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CD Piscium

CD Piscium Facts

  • CD Piscium is a variable star that can be located in the constellation of Pisces. The description is based on the spectral class.
  • CD Piscium is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (G0) 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 -2787.72 light years away from us. Distance

CD Piscium's Alternative Names

HIP1938 is the reference name for the star in the Hipparcos Star Catalogue.

CD Piscium has alternative name(s) :- CD Psc, CD Psc.

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+04 47.

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

Location of CD Piscium

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 CD Piscium, the location is 00h 24m 27.95 and +05° 42` 43.1 .

Physical Properties of CD Piscium

CD Piscium Temperature and Colour

Based on the star's spectral type of G0 , CD Piscium's colour and type is yellow variable star. The star has a B-V Colour Index of 0.58 which means the star's temperature is about 5,921 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

CD Piscium Radius

CD Piscium Apparent and Absolute Magnitudes

CD Piscium has an apparent magnitude of 9.77 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 CD Piscium

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -1.17000 which gave the calculated distance to CD Piscium as -2787.72 light years away from Earth or -854.70 parsecs. If you want that in miles, it is about -16,387,961,525,331,413.27, based on 1 Ly = 5,878,625,373,183.61 miles.

CD Piscium brightness ranges from a magnitude of 9.979 to a magnitude of 9.838 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 37.2 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 CD Piscium Facts and Figures

Visual Facts


Primary / Proper / Traditional NameCD Piscium
Alternative NamesCD Psc, HIP 1938, BD+04 47, CD Psc
Spectral TypeG0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourYellow
GalaxyMilky Way
ConstellationPisces
Visual / Apparent Magnitude9.77
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)00h 24m 27.95
Declination (Dec.)+05° 42` 43.1
Galactic Latitude-56.51813732 degrees
Galactic Longitude110.70522083 degrees
Distance from Earth-1.17000 Parallax (milliarcseconds)
 -2787.72 Light Years
 -854.70 Parsecs
 -176,293,301.47 Astronomical Units
B-V Index0.58
Radial Velocity-10.00000 ± 999.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Mean Variability Period in Days37.210
Variable Magnitude Range (Brighter - Dimmer)9.838 - 9.979

Estimated Calculated Facts


Effective Temperature5,921 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


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