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36 Ophiuchi B (Companion Star) Facts

36 Ophiuchi B Facts

36 Ophiuchi B's Alternative Names

The Id of the star in the Henry Draper catalogue is HD155885.

More details on objects' alternative names can be found at Star Names .

Location of 36 Ophiuchi B

The location of the main sequence 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 36 Ophiuchi B, the location is 17 15 20.9846233161 and -26 36 10.159381821 .

Radial Velocity and Proper Motion of 36 Ophiuchi B

Proper Motion

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 -1,142.06 milliarcseconds/year towards the north and -466.54 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is -0.20 km/s . 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 36 Ophiuchi B

36 Ophiuchi B Colour and Temperature

36 Ophiuchi B has a spectral type of K1V. This means the star is a orange to red main sequence star.

Distance to 36 Ophiuchi B

The Parallax of the star is given as 167.78 which gives a calculated distance to 36 Ophiuchi B of 19.44 light years from the Earth or 5.96 parsecs. It is about 13,036,787,268 miles from Earth.

The star is roughly 1,229,329.68 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.

Travel Time to 36 Ophiuchi B

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Walking43,259,196,816.94
Car120108,639,893.90
Airbus A38073617,713,026.18
Speed of Sound (Mach 1)767.26916,991,155.99
Concorde (Mach 2) 1,534.548,495,566.92
New Horizons Probe33,000395,054.16
Speed of Light670,616,629.0019.44

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Additional 36 Ophiuchi B Facts and Figures

Visual Facts


Primary / Proper / Traditional Name36 Ophiuchi B
Alternative NamesHD 155885
Spectral TypeK1V
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourOrange to Red
GalaxyMilky Way
ConstellationOphiuchus
Right Ascension (R.A.)17 15 20.9846233161
Declination (Dec.)-26 36 10.159381821
Distance from Earth167.78 Parallax (milliarcseconds)
 19.44 Light Years
 5.96 Parsecs
 1,229,329.68 Astronomical Units
Proper Motion Dec.-1142.06 milliarcseconds/year
Proper Motion RA.-466.54 milliarcseconds/year
Radial Velocity-0.20 km/s
Associated / Clustered Stars36 Ophiuchi
36 Ophiuchi C
Guniibuu

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=36%20Oph%20B

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