What does OBAFGKM stand for stars?
What does OBAFGKM stand for stars?
Acronym. Definition. OBAFGKM. Oh, Be A Fine Girl/Guy, Kiss Me (mnemonic for the order of star temperatures)
What type of star is OBAFGKM?
Types of Stars
| Spectral Type | Color | Examples |
|---|---|---|
| O | Blue-violet | Stars of Orion’s Belt |
| B | Blue-white | Rigel |
| A | White | Sirius |
| F | Yellow-white | Polaris |
WHAT IS A Spectral of a star?
Spectra of Stars. A spectrum (the plural is spectra) is a graph of the amount of light something gives off (how bright the object is) at different wavelengths. In the spectra of stars, we frequently do not know the distances to the stars, so a star’s spectrum shows how bright it appears from Earth.
What are the 7 classifications of stars?
Scientists classify stars by temperature and the elements they absorb, which are called their spectra. They have divided stars into seven main types. There are seven main types of stars: O, B, A, F, G, K and M. The O stars are the bright, hot, blue stars and the M stars are the dimmer, cooler, red stars.
How do you remember OBAFGKM?
The spectral sequence O B A F G K M. The classic mnemonic is Oh Be A Fine Girl, Kiss Me. You may replace girl with guy, depending on your sexual orientation, without changing the sense of the mnemonic.
How do you remember the Scoopable stars?
The common mnemonic to remember the scoopable star classes is “KGB FOAM”, but really you just have to remember “M” because it’s M and everything before it in the list.
What is the rarest star?
An O-type star is a hot, blue-white star of spectral type O in the Yerkes classification system employed by astronomers. They have temperatures in excess of 30,000 kelvin (K).
What star class is the sun?
G2V
Sun/Spectral type
How do you remember Obafgkm?
What type of star is the Betelgeuse?
M2Iab
Betelgeuse/Spectral type
What are the 5 main groups of stars?
Star Classification. The Sun is a as a G2V type star, a yellow dwarf and a main sequence star.
https://www.youtube.com/watch?v=AJE_6E9LWNE
