subgiant · B9IV
Sualocin
Sualocin is a blue subgiant (spectral type B9IV) about 254 light-years away. With an apparent magnitude of 3.77 it is easy to see with the naked eye under a dark sky.
The brightest star in Delphinus. Read backwards its name gives "Nicolaus" – a joke by an assistant at Palermo Observatory (Niccolò Cacciatore).
Its light output is roughly 160 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).
From Germany (52° N) it rises and sets; it is best seen in the evening in July.
Key facts
- Distance
- ≈ 254 light-years
- Spectral type
- B9IV (subgiant)
- Colour
- Blue
- Apparent magnitude
- 3.77 mag
- Luminosity
- ≈ 160 × Sun
- Position
- Right ascension 20h 40m, declination 15.9°
More well-known stars
Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.