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Circinus X-1

Circinus X-1 Facts

Circinus X-1's Alternative Names

Circinus X-1 has alternative name(s) :- BR Circinus.

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

Location of Circinus X-1

The location of the 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 Circinus X-1, the location is 15h 20m 40.85 and -57° 10` 00.1 .

Physical Properties (Colour) of Circinus X-1

Circinus X-1 has a spectral type of B5-A0. This means the star is a blue star. Circinus X-1 lies at a distance of 31,000.00 light years away from our Sun and our planet Earth or to put it another way, 9,504.44 parsecs away from the Sun.

Circinus X-1 Apparent and Absolute Magnitudes

Circinus X-1 has an apparent magnitude of 21.40 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 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 Circinus X-1

Circinus X-1 is an estimated 31,000.00 light years from our Solar System (Earth and Sun). It would take a spaceship 31,000.00 years travelling at the speed of light to get there. We don't have a space ship that can travel that distance or at that speed yet.

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Additional Circinus X-1 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameCircinus X-1
Alternative NamesBR Circinus
Spectral TypeB5-A0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourBlue
GalaxyMilky Way
ConstellationCircinus
Visual / Apparent Magnitude21.40
Naked Eye VisibleRequires 8m Telescope - Magnitudes
Right Ascension (R.A.)15h 20m 40.85
Declination (Dec.)-57° 10` 00.1
Distance from the Sun / Earth31,000.00 Light Years
Eccentricity0.45
Argument Of Periastron2.00

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Sources and Links


Sourcehttps://en.wikipedia.org/wiki/Circinus_X-1

Related Stars


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