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CQ Lyncis

CQ Lyncis Facts

CQ Lyncis's Alternative Names

HIP40230 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD67911.

CQ Lyncis has alternative name(s) :- CQ Lyn, CQ Lyn.



Location of CQ Lyncis


Radial Velocity and Proper Motion of CQ Lyncis

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 -28.86 ± 0.49 miliarcseconds/year towards the north and -0.08 ± 0.75 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 the Sun is -1.50 km/s with an error of about 4.90 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.

CQ Lyncis Luminosity

Luminosity is the amount of energy that a star pumps out and its relative to the amount that our star, the Sun gives out. The figure of 12.36 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

Physical Properties (Colour, Temperature, Age) of CQ Lyncis

CQ Lyncis has a spectral type of F0. This means the star is a blue to white variable star. The star is 7,524.00 Parsecs from the Galactic Centre or in terms of Light Years is 24,540.53 s. The star has a B-V Colour Index of 0.4 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 6,398 Kelvin.

CQ Lyncis Radius has been calculated as being 3.07 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 2,134,420.67.km. If you need the diameter of the star, you just need to multiple the radius by 2. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 2.97. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures. The star's Iron Abundance is 0.44 with an error value of 9.99 Fe/H with the Sun has a value of 1 to put it into context.


CQ Lyncis Apparent and Absolute Magnitudes


Distance to CQ Lyncis

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 6.14 which gave the calculated distance to CQ Lyncis as 531.21 light years away from Earth or 162.87 parsecs. It would take a spaceship travelling at the speed of light, 531.21 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 6.35 which put CQ Lyncis at a distance of 513.64 light years or 157.48 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.

Using the 2007 distance, the star is roughly 32,482,355.35 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.

The star's Galacto-Centric Distance is 7,524.00 Parsecs or 24,540.53 Light Years. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*.

Variable Type of CQ Lyncis

The star is a pulsating Delta Scuti 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. CQ Lyncis brightness ranges from a magnitude of 8.135 to a magnitude of 8.039 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.1 days (variability).

Source of Information


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Additional CQ Lyncis Facts and Figures

Visual Facts

Primary / Proper / Traditional NameCQ Lyncis
Alternative NamesCQ Lyn, HD 67911, HIP 40230, BD+56 1275, CQ Lyn
Spectral TypeF0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourYellow - White
GalaxyMilky Way
Age1.00 Billion Years Old
Age Range0.90 - 1.10 Billion Years Old
Absolute Magnitude 1.97 / 2.04
Visual / Apparent Magnitude8.03
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)08h 12m 59.05
Declination (Dec.)+55° 37` 31.2
Galactic Latitude33.46 degrees
Galactic Longitude162.31 degrees
1997 Distance from Earth6.14 Parallax (milliarcseconds)
 531.21 Light Years
 162.87 Parsecs
2007 Distance from Earth6.35 Parallax (milliarcseconds)
 513.64 Light Years
 157.48 Parsecs
 32,482,355.35 Astronomical Units
Galacto-Centric Distance24,540.53 Light Years / 7,524.00 Parsecs
Proper Motion Dec.-28.86 ± 0.49 milliarcseconds/year
Proper Motion RA.-0.08 ± 0.75 milliarcseconds/year
B-V Index0.40
Radial Velocity-1.50 ± 4.90 km/s
Iron Abundance0.44 ± 9.99 Fe/H
Semi-Major Axis7247.00
Stellar Luminosity (Lsun)12.36

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassPulsating
Variable Star TypeDelta Scuti
Mean Variability Period in Days0.113
Variable Magnitude Range (Brighter - Dimmer)8.039 - 8.135

Estimated Calculated Facts

Radius (x the Sun)2.97
Effective Temperature6,398 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions


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