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BP Crucis
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Star BP Crucis

Binary star BP Crucis is located 9593 light years away from the Sun. It consists of a blue hypergiant and a neutron star. For now, there are no known exoplanets in this star system.
Sun distance
9593 light years
galaxy map

BP Crucis A

Blue hypergiant
Spectral class: B1 Ia

Location +

Ascension iconRight ascension: 12h 26m 37.561s
Declination iconDeclination: -62° 46' 13.16'' (southern hemisphere)
Parallax iconParallax: 0.34
Distance iconSun distance: 9592.823 ly | 2941.2 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 4300 % M Sun
| 45046 M Jupiter
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Star mass
Mass of the star BP Crucis A is 43 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 7000 % R Sun
| 696.6 R Jupiter
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Star size
Radius of the star BP Crucis A is 70 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 18100 K | 3.13 T Sun
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Star temperature
Surface temperature of BP Crucis A is 18100 K, which is 313 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
luminosity icon
Luminosity: 470000 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

BP Crucis B

Neutron star

Location +

Distance iconDistance from the primary: 0.5 AU

Basic characteristic

icon weight
Mass: 185 % M Sun
| 1938 M Jupiter
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Star mass
Mass of the star BP Crucis B is 43 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide

BP Crucis system structure

 BP Crucis A
BP Crucis B 0.5 AU
More about BP Crucis
       BP Crucis can be found in southern celestial hemisphere.
Other designations of this star
BP Cru, Hen 3-788, Wray 15-977, 2MASS J12263756-6246132, GX 301-2, AAVSO 1221-62

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