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BV Canis Minoris

BV Canis Minoris Facts

  • BV Canis Minoris is a eclipsing binary sys variable star that can be located in the constellation of Canis Minor. The description is based on the spectral class.
  • BV Canis Minoris is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (B9) of the star, the star's colour is blue .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about 2695.56 light years away from us. Distance

BV Canis Minoris's Alternative Names

HIP38987 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD65396.

BV Canis Minoris has alternative name(s) :- BV CMi, BV CMi.

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+06 1840.

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

Location of BV Canis Minoris

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 BV Canis Minoris, the location is 07h 58m 45.18 and +05° 37` 23.8 .

Physical Properties of BV Canis Minoris

BV Canis Minoris Temperature and Colour

Based on the star's spectral type of B9 , BV Canis Minoris's colour and type is blue variable star. The star has a B-V Colour Index of -0.07 which means the star's temperature is about 12,523 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

BV Canis Minoris Radius

BV Canis Minoris estimated radius has been calculated as being 6.69 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 4,655,828.64.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.

BV Canis Minoris Apparent and Absolute Magnitudes

BV Canis Minoris has an apparent magnitude of 6.95 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 -2.64 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 BV Canis Minoris

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 1.21000 which gave the calculated distance to BV Canis Minoris as 2695.56 light years away from Earth or 826.45 parsecs. If you want that in miles, it is about 15,846,187,410,938,811.77, based on 1 Ly = 5,878,625,373,183.61 miles.

Travel Time to BV Canis Minoris

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)
Walking4451,921,840,116.81
Car12015,064,061,337.23
Airbus A3807362,456,096,957.16
Speed of Sound (Mach 1)767.2692,356,002,080.71
Concorde (Mach 2)1,534.541,177,999,505.04
New Horizons Probe33,00054,778,404.86
Speed of Light670,616,629.002,695.56

Variable Type of BV Canis Minoris

The star is a eclipsing binary sys Beta Persei (Algol) 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. BV Canis Minoris brightness ranges from a magnitude of 7.030 to a magnitude of 6.910 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 2.7 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 BV Canis Minoris Facts and Figures

Visual Facts


Primary / Proper / Traditional NameBV Canis Minoris
Alternative NamesBV CMi, HD 65396, HIP 38987, BD+06 1840, BV CMi
Spectral TypeB9
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeVariable Star
ColourBlue
GalaxyMilky Way
ConstellationCanis Minor
Absolute Magnitude -2.64
Visual / Apparent Magnitude6.95
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)07h 58m 45.18
Declination (Dec.)+05° 37` 23.8
Galactic Latitude17.52388830 degrees
Galactic Longitude215.58681512 degrees
Distance from Earth1.21000 Parallax (milliarcseconds)
 2695.56 Light Years
 826.45 Parsecs
 170,466,361.30 Astronomical Units
B-V Index-0.07

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassEclipsing binary sys
Variable Star TypeBeta Persei (Algol)
Mean Variability Period in Days2.683
Variable Magnitude Range (Brighter - Dimmer)6.910 - 7.030

Estimated Calculated Facts


Radius (x the Sun)6.69
Effective Temperature12,523 Kelvin

Sources and Links


SIMBAD SourceLink

Multi-Star System

The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.


Proper Motion mas/yr
H.D. IdB.D. IdStar CodeMagnitudeR.A.Dec.SpectrumColourYear
65396+06 1840.0A6.80000-12.00000-9.00000B9Blue/White
B10.60000-12.00000-9.000001924

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