HIP97456 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD187282.
More details on objects' alternative names can be found at Star Names .
The location of the wolf-rayet 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 HD 187282, the location is 19h 48m 32.20 and +18° 12` 03.7 .
The star is a Wolf-Rayet, a rare type of star of which not many are known. These stars are extremely luminous and large compared to our Sun. They live fast and die hard in a matter of millions not billions of years like our Sun. They exhaust their hydrogen supplies, turning to other gasses and expand outwards with massive solar winds, moving a step closer in the stellar evolution towards their death in a super or hypernova explosion.
Based on the star's spectral type of WN4 (SB1) The star has a B-V Colour Index of -0.01 which means the star's temperature is about 10,551 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.
HD 187282 has an apparent magnitude of 10.43 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 -0.19000 which gave the calculated distance to HD 187282 as -17166.49 light years away from Earth or -5263.16 parsecs. If you want that in miles, it is about -100,915,363,682,502,709.23, 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||HD 187282|
|Alternative Names||HD 187282, HIP 97456, WR 128|
|Spectral Type||WN4 (SB1)|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Star Type||Wolf-Rayet star|
|Visual / Apparent Magnitude||10.43|
|Naked Eye Visible||Requires a 4.5 - 6 Inch Telescope - Magnitudes|
|Right Ascension (R.A.)||19h 48m 32.20|
|Declination (Dec.)||+18° 12` 03.7|
|Galactic Latitude||-3.78644288 degrees|
|Galactic Longitude||55.61529455 degrees|
|Distance from Earth||-0.19000 Parallax (milliarcseconds)|
|-17166.49 Light Years|
|-1,085,597,113.10 Astronomical Units|
|Radial Velocity||100.00000 ± 10.00 km/s|
|Effective Temperature||10,551 Kelvin|
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