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Sirius is actually a binary star system, which means there are two stars (A & B).
Sirius A is 25 times more luminous that our Sun. It is estimated to be twice as large as our Sun.
It is a type A star and is thus classified as a between Sub Giant and Giant.
Sirius B is a white dwarf and has the mass of the Sun but the size of the Earth.
Both stars are spherical in shape.
Wiki User
∙ 15y ago
Sirius is a binary star system consisting of a main-sequence star (Sirius A) and a white dwarf companion (Sirius B). Sirius A is about 1.5 times the mass of the Sun and appears bright white to blue-white in color.
Wiki User
∙ 12y agoMultiple questions.
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What is the color of Sirius?
Sirius is a binary star system consisting of a white main-sequence star (Sirius A) and a faint white dwarf star (Sirius B). So, the color of Sirius is white.
How are Sirius and betelgeuse unlike?
Sirius and Betelgeuse are both bright stars in the night sky, but they differ in size, color, and temperature. Sirius is a white star, while Betelgeuse is a red supergiant. Betelgeuse is also much larger and cooler than Sirius.
Is the sirius star 10 times bigger then the sun?
No. In terms of diameter Sirius is 1.7 times the size of the sun.
What is the brightest star in southern sky in winter?
Sirius is the brightest star in the southern sky during winter. It is part of the constellation Canis Major and is known for its luminosity and distinct bluish-white color. Sirius is often referred to as the "Dog Star."
What is the star of the month February?
The star of the month of February is typically Sirius, the brightest star in the night sky. Sirius is part of the constellation Canis Major and is known for its incredible brightness and distinct blue-white color.
What is the color of Sirius?
Sirius is a binary star system consisting of a white main-sequence star (Sirius A) and a faint white dwarf star (Sirius B). So, the color of Sirius is white.
How are Sirius and betelgeuse unlike?
Sirius and Betelgeuse are both bright stars in the night sky, but they differ in size, color, and temperature. Sirius is a white star, while Betelgeuse is a red supergiant. Betelgeuse is also much larger and cooler than Sirius.
Is the sirius star 10 times bigger then the sun?
No. In terms of diameter Sirius is 1.7 times the size of the sun.
What is the size of the Sirius (A) star?
Multiple questions. See related questions.
How do you get the scale?
If Our Star Were the size of a Basketball, Sirius A (Main Sequence) Would be a size of A Teddy Bear.
How do you do scale?
If Our Star Were the size of a Basketball, Sirius A (Main Sequence) Would be a size of A Teddy Bear.
Is sirus an asteroid?
No, Sirius is not an asteroid. Sirius is a binary star system consisting of the brighter star, Sirius A, and its companion, Sirius B, which is a white dwarf star. It is the brightest star in the Earth's night sky.
What is the brightest star in southern sky in winter?
Sirius is the brightest star in the southern sky during winter. It is part of the constellation Canis Major and is known for its luminosity and distinct bluish-white color. Sirius is often referred to as the "Dog Star."
What is sirius A named after?
Sirius was named after the word 'blazing' which fits because it is the brightest star in the night sky AND twice the size and brightness
What is the star of the month February?
The star of the month of February is typically Sirius, the brightest star in the night sky. Sirius is part of the constellation Canis Major and is known for its incredible brightness and distinct blue-white color.
Is the sun sirius a supergiant?
No. Sirius is actually two stars. The main body, Sirius A, is a fairly large star, larger than the sun, but it is nowhere near the size of a supergiant. Sirius B is a white dwarf, a small, dense remnant of a star that is, int his case, slightly smaller than Earth.
What can you infer about Sirius's size and temperature that would explain why it look's brighter than Barnard's Star?
Sirius is bigger and hotter than Barnard's Star, which makes it appear brighter. The larger size of Sirius means it has a greater surface area emitting light. Additionally, its higher temperature causes it to emit more light energy compared to Barnard's Star.
