Universe Guide
HomeAliensConstellationsTelevision and Films ListFact ListGames ListWarcraftSearchTwitterFacebook

67 Ophiuchi, HD164353, HIP88192, HR6714

67 Ophiuchi is a blue supergiant star that can be located in the constellation of Ophiuchus. The description is based on the spectral class. The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.

67 Ophiuchi's Alternative Names

The Id of the star in the Yale Bright Star Catalogue is HR6714. HIP88192 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD164353.

Flamsteed designations are named after the creator, Sir John Flamsteed. Sir John numbered the stars in the constellation with a number and the latin name, this star's Flamsteed designation is 67 Ophiuchi with it shortened to 67 Oph.

The Gould star designation is one that was designed by American astronomer, Benjamin Apthorp Gould. Gould stars are predominantly in the Southern and Equatorial constellations but do appear in northern constellations such as Bootes and Orion. The star has the designation 191 G. Ophiuchi. There are no stars with a Gould designation in Ursa Major for example.

BD number is the number that the star was filed under in the Durchmusterung or Bonner Durchmusterung, a star catalogue that was put together by the Bonn Observatory between 1859 to 1903. The star's BD Number is BD+02 3458.

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

Location of 67 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 star is compared to the celestial equator and is expressed in degrees. For 67 Ophiuchi, the location is 18h 00m 38.72 and +02° 55` 53.7 .

Proper Motion of 67 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 -9.35 ± 0.33 miliarcseconds/year towards the north and 1.15 ± 0.54 miliarcseconds/year east if we saw them in the horizon. The Radial Velocity, that is the speed at which the star is moving away/towards us is -5.20000 km/s with an error of about 0.90 km/s .

67 Ophiuchi Luminosity

Luminosity is the amount of energy that a star pumps out and its relative to the amount that our star, the Sun gives out. The figure of 2,364.17 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

Physical Properties (Colour, Temperature) of 67 Ophiuchi

67 Ophiuchi has a spectral type of B5Ib. This means the star is a blue supergiant star. The star is 7,143.00 Parsecs from the Galactic Centre or terms of Light Years is 23,297.85 s. The star has a B-V Colour Index of 0.02 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 9,824 Kelvin.

67 Ophiuchi Radius has been calculated as being 22.93 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 15,953,388.65.km. If you need the diameter of the star, you just need to multiple the radius by 2. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 19.88. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures. The star's Iron Abundance is -0.01 with an error value of 0.04 Fe/H with the Sun has a value of 1 to put it into context.

67 Ophiuchi Apparent and Absolute Magnitudes

67 Ophiuchi has an apparent magnitude of 3.93 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of -4.26 If you used the 2007 Parallax value, you would get an absolute magnitude of -3.95. 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.

Distance to 67 Ophiuchi

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 2.30 which gave the calculated distance to 67 Ophiuchi as 1418.10 light years away from Earth or 434.78 parsecs. It would take a spaceship travelling at the speed of light, 1418.10 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

In 2007, Hipparcos data was revised with a new parallax of 2.65 which put 67 Ophiuchi at a distance of 1230.81 light years or 377.36 parsecs. It should not be taken as though the star is moving closer or further away from us. It is purely that the distance was recalculated.

The star's Galacto-Centric Distance is 7,143.00 Parsecs or 23,297.85 Light Years. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*.

Source of Information

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.

Hide Explanations
Show GridLines

67 Ophiuchi Facts

Visual Facts

Primary / Proper / Traditional Name67 Ophiuchi
Alternative NamesHD 164353, HIP 88192, HR 6714, 191 G. Ophiuchi, 67 Oph, BD+02 3458
Spectral TypeB5Ib
Multiple Star SystemYes
Star Type very luminous Supergiant Star
Colour blue
GalaxyMilky Way
Absolute Magnitude-4.26 / -3.95
Visual / Apparent Magnitude3.93
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)18h 00m 38.72
Declination (Dec.)+02° 55` 53.7
Galactic Latitude12.63 degrees
Galactic Longitude29.73 degrees
1997 Distance from Earth2.30 Parallax (milliarcseconds)
 1418.10 Light Years
 434.78 Parsecs
2007 Distance from Earth2.65 Parallax (milliarcseconds)
 1230.81 Light Years
 377.36 Parsecs
Galacto-Centric Distance23,297.85 Light Years / 7,143.00 Parsecs
Proper Motion Dec.-9.35 ± 0.33 milliarcseconds/year
Proper Motion RA.1.15 ± 0.54 milliarcseconds/year
B-V Index0.02
Radial Velocity-5.20 ± 0.90 km/s
Iron Abundance-0.01 ± 0.04 Fe/H
Semi-Major Axis7107.00
Stellar Luminosity (Lsun)2,364.17

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Facts

Calculated Effective Temperature9,824 Kelvin

Sources and Links

SIMBAD SourceLink

Multi-Star System

The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.

Proper Motion mas/yr
H.D. IdB.D. IdStar CodeMagnitudeR.A.Dec.SpectrumColourYear
164353+02 3458.0A3.90000-2.00000-10.00000B5Blue/White
+02 3459.0C8.50000-10.00000-18.000001823

Related Stars

Add a Comment

Email: (Optional)