Star · M4.5 V
GJ 3988
GJ 3988 is a main-sequence star of spectral type M4.5 V in the constellation Draco, 32.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Draco |
|---|---|
| Distance | 32.3 light-years (9.91 pc) |
| Apparent magnitude | magnitude 13.56 |
| Absolute magnitude | magnitude 13.58 |
| Spectral type | M4.5 V |
| Surface temperature | 3,270 K |
| Luminosity | 0.00403 L☉ |
| Radius | 0.197 R☉ |
| Mass | 0.184 M☉ |
| Metallicity [Fe/H] | -0.12 |
| Right ascension (J2000) | 17h 03m 23.8s |
| Declination (J2000) | +51° 24′ 21″ |
| Space velocity (relative to the Sun) | 29.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.56. Visible from the whole Northern Hemisphere and south to latitude 39° S. North of latitude 39° 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 1994. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 573 thousand years.
The Sun seen from there
From a planet around GJ 3988, the Sun would look like a star of magnitude 4.81, in the direction where our sky has the constellation Pictor. It would be visible to the naked eye.
Planets
- GJ 3988 b 6.94-day orbit · 1.74 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.