Seeing as Oli and I need to categorise objects in space we have assigned to certain areas of research. I've got stars & oli will be researching planets within our solar system.
In astronomy, stellar classification categorises stars in terms of their spectral characteristics. This allows for a measurement of it's photosphere's temperature (atomic excitation most prominant in light - ionization in it's photosphere)
Stars are mainly classified using the letters O, B, A, F, G, K, & M. This is often remembered using the mnemonic "Oh Be A Fine Girl Kiss Me" or "Oh Boy An F Grade Kills Me"
Traditionally these are what the stars are called:
O - blue
B - blue / white
A - white
F - white / yellow
G - yellow
K - orange
M - red
In addition, the Morgan-Keenan system adds another measurement that represents the range between two star categories using the numbers 0-9. Each unit represents a tenth eg A2 would be 2 tenths between A0 & F0. Lower numbered stars in the catagory are brighter.
Furthermore, using the Morgan-Keenan system, numerical values which portray the absorption lines of a star. This is therefore a general measure of the size of the star, and the total luminosity output.
Star classes:
i - supergiants
ii - bright giants
iii - giants
iv - subgiants
v - dwarfs / main sequence
Our sun, for example, is classified as G2V which would mean it's a yellow 2 tenths towards orange main sequence star.
Using this stellar classification as catagories will allow us to explore and apply unique print processes and finishes onto the prints.....
In astronomy, stellar classification categorises stars in terms of their spectral characteristics. This allows for a measurement of it's photosphere's temperature (atomic excitation most prominant in light - ionization in it's photosphere)
Stars are mainly classified using the letters O, B, A, F, G, K, & M. This is often remembered using the mnemonic "Oh Be A Fine Girl Kiss Me" or "Oh Boy An F Grade Kills Me"
Traditionally these are what the stars are called:
O - blue
B - blue / white
A - white
F - white / yellow
G - yellow
K - orange
M - red
In addition, the Morgan-Keenan system adds another measurement that represents the range between two star categories using the numbers 0-9. Each unit represents a tenth eg A2 would be 2 tenths between A0 & F0. Lower numbered stars in the catagory are brighter.
Furthermore, using the Morgan-Keenan system, numerical values which portray the absorption lines of a star. This is therefore a general measure of the size of the star, and the total luminosity output.
Star classes:
i - supergiants
ii - bright giants
iii - giants
iv - subgiants
v - dwarfs / main sequence
Our sun, for example, is classified as G2V which would mean it's a yellow 2 tenths towards orange main sequence star.
Using this stellar classification as catagories will allow us to explore and apply unique print processes and finishes onto the prints.....
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