Star · G5
HD 75784
HD 75784 is a giant star of spectral type G5 in the constellation Cancer, 277.6 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 43569 |
|---|---|
| Constellation | Cancer |
| Distance | 277.6 light-years (85.1 pc) |
| Apparent magnitude | magnitude 7.84 |
| Absolute magnitude | magnitude 3.19 |
| Spectral type | G5 |
| Surface temperature | 4,870 K |
| Luminosity | 5.7 L☉ |
| Radius | 3.4 R☉ |
| Mass | 1.26 M☉ |
| Age | 4.0 billion years |
| Metallicity [Fe/H] | 0.25 |
| Right ascension (J2000) | 8h 52m 23.9s |
| Declination (J2000) | +13° 14′ 00″ |
| Space velocity (relative to the Sun) | 75.2 km/s |
In the sky
Too faint for the naked eye (magnitude 7.84); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 77° S. North of latitude 77° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1748. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around HD 75784, the Sun would look like a star of magnitude 9.48, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Planets
- HD 75784 b 341-day orbit · 13.8 R⊕
- HD 75784 c 7,900-day orbit · 12.8 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gakyid 16.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.