Space Codex / Exoplanet reference
Published exoplanet measurements
HD 207496 b
HD 207496 b orbits HD 207496 once every 6.44101 days. The system is about 76.9925 light-years from Earth.
Archive retrieved November 1, 2026 (America/New_York). The selected paper and archive update dates appear below.
The recorded orbit
The selected archive solution gives an orbital period of 6.44101 days, or 0.0176345 Earth years. Its reported semimajor axis is 0.0629 AU. That orbital scale is 0.162491 times Mercury's semimajor axis. The listed eccentricity is 0.231. Using those central values, the model's nearest and farthest star–planet distances are about 0.0483701 and 0.0774299 AU. These are derived comparisons, without propagated errors. The period measures a year on this planet. It does not establish the length of its rotation or the duration of daylight.
Read how orbital period, size, and eccentricity fit together.
Size and mass
The radius parameter is 2.25 (+0.12 / −0.1) Earth radii. Radius describes size; it does not specify the mass or the atmospheric composition. The mass parameter is 6.1 (+1.6 / −1.6) Earth masses. Its archive provenance is Mass. The source lists a bulk-density parameter of 3.17 (+0.97 / −0.91) g/cm³. Different interior mixtures can overlap in density; the value does not identify a unique surface.
The host star and received light
The host is cataloged as HD 207496. The selected row gives spectral type K2.5 V. Its reported effective temperature is 4819 K. Its reported radius is 0.769 solar radii. Its reported mass is 0.8 solar masses. The planet's incident-flux parameter is 72.9 (+8.5 / −7.5) times Earth's received stellar flux. The equilibrium-temperature entry is 743 (+26 / −26) K. This is a model quantity, not a measured surface temperature. The available stellar and orbital entries do not establish a breathable atmosphere, surface water, or life.
What a habitable-zone claim does and does not mean · How a star changes over time.
Other planets around HD 207496
The fetched archive contains 1 selected default planet record for this host. This is the retrieved record set, and additional or revised discoveries may appear in later research.
| Planet | Period (days) | Radius (Earth) | Mass parameter (Earth) | Mass definition |
|---|---|---|---|---|
| HD 207496 b | 6.44101 (+1.1e-05 / −1.1e-05) | 2.25 (+0.12 / −0.1) | 6.1 (+1.6 / −1.6) | Mass |
Earth comparison
| Quantity | Reported value or conversion | Comparison |
|---|---|---|
| Orbital period | 6.44101 days | 0.0176345 Earth years |
| System distance | 23.606 parsecs | 76.9925 light-years |
| Orbital scale | 0.0629 (+0.0011 / −0.0011) | AU; Earth = 1 |
| Radius | 2.25 (+0.12 / −0.1) | Earth radii; Earth = 1 |
| Mass parameter | 6.1 (+1.6 / −1.6) | Earth masses; check mass definition |
| Received stellar flux | 72.9 (+8.5 / −7.5) | Earth flux; Earth = 1 |
Conversions use rounded central values. They are navigation aids for the data, not additional observations. Uncertainties for the original parameters remain in the next table.
Measurement table
| Parameter | Value and reported uncertainty | Unit or definition |
|---|---|---|
| Orbital period | 6.44101 (+1.1e-05 / −1.1e-05) | days |
| Semimajor axis | 0.0629 (+0.0011 / −0.0011) | AU |
| Radius | 2.25 (+0.12 / −0.1) | Earth radii |
| Mass parameter | 6.1 (+1.6 / −1.6) | Earth masses |
| Orbital eccentricity | 0.231 (+0.042 / −0.049) | dimensionless |
| Orbital inclination | 88.79 (+0.8 / −0.75) | degrees |
| Equilibrium temperature | 743 (+26 / −26) | K; model estimate |
| Incident flux | 72.9 (+8.5 / −7.5) | Earth flux |
| Bulk density | 3.17 (+0.97 / −0.91) | g/cm³ |
| Host effective temperature | 4819 (+94 / −94) | K |
| Host radius | 0.769 (+0.026 / −0.026) | solar radii |
| Host mass | 0.8 (+0.04 / −0.04) | solar masses |
| Host metallicity | 0.095 (+0.038 / −0.038) | dex; archive abundance definition |
| Host age | 0.52 (+0.26 / −0.26) | billion years |
| Host luminosity | Not reported in this solution | log10 solar luminosity |
| Host surface gravity | 4.507 (+0.04 / −0.04) | log10 cm/s² |
| Host rotation period | 12.36 | days |
| System distance | 23.606 (+0.0179 / −0.0179) | parsecs |
Parentheses show the reported upper and lower uncertainties when both are supplied. Bounds are explicitly labeled. A missing entry means unavailable in this solution, not zero. The confidence convention belongs to the source paper.
Research record and limitations
| Record | Value |
|---|---|
| Planetary reference | Barros et al. 2023 |
| Discovery method | Transit |
| Discovery year | 2023 |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Mass provenance | Mass |
| Host stars in system | 1 |
| Archive system planet count | 1 |
| Planetary solution publication date | 2023-05 |
| Row update date | 2023-05-26 |
| Archive release date | 2023-05-26 |
Source: NASA Exoplanet Archive overview for HD 207496 b, Planetary Systems table, default solution. The collection excludes entries flagged controversial at retrieval. A selected default is a published reference choice, not a claim that every parameter is the latest estimate in all literature.
This profile documents measurements and their scope. It is separate from the 3D planet catalog and does not create a sponsorship placement or a new explorer destination.