An example of when it's a Blue Straggler, the star has stolen matter from a nearby star and grown to appear youthful when it's not.
Those that are blue stars are normally identified as being young stars whereas redder stars are usually older stars, ones that are at the end of their life. There is a relationship between colour and temperature, stars that are closer to red in the rainbow spectrum are cooler whereas those closer to blue are hotter. To put this in context, the temperature of our Sun is about 5,778 Kelvin as said by Google. Small stars are more energy efficient than larger stars and live longer.īased on the spectral type as we don't have the exact temperature', we can deduce that the surface temperature of the star is in the order of 10,000 and 25,000K based on the notes from Harvard University. For example, a red star can be large or small. There is no relationship between colour and size. Colour, Age)īased on the star's spectral type of B1V., Sigma Cassiopeiae colour and type is blue main sequence star. Sigma Cassiopeiae Physical Properties (e.g. As the Earth is titled, we therefore have Celestial and Ecliptic hemispheres and they can be different for a star. The Ecliptic is the path that the Earth takes as it orbits the Sun. Sigma Cassiopeiae is north of the Ecliptic. The celestial hemisphere is equivalent to the hemispheres on Earth. īased on the location of Cassiopeia, Sigma Cassiopeiae can be located in the northern hemsiphere of the celestial sky. For Sigma Cassiopeiae, the location is 23h 59m 00.53 and +55° 45` 17.8. If the value is positive, it is north of the celestial equator. The Declination (Latitude) is how far north or south the object is compared to the celestial equator and is expressed in degrees. is positive, then it's eastwards and vice versa. The Right Ascension (Longitude) is expressed in time (hh:mm:ss) and is how far the star is along Earth's celestial equator. These are equivalent to the Longitude and Latitude on Earth. The location of the Sigma Cassiopeiae in the night sky is determined by the right ascension (R.A.) and declination (Dec.).
B stars are short lived stars as they are not fuel efficient. Sigma Cassiopeiae lifespan can be measured in millions of years based on it be a typical blue star (B Type).Changing the distance from light years to years will tell you roughly how long ago we are looking at the star. Using the most recent figures from the 2007 Hipparcos data, Sigma Cassiopeiae distance from Earth is 4530.05 light years. When you look at Sigma Cassiopeiae, you are looking back in time and seeing how it looked years ago.No one has visited Sigma Cassiopeiae, and we have no probes on a rendezvous with the star.If an exoplanet has been spotted or confirmed, it will probably be recorded in the Exoplanet EU database. There are no exoplanets recorded on the site for the star, and that is most likely the case.Sigma Cassiopeiae will have its own solar system. In case you're wondering, Sigma Cassiopeiae is not in our Solar System, and there is only one star in the Solar System, the Sun. Sigma Cassiopeiae is located in the Milky Way galaxy, and this is the galaxy that you reside in.It is a naked-eye star, so you don't need a telescope or binoculars. Based on the star's spectral type (B1V.), Sigma Cassiopeiae's colour is blue. It is not part of the Cassiopeia constellation outline but is within the borders of the constellation. Sigma Cassiopeiae (Sigma Cassiopeiae) is a main sequence star located in the constellation of Cassiopeia, Queen of Ethiopia.
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