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Stellar HostProfile

V0391 Peg

Unclassified star • 1196.0 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 397595169

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: Silvotti et al. 2007 • System source: TICv8

Temperature

29300 K

8868.7 to 29300

3 values • 2 distinct

Mass

0.50 Msun

0.47 to 0.50

2 values • 2 distinct

Radius

0.23 Rsun

0.20 to 0.23

2 values • 2 distinct

Age

10 Gyr

single adopted value

1 values • 1 distinct

Distance

1196.0 pc

single adopted value

4 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.23 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

V0391 Peg

0.23 R☉

System Layout

Known planets

1 planets linked to this host

V0391 Peg b

Pulsation Timing Variations

◌

Discovery

2007

Period

1170 days

Radius

—

Mass

1017.1 M⊕

Eq. Temp

—

V0391 Peg and Its Planet

V0391 Peg is a star 3900 light-years away with a spectral type of sdBV. It has an age reported as a lower limit of 10 billion years, a mass of 0.5 solar masses, a radius of 0.23 solar radii, and a temperature of 29300 K. Its reported mass and radius estimates are smaller than the Sun's, while its reported temperature is hotter than the Sun's. One planet is known to orbit this host.

That planet, V0391 Peg b, was discovered in 2007 using Pulsation Timing Variations. Its minimum mass is 1020 Earth masses, larger than Earth's and roughly 3.2 times Jupiter's mass. It completes an orbit every 1170 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

3 values • 2 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

2 values • 2 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
—————sdBV1196.0Ostensen et al. 2001TICv8
8868.7—————1196.0Gaia DR2TICv8
293000.500.2310——1196.0Silvotti et al. 2007TICv8
293000.470.20—1.43—1196.0TICv8TICv8