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CM Draconis

CM Draconis Facts

  • CM Draconis is a rotating main sequence star that can be located in the constellation of Draco. The description is based on the spectral class.
  • CM Draconis is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (M4.5V C) of the star, the star's colour is red .
  • The star is calculated at being about 48.44 light years away from us. Distance

CM Draconis's Alternative Names

CM Draconis has alternative name(s) :- CM Dra.

More details on objects' alternative names can be found at Star Names .

Location of CM Draconis

The location of the main sequence 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 CM Draconis, the location is 16 34 20.3299130309 and +57 09 44.365524588 .

Radial Velocity and Proper Motion of CM Draconis

Proper Motion

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 1,181.21 milliarcseconds/year towards the north and -1,113.61 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is -118.24000 km/s . 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 of CM Draconis

CM Draconis Temperature and Colour

Based on the star's spectral type of M4.5V C , CM Draconis's colour and type is red main sequence star. Based on the star's spectral, the stars temperature is between 2,400.00 and 3,700.00 degrees kelvin.

Distance to CM Draconis

The Parallax of the star is given as 67.34000 which gives a calculated distance to CM Draconis of 48.44 light years from the Earth or 14.85 parsecs. It is about 284,760,613,077,014 miles from Earth.

The star is roughly 3,063,011.03 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 CM Draconis

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)
Walking48,121,167,377.19
Car120270,705,579.24
Airbus A38073644,136,779.22
Speed of Sound (Mach 1)767.26942,338,045.08
Concorde (Mach 2)1,534.5421,168,994.95
New Horizons Probe33,000984,383.92
Speed of Light670,616,629.0048.44

Variable Type of CM Draconis

The star is a rotating BY Draconis variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted.

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Additional CM Draconis Facts and Figures

Visual Facts


Primary / Proper / Traditional NameCM Draconis
Alternative NamesCM Dra
Spectral TypeM4.5V C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourRed
GalaxyMilky Way
ConstellationDraco
Right Ascension (R.A.)16 34 20.3299130309
Declination (Dec.)+57 09 44.365524588
Distance from Earth67.34000 Parallax (milliarcseconds)
 48.44 Light Years
 14.85 Parsecs
 3,063,011.03 Astronomical Units
Proper Motion Dec.1181.21100 milliarcseconds/year
Proper Motion RA.-1113.61200 milliarcseconds/year
Radial Velocity-118.24000 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassRotating
Variable Star TypeBY Draconis

Estimated Calculated Facts


Calculated Temperature Range2,400.00 - 3,700.00

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=cm%20draconis

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