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A variable star (or pulsating star) is a star that an earth observer sees as changing in luminosity over time. This variation in brightness may be something the star is "doing itself" because of changes in its nucleosynthetic processes, or it may be due to the passage of dust clouds or the like between the star and the observer. Wikipedia has more information, and you'll find a link to their post below.
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What is the period of the variable star betelgeuse?
Betelgeuse is a semi-regular variable star, meaning it does not have a consistent period like a regular variable star. Its brightness fluctuates irregularly over periods of months to years.
A star whose brightness changes?
A star who's brightness changes is called a variable star.Examples are:AlgolPolarisBetelgeuse.See related link for more information.
What do you call a star that appears to pulsate?
A star that pulsates is known as a variable star.
What type of star is homam?
Homam (Sometimes Homan) or Zeta Pegasi is a star in the constellation Pegasus.It has a spectral type of B0 so it is blue-white giant.
Why did they name the biggest star vy?
The name "Vy Canis Majoris" comes from the star's location in the constellation Canis Major and its classification as a "variable" star. "Vy" is simply a designation for variable stars while "Canis Majoris" indicates its location in the constellation.
How do you describe a variable star?
A variable star is a star whose brightness as seen from Earth that fluctuates.
How do you describe variable stars?
A variable star is a star whose brightness as seen from Earth that fluctuates.
When was American Association of Variable Star Observers created?
American Association of Variable Star Observers was created in 1911.
What is the period of the variable star betelgeuse?
Betelgeuse is a semi-regular variable star, meaning it does not have a consistent period like a regular variable star. Its brightness fluctuates irregularly over periods of months to years.
Is stars shining an example of s continuous variable?
No, it is a continuous process but not a continuous variable. The magnitude of star-shine, across all stars is a continuous variable. The magnitude of a star's shine over time is a continuous variable.
A star whose brightness changes?
A star who's brightness changes is called a variable star.Examples are:AlgolPolarisBetelgeuse.See related link for more information.
Is Antares a thermal star?
Antares is a slow variable star. All stars are "thermal"
What type of star is GD358?
GD 358 is a variable white dwarf star of the DBV type
What kind of star dims and brightens every three days?
A short-period variable star.
What do you call a star that appears to pulsate?
A star that pulsates is known as a variable star.
What is a heavenly body with periodically changing luminosity?
Variable star
What variable determines wether a protostar becomes a star?
mass
