Star · G5
Nikawiy
Nikawiy is a giant star of spectral type G5 in the constellation Boötes, 342.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HD 136418 · HIP 74961 |
|---|---|
| Constellation | Boötes |
| Distance | 342.4 light-years (105.0 pc) |
| Apparent magnitude | magnitude 7.88 |
| Absolute magnitude | magnitude 2.77 |
| Spectral type | G5 |
| Surface temperature | 4,990 K |
| Luminosity | 6.8 L☉ |
| Radius | 3.78 R☉ |
| Mass | 1.48 M☉ |
| Age | 4.0 billion years |
| Metallicity [Fe/H] | -0.11 |
| Right ascension (J2000) | 15h 19m 06.2s |
| Declination (J2000) | +41° 43′ 59″ |
| Space velocity (relative to the Sun) | 97.3 km/s |
In the sky
Too faint for the naked eye (magnitude 7.88); 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 May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1684. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.1 million years.
The Sun seen from there
From a planet around Nikawiy, the Sun would look like a star of magnitude 9.94, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Planets
- HD 136418 b 464-day orbit · 13.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.