HIP35726 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD57066.
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 B. The Flamsteed name can be shortened to 20 Lyn B.
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 1420A.
More details on objects' alternative names can be found at Star Names .
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 B, the location is 07h 22m 13.63 and +50 ° 08` 52.1 .
Based on the star's spectral type of F0 , 20 Lyncis B's colour and type is yellow to white multiple star system. The star has a B-V Colour Index of 0.17 which means the star's temperature is about 7,653 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.
20 Lyncis B has an apparent magnitude of 7.72 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.
Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -2.00000 which gave the calculated distance to 20 Lyncis B as -1630.82 light years away from Earth or -500 parsecs. If you want that in miles, it is about -9,586,979,831,095,294.86, based on 1 Ly = 5,878,625,373,183.61 miles.
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.
|Primary / Proper / Traditional Name||20 Lyncis B|
|Alternative Names||HD 57066, HIP 35726, 20 Lyn B, BD+50 1420A|
|Constellation's Main Star||No|
|Multiple Star System||Yes|
|Star Type||Multiple Star System|
|Colour||Yellow - White|
|Visual / Apparent Magnitude||7.72|
|Naked Eye Visible||Requires a 7x50 Binoculars - Magnitudes|
|Right Ascension (R.A.)||07h 22m 13.63|
|Declination (Dec.)||+50 ° 08` 52.1|
|Galactic Latitude||25.24224995 degrees|
|Galactic Longitude||167.52559360 degrees|
|Distance from Earth||-2.00000 Parallax (milliarcseconds)|
|-1630.82 Light Years|
|-103,131,684.49 Astronomical Units|
|Radial Velocity||5.40000 ± 1.78 km/s|
|Associated / Clustered Stars||20 Lyncis A|
|Effective Temperature||7,653 Kelvin|
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