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Bellatrix is a massive star with about 7.7 times the mass and 5.8 times the radius of the Sun. [9] It has an estimated age of approximately 25 million years [12] —old enough for a star of this mass to consume the hydrogen at its core and begin to evolve away from the main sequence into a giant star. [26]
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Bellatrix is a bluish main sequence star with the stellar classification B2 V. It has the spectrum of a giant, which is why a number of sources cite the spectral type of a giant, B2 III. Both the Simbad and NED databases give the spectral type B2 V, indicating that the star is still a hydrogen-fusing dwarf. Bellatrix has a mass 8.6 times that of th...
Bellatrix is one of the four Orion stars selected for navigation. The other three navigational stars in the constellation are the supergiants Rigel, Betelgeuse and Alnilam. Bellatrix was once believed to belong to the Orion OB1 association, like the stars of Orion’s Belt (Alnilam, Alnitak and Mintaka). However, at a distance of 250 light years, it ...
The name Bellatrix comes from the Latin bellātrix, meaning “female warrior.” The name was first mentioned in the works of the 9th century Persian astronomer Abu Maʿshar and their translations from Arabic into Castilian by John of Seville in the 12th century. In Abu Ma’shar’s writings, the name applied to Capella, but was switched to Gamma Orionis b...
Bellatrix is very easy to find because it is bright and part of one of the most familiar shapes in the night sky. It outlines Orion’s hourglass pattern with the bright Rigel, Betelgeuse, Saiph and the three stars of Orion’s Belt, Alnitak, Alnilam and Mintaka. Bellatrix marks the left shoulder of Orion, appearing right from our perspective, and is l...
Bellatrix is located in the constellation Orion. Representing the celestial Hunter, Orion is one of the most recognizable constellations in the sky. Known since prehistory, it is home to two of the 10 brightest stars in the sky – Rigel and Betelgeuse – and a number of well-known deep sky objects. These include the Orion Nebula (Messier 42), the nea...
- 0.21
- 0.86
- B2 V (B2 III)
- suspected
Jan 20, 2020 · When compared to our sun’s mass, Bellatrix has 8.6 times more mass than our sun. Other Characteristics. Due to its very high temperatures, almost 4 times hotter than our sun at 22.000 Kelvin / 39.140 degrees Fahrenheit / 21.726 degrees Celsius, the star has a blue-white hue that typically occurs with B-type stars.
Bellatrix is a bluish main sequence star with the stellar classification B2 V. Some sources cite the spectral type of a giant, B2 III. It has a mass that is 8.6 times that of the Sun and a radius that is 5.75 times that of the Sun. It shines with a luminosity that is 9,211 times that of the Sun and has a surface temperature of 21,700 Kelvin.
Jan 24, 2024 · The star’s surface is heated to a roaring 21,750 kelvin (40,000°F) — a difficult quantity to comprehend even though there are plenty of stars even hotter. By comparison, the Sun’s surface is about 5800K, giving it a white/yellow color. If Earth were orbiting Bellatrix, lighting conditions would be unusually blue.
Apr 26, 2023 · In terms of age, the Bellatrix star is estimated to be around 25 billion years old, much older than the Sun's 4.6 billion years. The Bellatrix star rotates much faster than the Sun, with a speed of 250 km/s compared to the Sun's 2 km/s. The Bellatrix star also has a unique shape, with a flattening at the poles of 0.88, making it slightly ...
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Of all the bright stars in Orion, Bellatrix is the first to rise in the eastern skies. The name Bellatrix derives from a Latin word meaning “female warrior.”. Its Arabic name, Al Najīd, means “the leader,” because it is the first of the constellation’s bright stars to rise in the sky. In Arab legends, the star is also called a ...
