Universe Guide

CC Lyrae

CC Lyrae Facts

CC Lyrae's Alternative Names

HIP91015 is the reference name for the star in the Hipparcos Star Catalogue.

CC Lyrae has alternative name(s) :- CC Lyr, CC Lyr.

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

Location of CC Lyrae

The location of the variable 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 CC Lyrae, the location is 18h 33m 57.41 and +31° 38` 24.2 .

Physical Properties (Colour) of CC Lyrae

CC Lyrae Colour and Temperature

CC Lyrae has a spectral type of FOp. This means the star is a yellow to white variable star. The star's Iron Abundance is -2.12 with an error value of 9.99 Fe/H with the Sun has a value of 1 to put it into context.

CC Lyrae Apparent and Absolute Magnitudes

CC Lyrae has an apparent magnitude of 12.01 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. Using the supplied Parallax value, you would get an absolute magnitude of 2.58 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 CC Lyrae

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 1.30 which gave the calculated distance to CC Lyrae as 2508.95 light years away from Earth or 769.23 parsecs. It would take a spaceship travelling at the speed of light, 2508.95 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of CC Lyrae

The star is a pulsating W Virginis Stars, A 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. CC Lyrae brightness ranges from a magnitude of 12.551 to a magnitude of 11.767 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 23.9 days (variability).

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.

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Additional CC Lyrae Facts and Figures

Visual Facts

Primary / Proper / Traditional NameCC Lyrae
Alternative NamesCC Lyr, HIP 91015, CC Lyr
Spectral TypeFOp
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourYellow - White
GalaxyMilky Way
Absolute Magnitude 2.58
Visual / Apparent Magnitude12.01
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)18h 33m 57.41
Declination (Dec.)+31° 38` 24.2
Galactic Latitude17.27 degrees
Galactic Longitude60.19 degrees
Distance from Earth1.30 Parallax (milliarcseconds)
 2508.95 Light Years
 769.23 Parsecs
 158,663,971.32 Astronomical Units
B-V Index-99.00
Radial Velocity-29.00 ± 2.90 km/s
Iron Abundance-2.12 ± 9.99 Fe/H

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassPulsating
Variable Star TypeW Virginis Stars, A
Mean Variability Period in Days23.922
Variable Magnitude Range (Brighter - Dimmer)11.767 - 12.551

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

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