Qatar-5

{{starbox observe

| constell=Andromeda{{cite constellation|Qatar 5}}

| epoch=J2000.0

| ra={{RA|00|28|12.94}}{{Cite journal|last=Gaia Collaboration|date=2018-04-01|title=VizieR Online Data Catalog: Gaia DR2 (Gaia Collaboration, 2018)|bibcode=2018yCat.1345....0G|journal=VizieR Online Data Catalog|volume=1345|doi=10.26093/cds/vizier.1345 }}

| dec={{DEC|+42|03|40.9}}

| appmag_v=12.82{{Cite journal|last1=Alsubai|first1=Khalid|last2=Mislis|first2=Dimitris|last3=Tsvetanov|first3=Zlatan I.|last4=Latham|first4=David W.|last5=Bieryla|first5=Allyson|last6=Buchhave|first6=Lars A.|last7=Esquerdo|first7=Gilbert A.|last8=Bramich|first8=D. M.|last9=Pyrzas|first9=Stylianos|last10=Vilchez|first10=Nicolas P. E.|last11=Mancini|first11=Luigi|date=2017-04-01|title=Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b|bibcode=2017AJ....153..200A|journal=The Astronomical Journal|volume=153|issue=4|pages=200|doi=10.3847/1538-3881/aa6340|arxiv=1606.06882 |s2cid=119214858|issn=0004-6256|doi-access=free }}

}}

{{starbox character

| type=main sequence star

| class=G2V

| variable=planetary transit

}}

{{starbox astrometry

| parallax=2.693

| p_error=0.058

| parallax_footnote=

| pm_footnote=

| prop_mo_ra={{val|0.919|0.064}}

| prop_mo_dec={{val|-6.509|0.100}}

}}

{{starbox detail

| mass=1.128{{±|0.056}}{{citation|arxiv=2105.14851|year=2021|title=Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves|last1=Wang|first1=Xian-Yu|last2=Wang|first2=Yong-Hao|last3=Wang|first3=Songhu|last4=Wu|first4=Zhen-Yu|last5=Rice|first5=Malena|last6=Zhou|first6=Xu|last7=Hinse|first7=Tobias C.|last8=Liu|first8=Hui-Gen|last9=Ma|first9=Bo|last10=Peng|first10=Xiyan|last11=Zhang|first11=Hui|last12=Yu|first12=Cong|last13=Zhou|first13=Ji-Lin|last14=Laughlin|first14=Gregory|journal=The Astrophysical Journal Supplement Series |volume=255 |issue=1 |page=15 |doi=10.3847/1538-4365/ac0835 |bibcode=2021ApJS..255...15W |s2cid=235253975 |doi-access=free }}

| radius=1.076{{±|0.051}}

| luminosity=1.13

| temperature=5746{{±|49}}

| gravity=4.427{{±|0.035}}

| metal_fe=0.38{{±|0.08}}

| rotational_velocity={{val|10.4|0.5}}

| age_myr={{val|530|4}}

}}

{{starbox catalog

| names=Gaia DR2 382111248777193216, Qatar 5, 2MASS J00281293+4203407, TOI-1463

}}

{{starbox reference

| Simbad=Qatar+5

| EPE=Qatar-5

| NSTED=Qatar-5

}}

Qatar-5 is a faint G-dwarf star that hosts a planet in the constellation Andromeda. With an apparent 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.

Properties

This star is a relatively young star with an age of only 5.47 billion years. At this age, it is still on the main sequence. Qatar-5 has 112.8% the mass of the Sun, and 107.6% the latter's radius. Despite all of this, it has 113% of the Sun's luminosity, which corresponds to an effective temperature of {{val|5,746|ul=K|fmt=commas}}. Qatar-5 rotates at a rate of {{val|10.4|u=km/s}}.

Planetary system

In 2016, the Qatar Exoplanet Survey discovered a planet around this star.

{{Orbitbox planet begin

|table_ref=

}}

{{Orbitbox planet

|exoplanet=b

|mass=4.32{{±|0.18}}

|semimajor=0.04127{{±|0.00067}}

|period=2.8792319

|radius=1.107{{±|0.064}}

|inclination={{val|88.74|0.87}}

|eccentricity=0

}}

{{Infobox planet

| extrasolarplanet = yes

| name = Qatar-5b

| image =

| image_alt =

| caption =

| apsis = astron

| discovery_ref =

| discoverer = Alsubai et al. 2019

| discovery_site =

| discovered = 2016

| discovery_method = Transit

| alt_names =

| periastron =

| apoastron =

| semimajor = 0.04127 ± 0.00067 au

| eccentricity = 0

| inclination = 88.74 ± 0.87°

| period = 2.8792319 d

| long_periastron =

| time_periastron =

| semi-amplitude = 568 ± 15 m/s

| mass = {{Jupiter mass|4.32 ± 0.18}}

| mean_radius = {{Jupiter radius|1.107 ± 0.064}}

| density = 3.95 ± 0.58 g cm⁻³

| surface_gravity =

| single_temperature = 1415 ± 31 K

}}

Qatar-5b

Qatar-5b is a Hot Jupiter orbiting the star Qatar-5 located in Andromeda constellation.{{Cite web|url=https://www.universeguide.com/star/qatar5|title=Qatar-5|website=Universe Guide|date=15 September 2018 |language=en|access-date=2019-12-27}} It orbits its star every 2.87 days. It was discovered in 2016 by the Qatar Exoplanet Survey (QES).{{Cite web|url=http://phys.org/news/2016-06-astronomers-qatar-exoplanets.html|title = Astronomers discover three 'Qatar' exoplanets}}

=Discovery=

This planet was discovered by QES along with Qatar-3b and Qatar-4b. The light curves of the planet's respective host stars have been observed as well during the survey, along with their stellar properties{{Cite journal|last1=Alsubai|first1=Khalid|last2=Mislis|first2=Dimitris|last3=Tsvetanov|first3=Zlatan I.|last4=Latham|first4=David W.|last5=Bieryla|first5=Allyson|last6=Buchhave|first6=Lars A.|last7=Esquerdo|first7=Gilbert A.|last8=Bramich|first8=D. M.|last9=Pyrzas|first9=Stylianos|last10=Vilchez|first10=Nicolas P. E.|last11=Mancini|first11=Luigi|date=2017-04-01|title=Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b|journal=The Astronomical Journal|volume=153|issue=4 |pages=200|doi=10.3847/1538-3881/aa6340|doi-access=free |arxiv=1606.06882 |bibcode=2017AJ....153..200A |issn=0004-6256}}

=Properties=

==Orbit==

This planet is another typical hot Jupiter. It orbits very close to its star with a period of 2 days, 21 hours, 6 minutes, and 5.6 seconds.{{Cite web|title=Convert a Decimal Time Amount to Days, Hours, Minutes and Second|url=https://www.spikevm.com/calculators/conversions/decimal-day-hrs-min-sec.php|access-date=2021-03-25|website=www.spikevm.com}} This corresponds with an orbital distance of 0.04127 AU, which is about 10 times closer to its star than Mercury is to the Sun. With an eccentricity of 0, this suggests that Qatar-5b is on a perfectly circular orbit.

==Physical properties==

Qatar-5b is a massive planet, with 4.32 times the mass of Jupiter, 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.

References

{{reflist|refs=

{{cite journal | title=Qatar Exoplanet Survey: Qatar-3b, Qatar-4b, and Qatar-5b | last1=Alsubai | first1=Khalid | last2=Mislis | first2=Dimitris | last3=Tsvetanov | first3=Zlatan I. | last4=Latham | first4=David W. | last5=Bieryla | first5=Allyson | last6=Buchhave | first6=Lars A. | last7=Esquerdo | first7=Gilbert A. | last8=Bramich | first8=D. M. | last9=Pyrzas | first9=Stylianos | last10=Vilchez | first10=Nicolas P. E. | last11=Mancini | first11=Luigi | last12=Southworth | first12=John | last13=Evans | first13=Daniel F. | last14=Henning | first14=Thomas | last15=Ciceri | first15=Simona | display-authors=1 | journal=The Astronomical Journal | volume=153 | issue=4 | at=200 | year=2017 | arxiv=1606.06882 | bibcode=2017AJ....153..200A | doi=10.3847/1538-3881/aa6340 | s2cid=119214858 | doi-access=free }}

}}

Category:Andromeda (constellation)

Category:G-type main-sequence stars

Category:Planetary transit variables

Category:Planetary systems with one confirmed planet