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CF Cassiopeiae

CF Cassiopeiae Facts

CF Cassiopeiae's Alternative Names

HIP118174 is the reference name for the star in the Hipparcos Star Catalogue.

CF Cassiopeiae has alternative name(s) :- CF Cas, CF Cas.

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

Location of CF Cassiopeiae

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 CF Cassiopeiae, the location is 23h 58m 17.98 and +61° 13` 15.8 .

Physical Properties (Colour) of CF Cassiopeiae

CF Cassiopeiae has a spectral type of F8Ibvar. This means the star is a blue to white supergiant star.

CF Cassiopeiae Apparent and Absolute Magnitudes

CF Cassiopeiae has an apparent magnitude of 11.09 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 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 CF Cassiopeiae

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -3.20 which gave the calculated distance to CF Cassiopeiae as -1019.26 light years away from Earth or -312.5 parsecs. It would take a spaceship travelling at the speed of light, -1019.26 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of CF Cassiopeiae

The star is a pulsating Delta Cepheid 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. CF Cassiopeiae brightness ranges from a magnitude of 11.517 to a magnitude of 10.944 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 4.9 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 CF Cassiopeiae Facts and Figures

Visual Facts


Primary / Proper / Traditional NameCF Cassiopeiae
Alternative NamesCF Cas, HIP 118174, CF Cas
Spectral TypeF8Ibvar
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type very luminous Supergiant Star
ColourYellow - White
GalaxyMilky Way
ConstellationCassiopeia
Visual / Apparent Magnitude11.09
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)23h 58m 17.98
Declination (Dec.)+61° 13` 15.8
Galactic Latitude-0.99 degrees
Galactic Longitude116.58 degrees
Distance from Earth-3.20 Parallax (milliarcseconds)
 -1019.26 Light Years
 -312.5 Parsecs
 -64,457,302.81 Astronomical Units
B-V Index-99.00
Radial Velocity-77.80 ± 0.50 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassPulsating
Variable Star TypeDelta Cepheid
Mean Variability Period in Days4.876
Variable Magnitude Range (Brighter - Dimmer)10.944 - 11.517

Sources and Links


SIMBAD SourceLink

Related Stars


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