HD 183144
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila[2] |
| Right ascension | Template:RA[3] |
| Declination | Template:DEC[3] |
| Apparent magnitude (V) | 6.32[4] |
| Characteristics | |
| Spectral type | B4III[5] |
| U−B Template:Engvar | −0.512[2] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Variable type | suspected[6] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[7][2] km/s |
| Proper motion (μ) | RA: 6.162[3] mas/yr Dec.: −4.550[3] mas/yr |
| Parallax (π) | 2.8745±0.0280 mas[3] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.66[2] |
| Details | |
| Mass | 5.1[8] Template:Solar mass |
| Radius | 5.8[9] Template:Solar radius |
| Luminosity | 2,676[10] Template:Solar luminosity |
| Surface gravity (log g) | 3.73[8] cgs |
| Temperature | 15,139[8] K |
| Metallicity [Fe/H] | −0.003[8] dex |
| Rotational velocity (v sin i) | 200[11] km/s |
| Age | 160[12] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[13] | |
| Database references | |
| SIMBAD | data |
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HD 183144 is a suspected variable star in the equatorial constellation of Aquila. It is a hot giant star about 1,130 light years away.
Results from the MASCARA experiment indicate that HD 183144 is a pulsating variable star with a period of 0.3649 days, during which it varies by 0.01 magnitude in white light.[14][15] It has a mass five times that of the Sun and, at an age of 160 million years, has already evolved away from the main sequence. It has expended to nearly six times the radius of the Sun and, with an effective temperature of Script error: No such module "val"., it has a bolometric luminosity of Template:Solar luminosity.
References
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- ↑ a b c d e Template:Cite Gaia DR3
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- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
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- ↑ Template:Cite simbad
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
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External links
- HR 7396
- Image HD 183144Script error: No such module "Unsubst".