The location of the 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 EBLM J0555–57Ab, the location is 05h 55m 32.68 and -57° 17` 26.0 .
EBLM J0555–57Ab has a spectral type of F8. This means the star is a blue to white star.
EBLM J0555–57Ab has an apparent magnitude of 9.98 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 3.54 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.
The Parallax of the star is given as 5.16 which gives a calculated distance to EBLM J0555–57Ab of 632.10 light years from the Earth or 193.80 parsecs. It would take a spaceship travelling at the speed of light, 632.10 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.
The star is roughly 39,973,840.91 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.
|Primary / Proper / Traditional Name||EBLM J0555–57Ab, Smallest Known Star in the Universe|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Colour||Yellow - White|
|Visual / Apparent Magnitude||9.98|
|Naked Eye Visible||Requires a 7x50 Binoculars - Magnitudes|
|Right Ascension (R.A.)||05h 55m 32.68|
|Declination (Dec.)||-57° 17` 26.0|
|Distance from Earth||5.16 Parallax (milliarcseconds)|
|632.10 Light Years|
|39,973,840.91 Astronomical Units|
|Argument Of Periastron||-53.70|
|Effective Temperature||5,717 Kelvin|
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