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SZ Ophiuchi

SZ Ophiuchi Facts

Location of SZ Ophiuchi

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 SZ Ophiuchi, the location is 17 15 02.7720313417 and -08 03 27.333822914 .

Proper Motion of SZ Ophiuchi

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving -13.27 milliarcseconds/year towards the north and -18.41 milliarcseconds/year east if we saw them in the horizon. . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

Physical Properties (Colour) of SZ Ophiuchi

SZ Ophiuchi Colour and Temperature

SZ Ophiuchi has a spectral type of A5 D~. This means the star is a blue star.

Distance to SZ Ophiuchi

The Parallax of the star is given as 2.65 which gives a calculated distance to SZ Ophiuchi of 1229.23 light years from the Earth or 376.87 parsecs. It would take a spaceship travelling at the speed of light, 1229.23 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 77,734,475.87 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.

Variable Type of SZ Ophiuchi

The star is a eclipsing binary sys Beta Persei (Algol) variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted.

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Additional SZ Ophiuchi Facts and Figures

Visual Facts

Primary / Proper / Traditional NameSZ Ophiuchi
Spectral TypeA5 D~
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Right Ascension (R.A.)17 15 02.7720313417
Declination (Dec.)-08 03 27.333822914
Distance from Earth2.65 Parallax (milliarcseconds)
 1229.23 Light Years
 376.87 Parsecs
 77,734,475.87 Astronomical Units
Proper Motion Dec.-13.27 milliarcseconds/year
Proper Motion RA.-18.41 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassEclipsing binary sys
Variable Star TypeBeta Persei (Algol)

Sources and Links


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Comments and Questions

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