Temperature
8000 K
7918 to 8000
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Stellar HostProfile
HIP 99770
A5-A6 • 40.08 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
HIP: HIP 99770TIC: TIC 10988057
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: Currie et al. 2023 • System source: TICv8
Mass
1.85 Msun
1.85 to 1.90
Age
0.26 Gyr
single adopted value
Luminosity
1.14 log(Lsun)
1.12 to 1.14
Distance
40.08 pc
single adopted value
Spectral Type
A5-A6
Consistent across records
Planets
1
Stable across source rows
System Layout
Known planets
1 planets linked to this host
HIP 99770 b
Imaging
◌
Discovery
2023
Period
—
Radius
—
Mass
5403.1 M⊕
Eq. Temp
—
HIP 99770 and Its Giant Planet
HIP 99770 is a star 131 light-years from Earth, with one known planet in orbit around it. The host is an A5–A6 star with a mass of 1.85 solar masses and a temperature of 8000 K; its mass is larger than the Sun's and its temperature is hotter than the Sun's. Its age is 0.264 billion years.
The single planet, HIP 99770 b, was discovered by imaging in 2023. Its mass is 5400 Earth masses, an estimate larger than Earth's and roughly 17 times Jupiter's mass. No orbital period is reported for HIP 99770 b.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusstable
Agestable
Luminositydisputed
Surface Gravitystable
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | 1.90 | — | — | — | — | 40.08 | Winterhalder et al. 2025 | TICv8 |
| 7918 | 1.90 | 1.94 | — | 1.12 | — | 40.08 | TICv8 | TICv8 |
| 8000 | 1.85 | — | 0.26 | 1.14 | A5-A6 | 40.08 | Currie et al. 2023 | TICv8 |