Exoplanet · Neptune-like planet
HD 99492 c
HD 99492 c is a Neptune-like planet orbiting the star HD 99492. Its year lasts 95.2 Earth days. It was discovered in 2023 by the Radial Velocity method.
| Host star | HD 99492 |
|---|---|
| Distance | 59.4 light-years (18.2 pc) |
| Orbital period | 95.2 days |
| Eccentricity | 0.063 |
| Radius | 4.42 R⊕ · 0.394 R♃ |
| Mass (minimum) | 17.9 M⊕ · 0.0563 M♃ |
| Density | 1.14 g/cm³ |
| Discovery method | Radial Velocity |
| Discovery year | 2023 |
| Discovered by | Roque de los Muchachos Observatory |
In the sky
Too faint for the naked eye (magnitude 7.58); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 87° S. It stands highest at midnight in March, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1967. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
Planets in the same system
- HD 99492 b 17.1-day orbit · 5.44 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.