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FR Scuti

FR Scuti Facts

FR Scuti's Alternative Names

HIP90115 is the reference name for the star in the Hipparcos Star Catalogue.

FR Scuti has alternative name(s) :- , FR Sct.

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

Location of FR Scuti

The location of the Zombie 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 FR Scuti, the location is 18h 23m 22.79 and -12° 40` 51.8 .

Physical Properties (Colour, Temperature) of FR Scuti

FR Scuti Colour and Temperature

FR Scuti has a spectral type of M2.5Iabep +B. This means the star is a red Zombie Star. The star has a B-V Colour Index of 1.64 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 3,659 Kelvin.

FR Scuti Apparent and Absolute Magnitudes

FR Scuti has an apparent magnitude of 9.79 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 FR Scuti

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -1.99 which gave the calculated distance to FR Scuti as 0 light years away from Earth or 0 parsecs. If you want that in miles, it is 0.

Variable Type of FR Scuti

The star is a cataclysmic Symbiotic s of the Z 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. FR Scuti brightness ranges from a magnitude of 10.058 to a magnitude of 9.643 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.4 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 FR Scuti Facts and Figures

Visual Facts


Primary / Proper / Traditional NameFR Scuti
Alternative NamesHIP 90115, FR Sct
Spectral TypeM2.5Iabep +B
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeZombie Star
ColourRed
GalaxyMilky Way
ConstellationScutum
Visual / Apparent Magnitude9.79
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)18h 23m 22.79
Declination (Dec.)-12° 40` 51.8
Galactic Latitude0.34 degrees
Galactic Longitude18.47 degrees
Distance from Earth-1.99 Parallax (milliarcseconds)
 0 Light Years
 0 Parsecs
 0.00 Astronomical Units
B-V Index1.64
Radial Velocity42.20 ± 999.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassCataclysmic
Variable Star TypeSymbiotic s of the Z
Mean Variability Period in Days0.367
Variable Magnitude Range (Brighter - Dimmer)9.643 - 10.058

Estimated Calculated Facts


Effective Temperature3,659 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


Comments and Questions

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