Astronomical evidence
HD 45364 b orbits HD 45364. The saved catalog gives an orbital period of 225.79 (+0.81/−0.76) days. Its discovery method is recorded as radial velocity. These quantities describe the real astronomical setting behind the illustration. HD 45364 b was detected through shifts in its star’s spectrum. Orbital motion changes the component of the star’s velocity along our line of sight, alternately shifting spectral features toward shorter and longer wavelengths. The signal constrains an orbit and a mass multiplied by the sine of the orbital inclination. The catalog radius of 9.03 Earth radii is calculated, not directly measured. The mass entry, 60.16491745 (+1.97054/−2.00232) Earth masses, is M sin i: a minimum mass unless the inclination is known. The source papers and full table retain the provenance of each parameter.
The illustrated viewpoint
The ice moon in the artwork is invented. Radial-velocity detection does not provide an image of the planet’s clouds, a moon census or a surface map.
The ice moon in the artwork is invented. Radial-velocity detection does not provide an image of the planet’s clouds, a moon census or a surface map. All depicted life and technology are fictional.
Catalog measurements & sources
Host: HD 45364. Snapshot: 25 September 2026. Errors, limits and source provenance are retained. Calculated values and model estimates are not direct measurements. Unknown is not zero; equilibrium temperature is not surface temperature.
| Quantity / unit | Value / reported errors | Source |
|---|---|---|
| Radius · Earth radii | 9.03 | Calculated Value |
| Mass · Earth masses | 60.1649 (+1.97054 / -2.00232) | Li et al. 2022 |
| Density · g/cm³ | 0.449 | Calculated Value |
| Orbital period · days | 225.79 (+0.81 / -0.76) | Li et al. 2022 |
| Orbital semimajor axis · AU | 0.6793 (+0.0016 / -0.0015) | Li et al. 2022 |
| Eccentricity | 0.067 (+0.016 / -0.016) | Li et al. 2022 |
| Inclination · degrees | Unknown | Not supplied |
| Irradiation · Earth flux | 1.3804 (+0.0076 / -0.0076) | Calculated Value |
| Equilibrium temperature · K | 301.69 (+3.59 / -3.59) | Calculated Value |
| Stellar effective temperature · K | 5466 (+59 / -32) | Li et al. 2022 |
| Stellar radius · Solar | 0.89 (+0.01 / -0.02) | Li et al. 2022 |
| Stellar mass · Solar | 0.82 (+0.05 / -0.05) | Li et al. 2022 |
| Stellar luminosity · log Solar | -0.19586 (+0.00136 / -0.00137) | Li et al. 2022 |
| Stellar age · Gyr | Unknown | Not supplied |
| Stellar metallicity · dex | -0.17 (+0.01 / -0.01) | Correia et al. 2009 |
| Distance · pc | 34.354 (+0.0376 / -0.0375) | TICv8 |