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Stellar HostProfile

BD+20 274

K5 III • 1322.5 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 60923874

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: Gettel et al. 2012 • System source: TICv8

Temperature

4296 K

4296 to 4391

4 values • 3 distinct

Mass

0.80 Msun

0.80 to 1.17

2 values • 2 distinct

Radius

17.30 Rsun

17.30 to 43.41

3 values • 3 distinct

Luminosity

1.96 log(Lsun)

1.96 to 2.73

2 values • 2 distinct

Distance

1322.5 pc

single adopted value

4 values • 1 distinct

Spectral Type

K5 III

Consistent across records

K5 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 17.30 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

BD+20 274

17.30 R☉

System Layout

Known planets

1 planets linked to this host

BD+20 274 b

Radial Velocity

◌

Discovery

2012

Period

578.2 days

Radius

—

Mass

1334.9 M⊕

Eq. Temp

—

BD+20 274 b: A Giant Planet Orbiting a Cool, Distant Star

BD+20 274 is a star located 4310 light-years away, and it hosts one known planet. The star is a K5 III type with a mass of 0.8 solar masses and a radius of 17.3 solar radii, making its reported radius estimate larger than the Sun's. Its temperature is 4300 K, which is cooler than the Sun's.

The planet BD+20 274 b was discovered in 2012 using 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. BD+20 274 b has a minimum mass of 1330 Earth masses, a lower bound on its true mass. This minimum mass is larger than Earth's and is roughly 4.2 times Jupiter's mass. The planet completes one orbit in 578 days.

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

3 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitydisputed

3 values • 2 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
43911.17————1322.5Mortier et al. 2013TICv8
4296—43.41———1322.5TICv8TICv8
4322.6—41.32—2.73—1322.5Gaia DR2TICv8
42960.8017.30—1.96K5 III1322.5Gettel et al. 2012TICv8