0
It traces to the Greek astronomer Hipparchus (or the Alexandrian astronomer Ptolemy-references vary). He classed stellar objects on how bright they appeared - the brightest were "magnitude 1", the next brightest were "magnitude 2", on down to "magnitude 6", the faintest he could see. Thus the scale is roughly 2000 years old.
Blaze Rogahn
Wiki User
∙ 15y agothey classify them by them color,there temp, and by there light
Wiki User
∙ 8y agobrightness and temperature, you could use a HR diagram (Hertzsprung- Russell Diagram). <3 bye
Wiki User
∙ 9y agoA star is a huge sphere of ionized gas that constitutes most of the luminous matter in the universe.
Wiki User
∙ 13y agoThey're categorized by mass mostly.
Wiki User
∙ 9y agoBy mass, size and magnitude
PARIS JONES
errtrrttrg gg
Add your answer:
Earn +20 pts
How do you classify stars by age?
you dont. sciensists never use age to classify a star
What are the two main properties that astonomers use to classify stars?
The surface temperature and the absolute magnitude, which is the brightness of the star when viewed from a standard distance of 10 parsecs.
Classify the capitalized words a black hole is the remains of a supermassive star after a supernova?
The only word you should capitalize is "A", at the beginning of the sentence. There are no proper nouns that would have to be capitalized.
What is a hertzsprung-Russel Diagram?
see link below
What two variables are used to classify stars?
The first variable that is used to classify stars is its ionization state which can measure the photosphere's temperature and density. This information is gathered by splitting the light from a star with a prism and observing the resulting spectrum that includes absorption lines. Luminosity is another variable used; it is based on the width of absorption lines.
How do you classify stars by age?
you dont. sciensists never use age to classify a star
What are characteristics used to classify a star?
you classify stars by color, temperature, size, composition, and brightness.
Professions where you need to classify living things?
porn star
How would you classify a movie star as a factor of production?
Labor.
What is the diameter of the dying star?
Depends on what star and at what point you classify it as dieing. As soon as a star is born it is "dieing" as it is using up the fuel that makes it.
How do scientists classify a star by size?
The scientists classify them by them color,there tempher,and by there light.
Are stars classified by how hot they are?
Of course, you can classify them in different ways. One important way to classify them is their mass; it is basically their mass that defines the star's evolution. But you can also classify them according to their temperature, radius, age, metallicity, etc.
What property did you use to classify a celestial body as a star?
Stars shine...they produce light. ght
What is the final explosion of a dying supergiant star called?
A supernova, or in the case of a smaller star, a nova.
What is the difference in 4 star and 3 star petrol?
The star rating is no longer used to classify petrol. The star rating was an indication of the percentage of lead present in the fuel. Commercial fuels no longer contain lead.
How would you classify the based on each of these characteristics?
The sun is considered a main sequence star on the Hertzsprung-Russell diagram.
How do you use classify in a sentence?
you can not classify this. How can you classify them?
