19535+2405 DJU 4 (13 Vul)
19h 53m 27.69s +24° 04' 46.6" P.A. 248.00 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 |
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Coord arcsec 2000 |
19 53 27.69 +24 04 46.6 |
|
| Date first |
1953 |
|
Date last |
2020 |
|
Obs |
51 |
|
| Pa first |
242 |
|
Pa last |
247.8 |
|
P.A. Now (θ) |
247.8° |
|
| Sep first |
0.8 |
|
Sep last |
1.53 |
|
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 |
Notes | n | |
Reference | Cve2008d | |
| Equinox | 2000 | |
Last observation | 2004 | |
Grade | 5 | (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 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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