11 Aquilae
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| Observation data Epoch J2000 Equinox J2000 |
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| Constellation | Aquila |
| Right ascension | 18h 59m 05.7405s |
| Declination | +13° 37′ 20.082″ |
| Apparent magnitude (V) | 5.271 |
| Characteristics | |
| Spectral type | F8V |
| U-B color index | 0.07 |
| B-V color index | 0.53 |
| R-I color index | 0.3 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | 15.9 km/s |
| Proper motion (μ) | RA: 19.49 mas/yr Dec.: -124.92 mas/yr |
| Parallax (π) | 20.99 ± 0.69 mas |
| Distance | 155 ± 5 ly (48 ± 2 pc) |
| Absolute magnitude (MV) | 5.775 |
| Details | |
| Mass | 1,7 M☉ |
| Radius | 1,4 R☉ |
| Luminosity | 6 L☉ |
| Temperature | 6,000–7,500 K |
| Metallicity | ? |
| Rotation | 26 Km/s 0,0074737 Year |
| Age | ? years |
| Orbit | |
| Companion | 11 Aquilae B |
| Semimajor axis (a) | 19" |
| Inclination (i) | 296° |
| Orbit | |
| Companion | 11 Aquilae C |
| Semimajor axis (a) | 78.3" |
| Inclination (i) | 268° |
| Other designations | |
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SV* ZI 1567, GC 26075, IDS 18545+1329, SAO 104308, GCRV 11434, IRAS 18567+1333, ADS 11902 A, JP11 3057, TD1 23634, AG+13° 1868, GSC 01051-02478, 2MASS J18590573+1337201, TYC 1051-2478-1, BD+13° 3841, HD 176303, NSV 11618, UBV 16120, CCDM J18591+1337A, HIC 93203, PLX 4403, YZ 13 6944, CSI+13 3841 1, HIP 93203, PPM 135573, CSV 101791, HR 7172, ROT 2698.
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| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
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11 Aquilae is a binary star in the constellation Aquila. The stars making up the pair are apparent magnitudes 5.7 and 9.2. There is a noticeable color difference between the two components. They are approximately 155 light years away.
[edit] References
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
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| 11 Aquilae B (BD+13 3841B) | 18h 59m 04.5639s | +13° 37' 29.565 | 9.25 | G5 | Simbad |
| 11 Aquilae C (BD+13 3841C) | 18h 59m 00.1s | +13° 37' 21 | 12.4 | Simbad |
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