Star · A7 V
MASCARA-4
MASCARA-4 is a main-sequence star of spectral type A7 V in the constellation Carina, 548.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Carina |
|---|---|
| Distance | 548.8 light-years (168.2 pc) |
| Apparent magnitude | magnitude 8.22 |
| Absolute magnitude | magnitude 2.09 |
| Spectral type | A7 V |
| Surface temperature | 7,800 K |
| Luminosity | 12.2 L☉ |
| Radius | 1.79 R☉ |
| Mass | 1.75 M☉ |
| Age | 0.8 billion years |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 9h 50m 19.2s |
| Declination (J2000) | −66° 06′ 50″ |
| Space velocity (relative to the Sun) | 14.1 km/s |
In the sky
Too faint for the naked eye (magnitude 8.22); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 24° N. South of latitude 24° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1477. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.7 million years.
The Sun seen from there
From a planet around MASCARA-4, the Sun would look like a star of magnitude 10.96, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Planets
- MASCARA-4 b 2.82-day orbit · 17 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.