Universe Guide

FT Cancri

FT Cancri Facts

  • FT Cancri is a pulsating variable star that can be located in the constellation of Cancer. The description is based on the spectral class.
  • FT Cancri is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (K5) of the star, the star's colour is orange to red .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about 5436.06 light years away from us. Distance

FT Cancri's Alternative Names

HIP42826 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD74185.

FT Cancri has alternative name(s) :- , FT Cnc.

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+31 1868.

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

Location of FT Cancri

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 FT Cancri, the location is 08h 43m 34.86 and +31° 19` 01.9 .

Physical Properties of FT Cancri

FT Cancri Colour and Temperature

Based on the star's spectral type of K5 , FT Cancri's colour and type is orange to red variable star. The star has a B-V Colour Index of 1.69 which means the star's temperature is about 3,492 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

FT Cancri Radius

FT Cancri estimated radius has been calculated as being 87.25 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 60,710,746.50.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.

FT Cancri Apparent and Absolute Magnitudes

FT Cancri has an apparent magnitude of 8.44 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 -2.67 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 FT Cancri

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.60000 which gave the calculated distance to FT Cancri as 5436.06 light years away from Earth or 1666.67 parsecs. If you want that in miles, it is about 31,956,560,246,148,494.98, based on 1 Ly = 5,878,625,373,183.61 miles.

Travel Time to FT Cancri

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)
Airbus A3807364,953,141,619.89
Speed of Sound (Mach 1)767.2694,751,283,099.20
Concorde (Mach 2)1,534.542,375,638,453.37
New Horizons Probe33,000110,470,067.64
Speed of Light670,616,629.005,436.06

Variable Type of FT Cancri

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. FT Cancri brightness ranges from a magnitude of 8.629 to a magnitude of 8.431 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.2 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 FT Cancri Facts and Figures

Visual Facts

Primary / Proper / Traditional NameFT Cancri
Alternative NamesHD 74185, HIP 42826, BD+31 1868, FT Cnc
Spectral TypeK5
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourOrange to Red
GalaxyMilky Way
Absolute Magnitude -2.67
Visual / Apparent Magnitude8.44
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)08h 43m 34.86
Declination (Dec.)+31° 19` 01.9
Galactic Latitude36.46820797 degrees
Galactic Longitude192.59421482 degrees
Distance from Earth0.60000 Parallax (milliarcseconds)
 5436.06 Light Years
 1666.67 Parsecs
 343,772,969.18 Astronomical Units
B-V Index1.69

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 Days0.168
Variable Magnitude Range (Brighter - Dimmer)8.431 - 8.629

Estimated Calculated Facts

Radius (x the Sun)87.25
Effective Temperature3,492 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

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