0
What is the approximate luminosity of a main-sequence star whose mass is one-tenth that of the Sun?
There's no single answer, since luminosity depends not only of mass but stage and temperature. However, most 0.1 Solar mass stars are going to be red dwarfs, so consider Wolf 359, a nearby star, as an example. It's about 0.09 Solar mass and its luminosity varies from about 0.0009 to 0.0011.
What else can I help you with?
Which class of violently exploding stars whose luminosity after eruption suddenly increases millions of times?
One class of violently exploding stars that experience a sudden increase in luminosity after eruption are supernovae. Supernovae occur when a massive star reaches the end of its life cycle and undergoes a catastrophic explosion, briefly outshining an entire galaxy. These events are crucial for the dispersal of heavy elements and the formation of new stars.
What is the mass of a ball whose density is 0.250 gcm3 and whose volume is 200 cm3?
0.0125
Mention a plant whose seeds and leaves are useful to us?
Musterd is a plant whose seeds and leaves are useful to us
What element is a soft valuable metal whose purity is measured in carats?
Gold is a soft valuable metal whose purity is measured in carats.
Whose the author of burning bright?
John Steinbeck
A star whose luminosity varies periodically is a?
Periodic variable.
What is the approximate diameter of a circle whose circumference is 21cm?
The approximate diameter of a circle whose circumference is 21cm is: 6.68cm
What is the approximate area of a semicircle whose radius is 2Cm?
2pi sq cm
What is the approximate total surface area of a sphere whose diameter is 4in?
Approximately 50.265 square inches.
What is the luminosity of the star regulus?
In astronomy, Luminosity is the amount of energy a body radiates per unit time. The luminosity of stars is measured in two forms: apparent (counting visible light only) and bolometric (total radiant energy); a bolometer is an instrument that measures radiant energy over a wide band by absorption and measurement of heating. When not qualified, luminosity means bolometric luminosity, which is measured in the SI units watts, or in terms of solar luminosities, ; that is, how many times as much energy the object radiates than the Sun, whose luminosity is 3.846×1026 W. Luminosity is an intrinsic constant independent of distance, and is measured as absolute magnitude corresponding to apparent luminosity, or bolometric magnitude corresponding to bolometric luminosity. In contrast, apparent brightness is related to distance by an inverse square law. Visible brightness is usually measured by apparent magnitude, which is on a logarithmic scale. In measuring star brightnesses, visible luminosity (not total luminosity at all wave lengths), apparent magnitude (visible brightness), and distance are interrelated parameters. If you know two, you can determine the third. Since the sun's luminosity is the standard, comparing these parameters with the sun's apparent magnitude and distance is the easiest way to remember how to convert between them.
What is the approximate total surface area of a sphere whose diameter is 4 inches?
Approximately 50.265 square inches.
How luminous is alnitak?
Alnitak is a very interesting star, because it is not one, but three stars. The main star, Alnitak Aa, with a luminosity 100000 times that of the Sun is orbited at 11 Astronomical Units (roughly the distance at which Saturn orbits the Sun) by Alnitak Ab, with a luminosity of 20000 times that of the Sun. This binary star system is orbited at 680 AUs (roughly the distance of the inner Ort Cloud from the Sun) by Alnitak B, whose luminosity is roughly 10000 times that of the Sun.
What is the circumference of a circle whose diameter is 3 mm?
C = pi * diameter 3*3.14=9.42 3.41 is approximate for pi.
What is the approximate area of a circle whose radius is 21 cm?
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
Which class of violently exploding stars whose luminosity after eruption suddenly increases millions of times?
One class of violently exploding stars that experience a sudden increase in luminosity after eruption are supernovae. Supernovae occur when a massive star reaches the end of its life cycle and undergoes a catastrophic explosion, briefly outshining an entire galaxy. These events are crucial for the dispersal of heavy elements and the formation of new stars.
Define standard candle as it is used in astronomy?
A "standard candle" in astronomy is an object whose luminosity (its true brightness, not just how bright it seems to us) can be estimated, based on characteristics of that type of object. Then its distance can be estimated from its "apparent magnitude". The stars called "Cepheid variables" are a good example. The rate at which their brightness varies is closely linked to their luminosity.
How do you find pie of a circle?
Pi is a mathematical constant and does not depend on a particular circle. It is an irrational (transcendental) number whose approximate value is 3.14159 although 3.14 is also used.
