Cassiopeia
The constellation that looks like a "M" is Cassiopeia. Cassiopeia is named after the queen in Greek mythology and can be seen in the northern sky. It is made up of five bright stars that form a distinctive "W" or "M" shape depending on its position in the sky.
The stars that make up the constellation Cassiopeia are mainly grouped in the shape of a "W" or "M" pattern, depending on its position in the sky. Cassiopeia is a prominent constellation in the northern hemisphere and is known for its distinct shape and location near the North Star.
The northern circumpolar constellation that resembles the letter 'M' is Cassiopeia. It is easily recognizable due to its distinctive W or M shape formed by five bright stars. Cassiopeia is located in the northern sky and is visible throughout the year in many locations. This constellation is named after a queen in Greek mythology, known for her beauty and vanity.
Main Sequence
The temperature of the brightest stars typically indicates their spectral classification and stage in the stellar lifecycle. Hotter stars, classified as O or B types, can have surface temperatures exceeding 30,000 Kelvin, emitting blue light, while cooler stars, such as K or M types, have temperatures under 5,000 Kelvin and emit red light. The brightness of a star is influenced not only by its temperature but also by its size and distance from Earth. Consequently, the brightest stars are often high-temperature giants or supergiants, reflecting their massive size and energy output.
The constellation you are referring to is Orion. The three stars that form an "M" shape (or "W" shape when flipped) in Orion are Mintaka, Alnilam, and Alnitak, collectively known as Orion's Belt.
The constellation that looks like a "M" is Cassiopeia. Cassiopeia is named after the queen in Greek mythology and can be seen in the northern sky. It is made up of five bright stars that form a distinctive "W" or "M" shape depending on its position in the sky.
The stars that make up the constellation Cassiopeia are mainly grouped in the shape of a "W" or "M" pattern, depending on its position in the sky. Cassiopeia is a prominent constellation in the northern hemisphere and is known for its distinct shape and location near the North Star.
Those are codes for spectral types - roughly, the color of the stars.
See link as there are too many to list individually.The fourteen main ones are:-γ Dra - Eltanin, Etamin, Etanin, Ettanin, the Zenith Star, Rastaban, Rastabenη Dra - Aldhibain, Boobooβ Dra - Rastaban, Rastaben, Alwaid, Asuiaδ Dra - Altais, Nodus Secundus, Nodus II, Aldibζ Dra - Aldhibah, Eldsib, Kaou Pih, Nod, Nodus Iι Dra - Edasich, Eldsich, Ed Asich, Al Dhiba, Al Dhihiχ Dra - Batentaban Borealis, Batn al Thuban Thuban - Adib, Dragon's Tailξ Dra - Grumium, Genam, Nodus Primus, Nodus Iλ Dra - Giausar, Giauzar, Gianfar, Giansar, Gaiusar, Juzaε Dra - Tyl, Kin Yuκ Dra - Ketuθ Draφ Dra - Batentaban Australis, Batn al ThubanSee link for pictorial representation
Type-O are the hottest but there are very few. Then type-B, there are more of them but still not a lot. Then you have type-A, which are very common, then F, then G like the Sun, then K and then the coolest common ones, type M which are the red stars like Betelgeuse.
The northern circumpolar constellation that resembles the letter 'M' is Cassiopeia. It is easily recognizable due to its distinctive W or M shape formed by five bright stars. Cassiopeia is located in the northern sky and is visible throughout the year in many locations. This constellation is named after a queen in Greek mythology, known for her beauty and vanity.
A star's brightness is indicated by a numbercalled its magnitude. It's a reversed scale, so brighter stars have smaller magnitude numbers. Our Sun's magnitude is approximately +5, not especially bright. Letters are used to indicate the surface temperature (and therefore the color) of a star. O, B, and A are very hot blue stars. F are white, G are yellow, K are orange, and M are the red coolest stars visible. Our sun is a G star, yellowish white.
Main Sequence
The temperature of the brightest stars typically indicates their spectral classification and stage in the stellar lifecycle. Hotter stars, classified as O or B types, can have surface temperatures exceeding 30,000 Kelvin, emitting blue light, while cooler stars, such as K or M types, have temperatures under 5,000 Kelvin and emit red light. The brightness of a star is influenced not only by its temperature but also by its size and distance from Earth. Consequently, the brightest stars are often high-temperature giants or supergiants, reflecting their massive size and energy output.
Under ideal conditions, the limit is about 6m. That's how the "m" was originally defined - 1m for the brightest stars, 6m for the faintest that could be seen with the naked eye. (However, with the modern definition, the brightest stars have an apparent magnitude of less than 1m - even negative magnitudes.)
The constellation you are referring to is likely Cassiopeia. Cassiopeia is a distinctive "M" or "W" shaped constellation in the northern hemisphere. It is named after the mythological queen Cassiopeia.