Star · K5III
TOI-4458
TOI-4458 is a giant star of spectral type K5III in the constellation Draco, 1,683 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Draco |
|---|---|
| Distance | 1,683 light-years (516.0 pc) |
| Apparent magnitude | magnitude 11.28 |
| Absolute magnitude | magnitude 2.72 |
| Spectral type | K5III |
| Surface temperature | 6,150 K |
| Luminosity | 5.34 L☉ |
| Radius | 1.96 R☉ |
| Mass | 1.47 M☉ |
| Age | 2.8 billion years |
| Metallicity [Fe/H] | 0.17 |
| Right ascension (J2000) | 16h 48m 30.2s |
| Declination (J2000) | +74° 45′ 50″ |
| Space velocity (relative to the Sun) | 63.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.28. Visible from the whole Northern Hemisphere and south to latitude 15° S. North of latitude 15° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 343. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 30 million years.
The Sun seen from there
From a planet around TOI-4458, the Sun would look like a star of magnitude 13.39, in the direction where our sky has the constellation Mensa. It would be invisible to the naked eye.
Planets
- TOI-4458 b 3.94-day orbit · 12.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.