28 Aquilae
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28 Aquilae |
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Aquila |
| Right ascension | 19h 19m 39.3481s |
| Declination | +12° 22′ 28.847″ |
| Apparent magnitude (V) | 5.531 |
| Characteristics | |
| Spectral type | F0III |
| U-B color index | 0.18 |
| B-V color index | 0.26 |
| Variable type | Delta Scuti variable |
| Astrometry | |
| Radial velocity (Rv) | 3.2 km/s |
| Proper motion (μ) | RA: 4.28 mas/yr Dec.: 16.69 mas/yr |
| Parallax (π) | 9.39 ± 0.69 mas |
| Distance | 350 ± 30 ly (106 ± 8 pc) |
| Absolute magnitude (MV) | 5.768 |
| Details | |
| Mass | 1,7 M☉ |
| Radius | 1,4 R☉ |
| Luminosity | 6 L☉ |
| Temperature | 6,000–7,500 K |
| Metallicity | ? |
| Rotation | 59 Km/s 0,0032934963 Year |
| Age | ? years |
| Orbit | |
| Companion | CCDM 19197+1222 B |
| Period (P) | 1856 yr |
| Semimajor axis (a) | 60,2" |
| Inclination (i) | 175° |
| Orbit | |
| Companion | CCDM 19197+1222 C |
| Period (P) | 1912 yr |
| Inclination (i) | 105° |
| Other designations | |
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V1208 Aql, GCRV 11786, IDS 19150+1211 AC, TD1 24419, 2MASS J19193934+1222289, TYC 1050-675-1, S 717AC, GSC 01050-00675, PLX 4515, UBV M 23672, AG+12 2082, HD 181333, PPM 136121, UBV 16346, BD+12° 3879, HIC 94982, ROT 2770, uvby98 100181333 V, CCDM J19197+1222AC, HIP 94982, SAO 104722, YZ 12 7165, GC 26654, HR 7331.
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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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28 Aquilae or V1208 Aquilae is a star in the constellation Aquila. Its apparent magnitude is 5.53. The primary has an FO spectrum. It has a 9.0 magnitude companion at 59.7".
[edit] References
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| CCDM 19197+1222 C (BD+12 3880) | 19h 19m 39.7307s | +12° 21' 28.488 | 8.97 | G5 | Simbad |
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