Universe GuideSearchTwitterComments

XY Fornacis

XY Fornacis Facts

XY Fornacis's Alternative Names

HIP9208 is the reference name for the star in the Hipparcos Star Catalogue.

XY Fornacis has alternative name(s) :- XY For, XY For.

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

Location of XY Fornacis

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 XY Fornacis, the location is 01h 58m 27.00 and -36° 48` 53.9 .

Physical Properties (Colour, Temperature) of XY Fornacis

XY Fornacis Colour and Temperature

XY Fornacis has a spectral type of K2. This means the star is a orange to red variable star. The star has a B-V Colour Index of 1.58 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 3,828 Kelvin.

XY Fornacis Apparent and Absolute Magnitudes

XY Fornacis has an apparent magnitude of 9.49 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 XY Fornacis

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.60 which gave the calculated distance to XY Fornacis as -5436.06 light years away from Earth or -1666.67 parsecs. It would take a spaceship travelling at the speed of light, -5436.06 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of XY Fornacis

The star is a pulsating Semi-Regular Star w 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. XY Fornacis brightness ranges from a magnitude of 9.865 to a magnitude of 9.473 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 6.8 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.

Hide Explanations
Show GridLines

Additional XY Fornacis Facts and Figures

Visual Facts

Primary / Proper / Traditional NameXY Fornacis
Alternative NamesXY For, HIP 9208, XY For
Spectral TypeK2
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourOrange to Red
GalaxyMilky Way
Visual / Apparent Magnitude9.49
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)01h 58m 27.00
Declination (Dec.)-36° 48` 53.9
Galactic Latitude-72.84 degrees
Galactic Longitude251.46 degrees
Distance from Earth-0.60 Parallax (milliarcseconds)
 -5436.06 Light Years
 -1666.67 Parsecs
 -343,772,969.18 Astronomical Units
B-V Index1.58

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassPulsating
Variable Star TypeSemi-Regular Star w
Mean Variability Period in Days6.791
Variable Magnitude Range (Brighter - Dimmer)9.473 - 9.865

Estimated Calculated Facts

Effective Temperature3,828 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

There's no register feature and no need to give an email address if you don't need to. All messages will be reviewed before being displayed. Comments may be merged or altered slightly such as if an email address is given in the main body of the comment.

This website is using cookies. More info. That's Fine