TT Aquilae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 08m 13.75s[1] |
| Declination | +01° 17′ 55.15″[1] |
| Apparent magnitude (V) | 6.46-7.7[2] |
| Characteristics | |
| Spectral type | F6-G5[2] |
| B−V color index | 1.27 ± 0.02 |
| Variable type | Cepheid variable[1] |
| Astrometry | |
| Radial velocity (Rv) | 0 km/s |
| Proper motion (μ) | RA: -0.35 mas/yr Dec.: -4.47 mas/yr |
| Parallax (π) | 0.41 ± 0.96 mas |
| Details | |
| Temperature | 6,000–7,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
TT Aquilae is a star in the constellation Aquila. A Cepheid variable, its apparent magnitude ranges from 6.46 to 7.7 over 13.7546 days.[2] It is a yellow-white supergiant that pulsates between spectral types F6 and G5.[2]
References
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