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Cepheid variables are high-mass, pulsating variables exhibiting a regular relationship between the period of pulsation and luminosity.
When a star's evolutionary track carries it through a region called the instability strip in the HR diagram, the star becomes unstable and begins to pulsate.
These stars are important to astronomers who study galaxies because Cepheids can be seen at extragalactic distances, and their period or pulsation tells us their luminosities, which in turn tells us their distances.
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What else can I help you with?
Where would Demeter hangout at?
the strip club
What is a piece of paper with only one side?
I think you are describing what is called a "mobius strip". It has two sides, but if you try to draw a line on it, you eventually find that the line is on both sides.It can be made as follows: Cut a 2" wide strip of paper at least 18-24" long. Make a circle, or loop with it. Turn one end over once, and then attach the ends. That's a mobius strip.
The strip of the sky through which the sun the moon and the brightest planets appear to move in the course of a year is called what?
The strip of the sky through which the sun, moon, and brightest planets appear to move in the course of a year is known as the ecliptic.
What are some advantages of strip-lights?
Strip lights offer several advantages, including flexibility in design, as they can be cut to fit various spaces and shapes. They provide even illumination, making them ideal for both accent and ambient lighting. Additionally, strip lights are energy-efficient, often using LED technology, which results in lower electricity costs and longer lifespan. Their versatility allows for easy installation in homes, offices, and outdoor areas.
What is the imaginary strip running down the middle of the Atlantic ocean from the north pole to the south pole?
The imaginary strip running down the middle of the Atlantic Ocean from the north pole to the south pole is the Prime Meridian. It is the line of 0 degrees longitude and serves as the starting point for measuring longitude around the globe.
What is the perimeter of the Gaza Strip?
See Related Links for map of Gaza Strip.
How bimetallic strip works?
Scroll down to related links and look at "Bi-metallic strip - Wikipedia".
Where can you find a comic strip about a detective?
You can find a comic strip concerning a detective in the comic strip 'Dick Tracy' by Chester Gould ~ see related link below .
Give the meaning of strip?
See the 'Related Link' below.
What is your favourite cartoon strip?
Non - Sequitur ; see related link .
What are the disadvantages of strip foundatin?
Some disadvantages of strip foundations include limited load-bearing capacity, susceptibility to differential settlement (which can lead to structural issues), and the potential for erosion or instability of the ground beneath the foundation. Additionally, strip foundations may not be suitable for all soil types and may require deeper excavation in certain cases.
How do you draw a strip diagram?
To draw a strip diagram, start by identifying the quantities involved in the problem and representing them as rectangular strips. Each strip should be proportional in length to the quantity it represents. Label each strip with the corresponding values or variables, and use different colors or patterns to distinguish between different quantities if necessary. Finally, ensure that the strips are clearly aligned to visually demonstrate relationships or comparisons between the quantities.
How are factor sof 12 related to a fraction strip folded into 12ths?
They are all factors of 12
Where is the last comic strip piece on Big nate island?
The last frame, lower right of the comic strip, is at the top of the scaffolding just to the right of the school. (see related question)
Where can you find pictures of Margaret from the Dennis the Menace comic strip?
You can find pictures of Margaret from the Dennis the Menace comic strip in various comic strip collections, online archives for the comic strip, or in Dennis the Menace comic strip books. Additionally, some newspapers or comic strip websites may also have archives where you can view past strips featuring Margaret.
What treaty was to humiliate and strip Germany of it's colonies?
The Treaty of Versailles. ~ See related link below .
Is the phantom superhero still in comic?
Lee Falk's "The Phantom" still appears as an ongoing comic strip but not all newspapers carry the strip (unfortunately) . You can read the comic at the related link below .
