Universe Guide

20 Lyncis A

20 Lyncis A Facts

20 Lyncis A's Alternative Names

HIP35731 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD57067.

Flamsteed designations are named after the creator, Sir John Flamsteed. Sir John named the stars in the constellation with a number and its latin name, this star's Flamsteed designation is 20 Lyncis A. The Flamsteed name can be shortened to 20 Lyn A.

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+50 1420.

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

Location of 20 Lyncis A

The location of the multiple star system 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 20 Lyncis A, the location is 07h 22m 15.13 and +50 ° 08` 56.0 .

Physical Properties (Colour, Temperature) of 20 Lyncis A

20 Lyncis A Colour and Temperature

20 Lyncis A has a spectral type of F0. This means the star is a yellow to white multiple star system. The star has a B-V Colour Index of 0.32 which means the star's temperature is about 6,698 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu at being .

20 Lyncis A Apparent and Absolute Magnitudes

20 Lyncis A has an apparent magnitude of 7.49 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 20 Lyncis A

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -4.00 which gave the calculated distance to 20 Lyncis A as -815.41 light years away from Earth or -250 parsecs. If you want that in miles, it is -546,827,505,453.

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 20 Lyncis A Facts and Figures

Visual Facts

Primary / Proper / Traditional Name20 Lyncis A
Alternative NamesHD 57067, HIP 35731, 20 Lyn A, BD+50 1420
Spectral TypeF0
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeMultiple Star System
ColourYellow - White
GalaxyMilky Way
Visual / Apparent Magnitude7.49
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)07h 22m 15.13
Declination (Dec.)+50 ° 08` 56.0
Galactic Latitude25.25 degrees
Galactic Longitude167.53 degrees
Distance from Earth-4.00 Parallax (milliarcseconds)
 -815.41 Light Years
 -250 Parsecs
 -51,565,842.25 Astronomical Units
B-V Index0.32
Radial Velocity7.00 ± 4.40 km/s
Associated / Clustered Stars20 Lyncis B

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Effective Temperature6,698 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

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