Star · M4V
HQT-9
HQT-9 is a main-sequence star of spectral type M4V in the constellation Aquarius, 195.7 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 195.7 light-years (60.0 pc) |
| Apparent magnitude | magnitude 26.49 |
| Absolute magnitude | magnitude 22.60 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.43 × 10⁻⁶ L☉ |
| Radius | 0.00451 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 19m 03.1s |
| Declination (J2000) | +0° 24′ 19″ |
| Space velocity (relative to the Sun) | 62.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.49. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1830. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around HQT-9, the Sun would look like a star of magnitude 8.72, in the direction where our sky has the constellation Sextans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 109748 8.66 light-years
- HIP 110358 10.1 light-years
- HIP 109650 10.7 light-years
- HIP 110385 16.2 light-years
- HIP 109073 16.8 light-years
- HIP 110292 17.6 light-years
- HIP 109144 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.