 246.6
2015 1.355 246.7
2016 1.360 246.7
2017 1.365 246.8
2018 1.370 246.8
2019 1.375 246.9
2020 1.380 247.0
2021 1.384 247.0
2022 1.388 247.1
2023 1.392 247.1
2024 1.396 247.2
2025 1.400 247.2
2026 1.403 247.3
2027 1.407 247.3
2028 1.410 247.4
2029 1.413 247.4
2030 1.415 247.5

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

grafico orbita





wds19535%2B2405a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19535+2405 DJU 4 2004 42 246 1.3 4.63 7.37 B9.5III NOD 195327.69+240446.6
19535+2405 DJU 4 2007 43 246 1.3 4.63 7.37 B9.5III NOD 195327.69+240446.6
19535+2405 DJU 4 2009 44 245 1.4 4.63 7.37 B9.5III NOD 195327.69+240446.6
19535+2405 DJU 4 2011 46 245 1.4 4.63 7.37 B9.5III NO 195327.69+240446.6
19535+2405 DJU 4 2012 48 245 1.4 4.63 7.37 B9.5III NO 195327.69+240446.6

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