The location of the dwarf 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 WD 1145+017, the location is 11h 48m 33.63 and +01 ° 28` 59.4 .
WD 1145+017 has a spectral type of DB. This means the star is a white dwarf star.
WD 1145+017 has an apparent magnitude of 17.00 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 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.
|Primary / Proper / Traditional Name||WD 1145+017|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Star Type||Dwarf Star|
|Visual / Apparent Magnitude||17.00|
|Naked Eye Visible||Requires 8m Telescope - Magnitudes|
|Right Ascension (R.A.)||11h 48m 33.63|
|Declination (Dec.)||+01 ° 28` 59.4|
|Name||Status||Mass (Jupiters)||Orbital Period (Days)||Eccentricity||Discovered||Semi-Major Axis||Periastron|
|WD 1145+017 b||Confirmed||2.1e-006||0.188||2015|
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