Universe Guide

MY Cephei (Red Supergiant Star) Facts

MY Cephei Facts

Location of MY Cephei

The location of the supergiant star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For MY Cephei, the location is 22 54 31.6975860144 and +60 49 38.970114015 .

Proper Motion of MY Cephei

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving -1.72 milliarcseconds/year towards the north and -2.64 milliarcseconds/year east if we saw them in the horizon. . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

Physical Properties (Colour) of MY Cephei

MY Cephei Colour and Temperature

MY Cephei has a spectral type of M7.5I C. This means the star is a red supergiant star.

Distance to MY Cephei

The Parallax of the star is given as 0.93 which gives a calculated distance to MY Cephei of 3513.18 light years from the Earth or 1077.12 parsecs. It is about 2,355,996,928,670 miles from Earth.

The star is roughly 222,170,400.00 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.

Travel Time to MY Cephei

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Airbus A3807363,201,082,783.52
Speed of Sound (Mach 1)767.2693,070,627,027.38
Concorde (Mach 2)1,534.541,535,311,512.68
New Horizons Probe33,00071,393,846.32
Speed of Light670,616,629.003,513.18

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Additional MY Cephei Facts and Figures

Visual Facts

Primary / Proper / Traditional NameMY Cephei
Spectral TypeM7.5I C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type very luminous Supergiant Star
GalaxyMilky Way
Right Ascension (R.A.)22 54 31.6975860144
Declination (Dec.)+60 49 38.970114015
Distance from Earth0.93 Parallax (milliarcseconds)
 3513.18 Light Years
 1077.12 Parsecs
 222,170,400.00 Astronomical Units
Proper Motion Dec.-1.72 milliarcseconds/year
Proper Motion RA.-2.64 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Sources and Links


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