| Coord 2000 | 19482+7016 |
Discov num | STF2603 |
Comp | Coord arcsec 2000 | 19 48 10.35 +70 16 04.5 |
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| Date first | 1823 |
Date last | 2017 |
Obs | 155 |
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| Pa first | 355 |
Pa last | 21 |
P.A. Now (θ) | 21.7° |
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| Sep first | 2.6 |
Sep last | 3.2 |
Sep. Now (ρ) | 3.2" |
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| Mag pri | 4.01 |
Mag sec | 6.87 |
delta mag (ΔM) | 2.86 |
Spectral class | G7IIIb (yellow) |
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| Pri motion ra | +079 |
Sec motion ra | |||||||||
| Pri motion dec | +039 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 20.6 |
Precise sep | 3.16 |
Common name | Tyl |
Meaning | red fish |
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| Other names | KIN YU |
Constellation | Draco |
SAO | 9540 |
HIP | 97433 |
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| Tycho2 | 4449-02652-1 |
Gaia DR2 | 2251191616253487360 |
HD | 188119 |
HR | 7582 |
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| GC | 27471 |
ADS | 13007 |
BD | BD+69 1070 |
Bayer | Epsilon Draconis |
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| Bayer name | Eps Dra |
Flamsteed | 63 Draconis |
Flamsteed name | 63 Dra |
Distance | 45.37 |
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| Distance ly | 148 |
last precise pa | 20.6 |
last precise sep | 3.16 |
| Period (P) | 2753.3257y | ± 1292.0608 | Periastron (T) | 1598.5654y | ± 561.9011 | Semi-major axis (a) | 8.01058a | ± 4.07389 |
| Eccentricity (e) | 0.83937 | ± 0.13066 | Inclination (i) | 70.932° | ± 9.569 | Longitude of periastron (ω) | 111.258° | ± 28.09 |
| Node (Ω) | 128.309° | ± 68.794 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
| Equinox | Last observation | 2012 |
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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 |
| 19482+7016 | STF2603 | 2005 | 148 | 19 | 3.2 | 4.01 | 6.87 | G7IIIb | N D | 194810.35+701604.5 | |
| 19482+7016 | STF2603 | 2007 | 150 | 20 | 3.1 | 4.01 | 6.87 | G7IIIb | N D | 194810.35+701604.5 | |
| 19482+7016 | STF2603 | 2008 | 149 | 341 | 4.8 | 4.01 | 6.87 | G7IIIb | N D | 194810.35+701604.5 | |
| 19482+7016 | STF2603 | 2010 | 151 | 19 | 3.0 | 4.01 | 6.87 | G7IIIb | N D | 194810.35+701604.5 | |
| 19482+7016 | STF2603 | 2012 | 152 | 21 | 3.1 | 4.01 | 6.87 | G7IIIb | N D | 194810.35+701604.5 | |
| 19482+7016 | STF2603 | 2017 | 153 | 21 | 3.2 | 4.01 | 6.87 | G7IIIb | N | 194810.35+701604.5 |