Αποτελέσματα Αναζήτησης
Drawing shows different sizes of a tumor in centimeters (cm) compared to the size of a pea (1 cm), a peanut (2 cm), a grape (3 cm), a walnut (4 cm), a lime (5 cm), an egg (6 cm), a peach (7 cm), and a grapefruit (10 cm). Also shown is a 10-cm ruler and a 4-inch ruler.
White dwarf stars are a bit bigger - often similar in size to our planet Earth. The largest supergiant stars can be more than 1500 times larger than our Sun. This makes them over 2,000 million km across. However, supergiants actually don't contain thousands times more mass than the Sun.
A few notable large stars with masses less than 60 M ☉ are shown in the table below for the purpose of comparison, ending with the Sun, which is very close, but would otherwise be too small to be included in the list. At present, all the listed stars are naked-eye visible and relatively nearby.
A quasi-star (also called black hole star) is a hypothetical type of extremely massive and luminous star that may have existed early in the history of the Universe. They are thought to live around 7-10 million years.
Neutron stars have a radius on the order of 10 kilometers (6 mi) and a mass of about 1.4 M☉. [3] They result from the supernova explosion of a massive star, combined with gravitational collapse, that compresses the core past white dwarf star density to that of atomic nuclei .
15 Ιαν 2023 · To measure the mass of a star, use 2 stars. There are lots of binary stars – two stars revolving around a common center of mass – populating the starry sky. In fact, a large majority of all ...
11 Απρ 2022 · Understand how we can apply Newton’s version of Kepler’s third law to derive the sum of star masses in a binary star system; Apply the relationship between stellar mass and stellar luminosity to determine the physical characteristics of a star; The mass of a star—how much material it contains—is one of its most important characteristics.
