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EV Scuti

EV Scuti Facts

  • EV Scuti is a pulsating luminous giant star that can be located in the constellation of Scutum. The description is based on the spectral class.
  • EV Scuti is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (G0IIvar) of the star, the star's colour is yellow .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about 3584.21 light years away from us. Distance

EV Scuti's Alternative Names

HIP91239 is the reference name for the star in the Hipparcos Star Catalogue.

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

BD number is the number that the star was filed under in the Durchmusterung or Bonner Durchmusterung, a star catalogue that was put together by the Bonn Observatory between 1859 to 1903. The star's BD Number is BD-08 4652.

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

Location of EV Scuti

The location of the luminous giant 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 EV Scuti, the location is 18h 36m 39.60 and -08° 11` 05.3 .

Physical Properties of EV Scuti

EV Scuti Temperature and Colour

Based on the star's spectral type of G0IIvar , EV Scuti's colour and type is yellow luminous giant star. The star has a B-V Colour Index of 1.12 which means the star's temperature is about 4,722 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

EV Scuti Radius

EV Scuti estimated radius has been calculated as being 14.02 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 9,752,949.22.km. If you need the diameter of the star, you just need to multiple the radius by 2. The figure is derived at by using the formula from SDSS rather than peer reviewed papers. It has been known to produce widely incorrect figures.

EV Scuti Apparent and Absolute Magnitudes

EV Scuti has an apparent magnitude of 10.19 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 -0.01 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 EV Scuti

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.91000 which gave the calculated distance to EV Scuti as 3584.21 light years away from Earth or 1098.90 parsecs. If you want that in miles, it is about 21,070,227,848,818,426.80, based on 1 Ly = 5,878,625,373,183.61 miles.

Travel Time to EV Scuti

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Walking4600,907,706,957.02
Car12020,030,256,898.57
Airbus A3807363,265,802,755.20
Speed of Sound (Mach 1)767.2693,132,709,425.02
Concorde (Mach 2)1,534.541,566,352,671.05
New Horizons Probe33,00072,837,297.81
Speed of Light670,616,629.003,584.21

Variable Type of EV Scuti

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. EV Scuti brightness ranges from a magnitude of 10.408 to a magnitude of 10.156 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 3.1 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 EV Scuti Facts and Figures

Visual Facts


Primary / Proper / Traditional NameEV Scuti
Alternative NamesEV Sct, HIP 91239, BD-08 4652, EV Sct
Spectral TypeG0IIvar
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeLuminous Giant Star
ColourYellow
GalaxyMilky Way
ConstellationScutum
Absolute Magnitude -0.01
Visual / Apparent Magnitude10.19
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)18h 36m 39.60
Declination (Dec.)-08° 11` 05.3
Galactic Latitude-0.46717789 degrees
Galactic Longitude23.96917085 degrees
Distance from Earth0.91000 Parallax (milliarcseconds)
 3584.21 Light Years
 1098.90 Parsecs
 226,662,816.18 Astronomical Units
B-V Index1.12
Radial Velocity17.69000 ± 0.14 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 Days3.091
Variable Magnitude Range (Brighter - Dimmer)10.156 - 10.408

Estimated Calculated Facts


Radius (x the Sun) 14.02
Effective Temperature4,722 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


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