| Observation data EpochJ2000.0 EquinoxJ2000.0 | |
|---|---|
| Constellation | Andromeda[1] |
| Right ascension | 00h 28m 12.94s[2] |
| Declination | +42° 03′ 40.9″[2] |
| Apparent magnitude (V) | 12.82[3] |
| Characteristics | |
| Evolutionary stage | main sequence star[3] |
| Spectral type | G2V[3] |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: 0.919±0.064mas/yr[2] Dec.: −6.509±0.100mas/yr[2] |
| Parallax (π) | 2.693±0.058 mas[2] |
| Distance | 1,210 ± 30 ly (371 ± 8 pc) |
| Details | |
| Mass | 1.128±0.056[4] M☉ |
| Radius | 1.076±0.051[4] R☉ |
| Luminosity | 1.13[3] L☉ |
| Surface gravity (log g) | 4.427±0.035[4] cgs |
| Temperature | 5746±49[4] K |
| Metallicity[Fe/H] | 0.38±0.08[4] dex |
| Rotational velocity (v sin i) | 10.4±0.5[3] km/s |
| Age | 530±4[3] Myr |
| Other designations | |
| Gaia DR2 382111248777193216, Qatar 5,2MASS J00281293+4203407, TOI-1463 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Qatar-5 is a faintG-dwarfstar that hosts a planet in the constellationAndromeda. With anapparent magnitude of 12.82, it is impossible to see with the naked eye, and can be detected with a powerful telescope. Qatar-5 is currently located about 1,211 light years away based on parallax.
This star is a relatively young star with an age of only 5.47 billion years. At this age, it is still on themain sequence. Qatar-5 has 112.8% themass of the Sun, and 107.6% thelatter's radius. Despite all of this, it has 113% of theSun's luminosity, which corresponds to aneffective temperature of5,746 K. Qatar-5 rotates at a rate of10.4 km/s.
In 2016, theQatar Exoplanet Survey discovered a planet around this star.
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 4.32±0.18 MJ | 0.04127±0.00067 | 2.8792319 | 0 | 88.74±0.87° | 1.107±0.064 RJ |
| Discovery[5] | |
|---|---|
| Discovered by | Alsubai et al. 2019 |
| Discovery date | 2016 |
| Transit | |
| Orbital characteristics | |
| 0.04127 ± 0.00067 au[5] | |
| Eccentricity | 0[5] |
| 2.8792319 d[5] | |
| Inclination | 88.74 ± 0.87°[5] |
| Semi-amplitude | 568 ± 15 m/s[5] |
| Physical characteristics | |
| 1.107 ± 0.064 RJ[5] | |
| Mass | 4.32 ± 0.18 MJ[5] |
Meandensity | 3.95 ± 0.58 g cm−3[5] |
| Temperature | 1415 ± 31 K[5] |
Qatar-5b is aHot Jupiter orbiting the star Qatar-5 located inAndromeda constellation.[6] It orbits its star every 2.87 days. It was discovered in 2016 by theQatar Exoplanet Survey (QES).[7][5]
This planet was discovered by QES along withQatar-3b andQatar-4b. The light curves of the planet's respective host stars have been observed as well during the survey, along with their stellar properties[8]
This planet is another typicalhot Jupiter. It orbits very close to its star with a period of 2 days, 21 hours, 6 minutes, and 5.6 seconds.[9] This corresponds with an orbital distance of 0.04127AU, which is about 10 times closer to its star thanMercury is to theSun. With an eccentricity of 0, this suggests that Qatar-5b is on a perfectly circular orbit.
Qatar-5b is a massive planet, with 4.32 times the mass ofJupiter, but a similar radius. With a density of 3.95 g cm−3, this is one of the densest planets discovered. With an effective temperature of 1,415 K, it is a scorching planet.
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