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Stellar HostProfile

HD 220773

F9 • 50.51 pc

Records

6

literature rows

Planets

1

system count

References

7

distinct source labels

HD: HD 220773HIP: HIP 115697TIC: TIC 354326161

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: Robertson et al. 2012 • System source: TICv8

Temperature

5940 K

5932 to 5995

4 values • 4 distinct

Mass

1.16 Msun

1.09 to 1.16

3 values • 3 distinct

Age

4.40 Gyr

single adopted value

1 values • 1 distinct

Distance

50.51 pc

single adopted value

6 values • 1 distinct

Spectral Type

F9

Multiple classifications reported

F9 (1), G0 (1)

Planets

1

Stable across source rows

1

System Layout

Known planets

1 planets linked to this host

HD 220773 b

Radial Velocity

◌

Discovery

2011

Period

3724.7 days

Radius

—

Mass

460.8 M⊕

Eq. Temp

—

HD 220773 and Its Planet

HD 220773 is an F9 star 165 light-years away. It is 4.4 billion years old, has a mass of 1.16 solar masses, and a temperature of 5940 K. Its mass estimate is larger than the Sun's, and its reported temperature is hotter than the Sun's. One planet orbits this star.

That planet, HD 220773 b, was discovered in 2011 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. Its minimum mass is 461 Earth masses, a lower bound on its true mass, and roughly 1.45 times Jupiter's mass. Its minimum mass is larger than Earth's. HD 220773 b takes 3720 days to complete one orbit.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

6

Stellar refs

6

System refs

1

Distancestable

6 values • 1 distinct

Parallaxstable

6 values • 1 distinct

Temperaturedisputed

4 values • 4 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

3 values • 2 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
——————50.51Nordstrom et al. 2004TICv8
59401.16—4.40—F950.51Robertson et al. 2012TICv8
5932—1.68—0.50—50.51Gaia DR2TICv8
—————G050.51Cannon & Pickering 1918TICv8
59951.15————50.51Santos et al. 2013TICv8
5956.21.091.66—0.50—50.51TICv8TICv8