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Stellar HostProfile

Qatar-7

F4 V • 706.0 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 291685334

Approximate color

from effective temperature

Canonical Summary

Adopted host values from one source row

Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.

Stellar source: Alsubai et al. 2019 • System source: TICv8

Temperature

6387 K

5790 to 6387

4 values • 3 distinct

Mass

1.41 Msun

1.17 to 1.41

2 values • 2 distinct

Radius

1.56 Rsun

1.56 to 1.60

4 values • 3 distinct

Age

1.69 Gyr

single adopted value

1 values • 1 distinct

Luminosity

0.56 log(Lsun)

0.42 to 0.56

3 values • 3 distinct

Distance

706.0 pc

single adopted value

4 values • 1 distinct

Spectral Type

F4 V

Consistent across records

F4 V (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 1.56 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

Qatar-7

1.56 R☉

System Layout

Known planets

1 planets linked to this host

Qatar-7 b

Transit

◌

Discovery

2019

Period

2.03 days

Radius

19.06 R⊕

Mass

597.5 M⊕

Eq. Temp

2053 K

Qatar-7: A Distant Star With One Known Planet

Qatar-7 is a star 2300 light-years away with one known planet in orbit. Its spectral type, F4 V, marks it as a main-sequence dwarf hotter than the Sun. The star's reported mass estimate is 1.41 solar masses and its radius estimate is 1.56 solar radii, both larger than the Sun's. Its reported temperature is 6390 K, hotter than the Sun's, and its age is 1.69 billion years.

The planet, Qatar-7 b, was discovered by transit in 2019. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Qatar-7 b is a Jupiter-like planet, a size class that exceeds 4 times Earth's radius; its radius estimate is 19.1 Earth radii, larger than Earth's.

Qatar-7 b completes an orbit in 2.03 days. Its reported mass estimate is 598 Earth masses, larger than Earth's and roughly 1.88 times Jupiter's mass. Its mean density is 0.476 g/cm³, 0.0864 times Earth's.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 3 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

4 values • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
63871.411.561.690.56F4 V706.0Alsubai et al. 2019TICv8
6161—1.57———706.0ExoFOPTICv8
5790—1.60—0.42—706.0Gaia DR2TICv8
61611.171.57—0.50—706.0TICv8TICv8