bright giant · B1II

Mirzam

Mirzam is a blue bright giant (spectral type B1II) about 500 light-years away. With an apparent magnitude of 1.98 it is a very bright, conspicuous star.

A star in Canis Major. Its name means "the herald", because it rises shortly before Sirius.

Its light output is roughly 3,200 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 December.

▶ Open the night sky

Key facts

Distance
≈ 500 light-years
Spectral type
B1II (bright giant)
Colour
Blue
Apparent magnitude
1.98 mag
Luminosity
≈ 3,200 × Sun
Position
Right ascension 6h 23m, declination -18°

More well-known stars

Data: Hipparcos / HYG catalogue (CC BY-SA 4.0). Luminosity and visibility are calculated estimates.