Star · K
Kepler-444
Kepler-444 is a main-sequence star of spectral type K in the constellation Lyra, 119.2 light-years from the Sun. It is orbited by 5 confirmed exoplanet(s).
| Other names | HIP 94931 |
|---|---|
| Constellation | Lyra |
| Distance | 119.2 light-years (36.6 pc) |
| Apparent magnitude | magnitude 8.87 |
| Absolute magnitude | magnitude 6.06 |
| Spectral type | K |
| Surface temperature | 5,050 K |
| Luminosity | 0.376 L☉ |
| Radius | 0.752 R☉ |
| Mass | 0.758 M☉ |
| Age | 11.2 billion years |
| Metallicity [Fe/H] | -0.55 |
| Right ascension (J2000) | 19h 19m 00.6s |
| Declination (J2000) | +41° 38′ 05″ |
| Space velocity (relative to the Sun) | 163.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.87); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 48° S. North of latitude 48° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1907. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around Kepler-444, the Sun would look like a star of magnitude 7.64, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- Kepler-444 b 3.6-day orbit · 0.403 R⊕
- Kepler-444 c 4.55-day orbit · 0.497 R⊕
- Kepler-444 d 6.19-day orbit · 0.53 R⊕
- Kepler-444 e 7.74-day orbit · 0.546 R⊕
- Kepler-444 f 9.74-day orbit · 0.741 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 93350 9.69 light-years
- PSO J284.7214+39.3189 10.4 light-years
- HIP 96735 10.9 light-years
- HIP 97337 13.1 light-years
- Kepler-42 13.9 light-years
- HIP 92122 14.7 light-years
- 16 Lyr 15.1 light-years
- 2MASS J18392735+4424484 16.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.