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Stellar HostProfile

HD 74698

G5 V • 52.06 pc

Records

2

literature rows

Planets

2

system count

References

3

distinct source labels

HIP: HIP 42532TIC: TIC 308087983HD: HD 74698

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: Frensch et al. 2023 • System source: TICv8

Temperature

5783 K

5783 to 5825.4

2 values • 2 distinct

Mass

1.04 Msun

1.04 to 1.05

2 values • 2 distinct

Radius

1.33 Rsun

1.32 to 1.33

2 values • 2 distinct

Age

7.85 Gyr

single adopted value

1 values • 1 distinct

Luminosity

0.25 log(Lsun)

0.25 to 0.26

2 values • 2 distinct

Distance

52.06 pc

single adopted value

2 values • 1 distinct

Spectral Type

G5 V

Consistent across records

G5 V (1)

Planets

2

Stable across source rows

2

Scale Comparison

Radius against the Sun

Current adopted radius: 1.33 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 74698

1.33 R☉

System Layout

Known planets

2 planets linked to this host

HD 74698 b

Radial Velocity

◌

Discovery

2023

Period

15.02 days

Radius

—

Mass

23 M⊕

Eq. Temp

—

HD 74698 c

Radial Velocity

◌

Discovery

2023

Period

3449 days

Radius

—

Mass

126 M⊕

Eq. Temp

—

HD 74698 and Its Two Known Planets

HD 74698 is a G-type dwarf star 170 light-years away. Its spectral type, G5 V, marks it as Sun-like, and it is 7.85 billion years old, 1.04 solar masses, 1.33 solar radii, and 5780 K in temperature. Two planets are known to orbit it, both discovered in 2023 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion and, through repeated wobbles, reveals the planet and its orbital period.

HD 74698 b has a minimum mass of 23 Earth masses and an orbital period of 15 days. HD 74698 c, the more massive of the pair, has a minimum mass of 126 Earth masses and an orbital period of 3450 days.

The star's mass estimate is larger than the Sun's, and its radius estimate is also larger. Among the listed planets, HD 74698 b has the shortest period, at 15 days, while HD 74698 c has the longest, at 3450 days. HD 74698 b also has the smallest minimum mass, and HD 74698 c the largest.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

2

Stellar refs

2

System refs

1

Distancestable

2 values • 1 distinct

Parallaxstable

2 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

2 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
57831.041.337.850.25G5 V52.06Frensch et al. 2023TICv8
5825.41.051.32—0.26—52.06TICv8TICv8