Universe Guide

CQ Circini

CQ Circini Facts

CQ Circini's Alternative Names

HIP72616 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD130437.

CQ Circini has alternative name(s) :- , CQ Cir.

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

Location of CQ Circini

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 CQ Circini, the location is 14h 50m 50.26 and -60° 17` 10.3 .

Physical Properties (Colour, Temperature) of CQ Circini

CQ Circini Colour and Temperature

CQ Circini has a spectral type of Be. This means the star is a blue variable star. The star has a B-V Colour Index of 0.61 which means the star's temperature is about 5,852 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu at being .

CQ Circini Apparent and Absolute Magnitudes

CQ Circini has an apparent magnitude of 9.84 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 CQ Circini

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.63 which gave the calculated distance to CQ Circini as -5177.20 light years away from Earth or -1587.30 parsecs. If you want that in miles, it is -3,471,916,411,659.

CQ Circini brightness ranges from a magnitude of 10.064 to a magnitude of 9.906 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

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 CQ Circini Facts and Figures

Visual Facts

Primary / Proper / Traditional NameCQ Circini
Alternative NamesHD 130437, HIP 72616, CQ Cir
Spectral TypeBe
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeVariable Star
GalaxyMilky Way
Visual / Apparent Magnitude9.84
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)14h 50m 50.26
Declination (Dec.)-60° 17` 10.3
Galactic Latitude-0.77 degrees
Galactic Longitude317.22 degrees
Distance from Earth-0.63 Parallax (milliarcseconds)
 -5177.20 Light Years
 -1587.30 Parsecs
 -327,401,845.59 Astronomical Units
B-V Index0.61
Radial Velocity-20.00 ± 4.70 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Mean Variability Period in Days0.086
Variable Magnitude Range (Brighter - Dimmer)9.906 - 10.064

Estimated Calculated Facts

Effective Temperature5,852 Kelvin

Sources and Links

SIMBAD SourceLink

Multi-Star System

The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.

Proper Motion mas/yr
H.D. IdB.D. IdStar CodeMagnitudeR.A.Dec.SpectrumColourYear
130437-59 5734.4A9.80000

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