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HomeFactsConstellationsCanes Venatici

17 Canum Venaticorum, HD114447, HIP64246, HR4971

17 Canum Venaticorum is a blue star that can be located in the constellation of CanesVenatici. The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.

The Id of the star in the Yale Bright Star Catalogue is HR4971. HIP64246 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD114447.

Location of 17 Canum Venaticorum

The location of the star in the galaxy 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 star is compared to the celestial equator and is expressed in degrees. For 17 Canum Venaticorum, the location is 13h 10m 03.27 and +38d 29` 55.9 .

Proper Motion of 17 Canum Venaticorum

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 44.04 ± 0.25 miliarcseconds/year towards the north and -69.79 ± 0.39 miliarcseconds/year east if we saw them in the horizon. The Radial Velocity, that is the speed at which the star is moving away/towards us is -16.40000 km/s with an error of about 3.00 km/s .

Physical Properties (Colour, Temperature, Radius) of 17 Canum Venaticorum

17 Canum Venaticorum has a spectral type of A9III-IV. This means the star is a blue star. The star is 7404.00000000 Parsecs from the Galactic Centre or terms of Light Years is 24149.1339897600000000s. The star has a B-V Colour Index of 0.29 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 7,270 Kelvin.

17 Canum Venaticorum Radius has been calculated as being 2.40 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,668,398.78.km. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 2.45. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.

17 Canum Venaticorum Apparent and Absolute Magnitudes

17 Canum Venaticorum has an apparent magnitude of 5.91 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of 1.95 If you used the 2007 Parallax value, you would get an absolute magnitude of 1.90. Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is. Our own Sun is the brightest star and therefore has the lowest of all magnitudes, -26.74. A faint star will have a high number.

Distance to 17 Canum Venaticorum

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 16.12 which gave the calculated distance to 17 Canum Venaticorum as 202.33 light years away from Earth or 62.03 parsecs. It would take a spaceship travelling at the speed of light, 202.33 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

In 2007, Hipparcos data was revised with a new parallax of 15.80 which put 17 Canum Venaticorum at a distance of 206.43 light years or 63.29 parsecs. It should not be taken as though the star is moving closer or further away from us. It is purely that the distance was recalculated.

The star's Galacto-Centric Distance is 7,404.00 Parsecs or 24,149.13 Light Years. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*.

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Metallicity and/or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

17 Canum Venaticorum Facts

Alternative Names

Traditional/Proper Name17 Canum Venaticorum
Flamsteed Name17 Canum Venaticorum
Flamsteed Short Name17 CVn
Hipparcos Library I.D.64246
Yale Bright Star Catalogue (HR) Id4971
Bonner DurchmusterungBD+39 2614
Henry Draper Designation114447

Visual Facts

Star Type star
ConstellationCanes Venatici
Absolute Magnitude1.95 / 1.90
Visual / Apparent Magnitude5.91
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)13h 10m 03.27
Declination (Dec.)+38d 29` 55.9
Galactic Latitude77.98 degrees
Galactic Longitude105.18 degrees
1997 Distance from Earth16.12 Parallax (milliarcseconds)
 202.33 Light Years
 62.03 Parsecs
2007 Revised Distance from Earth15.80 Parallax (milliarcseconds)
 206.43 Light Years
 63.29 Parsecs
Galacto-Centric Distance24,149.13 Light Years / 7,404.00 Parsecs
Proper Motion Dec.44.04 ± 0.25 milliarcseconds/year
Proper Motion RA.-69.79 ± 0.39 milliarcseconds/year
B-V Index0.29
Radial Velocity-16.40 ± 3.00 km/s
Spectral TypeA9III-IV
Colour(A) blue

Estimated Facts

Calculated Effective Temperature7,270 Kelvin

Sources and Links

SIMBAD SourceLink

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