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ZZ Canis Minoris, HIP35915

Primary Facts on ZZ Canis Minoris

  • ZZ Canis Minoris's star type is pulsating luminous giant star that can be located in the constellation of Canis Minor. The description is based on the spectral class.
  • ZZ Canis Minoris is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (M6Ib-II:pe) of the star, the star's colour is 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 2380.75 light years away from us.

ZZ Canis Minoris's Alternative Names

HIP35915 is the reference name for the star in the Hipparcos Star Catalogue.

ZZ Canis Minoris has alternative name(s) :- , ZZ 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+09 1633.

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

Location of ZZ Canis Minoris

The location of the 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 star is compared to the celestial equator and is expressed in degrees. For ZZ Canis Minoris, the location is 07h 24m 14.00 and +08° 53` 51.8 .

Physical Properties (Colour, Temperature) of ZZ Canis Minoris

ZZ Canis Minoris has a spectral type of M6Ib-II:pe. This means the star is a red luminous giant star. The star has a B-V Colour Index of 1.16 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 4,644 Kelvin.

ZZ Canis Minoris Radius has been calculated as being 10.94 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 7,613,730.80.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 and has been known to produce widely incorrect figures.

ZZ Canis Minoris Apparent and Absolute Magnitudes

ZZ Canis Minoris has an apparent magnitude of 9.92 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 0.60 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 ZZ Canis Minoris

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 1.37 which gave the calculated distance to ZZ Canis Minoris as 2380.75 light years away from Earth or 729.93 parsecs. It would take a spaceship travelling at the speed of light, 2380.75 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of ZZ Canis Minoris

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. ZZ Canis Minoris brightness ranges from a magnitude of 9.744 to a magnitude of 9.193 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.5 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 ZZ Canis Minoris Facts and Figures

Visual Facts


Primary / Proper / Traditional NameZZ Canis Minoris
Alternative NamesHIP 35915, BD+09 1633, ZZ CMi
Spectral TypeM6Ib-II:pe
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeLuminous Giant Star
Colour red
GalaxyMilky Way
ConstellationCanis Minor
Absolute Magnitude 0.60
Visual / Apparent Magnitude9.92
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)07h 24m 14.00
Declination (Dec.)+08° 53` 51.8
Galactic Latitude11.30 degrees
Galactic Longitude208.64 degrees
Distance from Earth1.37 Parallax (milliarcseconds)
 2380.75 Light Years
 729.93 Parsecs
 150,557,820.92 Astronomical Units
B-V Index1.16
Radial Velocity-14.00 ± 4.70 km/s

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 Days0.524
Variable Magnitude Range (Brighter - Dimmer)9.193 - 9.744

Estimated Facts


Calculated Effective Temperature4,644 Kelvin

Sources and Links


SIMBAD SourceLink

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