| Coord 2000 | 19535+2405 |
Discov num | DJU 4 |
Comp | Coord arcsec 2000 | 19 53 27.69 +24 04 46.6 |
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| Date first | 1953 |
Date last | 2020 |
Obs | 51 |
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| Pa first | 242 |
Pa last | 248 |
P.A. Now (θ) | 247° |
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| Sep first | 0.8 |
Sep last | 1.5 |
Sep. Now (ρ) | 1.38" |
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| Mag pri | 4.63 |
Mag sec | 7.37 |
delta mag (ΔM) | 2.74 |
Spectral class | B9.5III (blue-white) |
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| Pri motion ra | +020 |
Sec motion ra | +020 |
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| Pri motion dec | +033 |
Sec motion dec | +033 |
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| Notes | |||||||||||
| Precise pa | 247.8 |
Precise sep | 1.53 |
Name | 13 Vul |
Constellation | Vulpecula |
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| SAO | 87883 |
HIP | 97886 |
Tycho2 | 2140-03051-1 |
Gaia DR2 | 1828386961117254272 |
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| HD | 188260 |
HR | 7592 |
GC | 27544 |
BD | BD+23 3820 |
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| Flamsteed | 13 Vulpeculae |
Flamsteed name | 13 Vul |
Distance | 102.56 |
Distance ly | 334.55 |
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| last precise pa | 247.8 |
last precise sep | 1.53 |
| 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 | Grade | 5 | (1=Definitive, 9=Indet.) | ||
| Equinox | 2000 | Last observation | 2004 |
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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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| 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 | |
| 19535+2405 | DJU 4 | 2016 | 49 | 246 | 1.4 | 4.63 | 7.37 | B9.5III | NO | 195327.69+240446.6 |