Temperature
5310 K
5010 to 5310
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Stellar HostProfile
HD 41004 A
Unclassified star • 36.69 pc
Records
6
literature rows
Planets
2
system count
References
7
distinct source labels
TIC: TIC 219152539HD: HD 41004 AHIP: HIP 28393 A
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: Ghezzi et al. 2010 • System source: TICv8
Mass
0.95 Msun
0.70 to 0.95
Radius
0.85 Rsun
0.85 to 1.06
Age
1 Gyr
0.22 to 1.60
Luminosity
-0.29 log(Lsun)
-0.29 to -0.19
Distance
36.69 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.85 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 41004 A
0.85 R☉
System Layout
Known planets
1 planets linked to this host
HD 41004 A b
Radial Velocity
◌
Discovery
2004
Period
963 days
Radius
—
Mass
807.2 M⊕
Eq. Temp
—
HD 41004 A and Its Lone Known Planet
HD 41004 A is a K-type dwarf 120 light-years away, with a reported upper limit of 1 billion years on its age and 0.95 solar masses. Its radius estimate is 0.85 solar radii, smaller than the Sun's, and its 5310 K temperature is cooler than the Sun's. One planet has been found in orbit around this star.
That planet, HD 41004 A b, was discovered in 2004 by the radial velocity method, which tracks the wobble a planet's gravity induces in its star's motion. Its minimum mass is 807 Earth masses, larger than Earth's and roughly 2.54 times Jupiter's mass. It completes one orbit every 963 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | 0.22 | — | — | 36.69 | Sanz-Forcada et al. 2010 | TICv8 |
| 5185.4 | — | 1.06 | — | — | — | 36.69 | TICv8 | TICv8 |
| 5310 | 0.95 | 0.85 | 1 | -0.29 | — | 36.69 | Ghezzi et al. 2010 | TICv8 |
| — | — | — | — | — | — | 36.69 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | — | 36.69 | Zucker et al. 2004 | TICv8 |
| 5010 | 0.70 | — | 1.60 | -0.19 | K1/K2 V | 36.69 | Zucker et al. 2003 | TICv8 |