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HD 169454

HD 169454 Facts

HD 169454's Alternative Names

HIP90281 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD169454.

HD 169454 has alternative name(s) :- , V430 Sct.

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-14 5039.

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

Location of HD 169454

The location of the supergiant 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 HD 169454, the location is 18h 25m 15.19 and -13° 58` 42.3 .

Physical Properties (Colour, Temperature) of HD 169454

HD 169454 has a spectral type of B1Ia. This means the star is a blue supergiant star. The star has a B-V Colour Index of 0.77 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 5,490 Kelvin.

HD 169454 Apparent and Absolute Magnitudes

HD 169454 has an apparent magnitude of 6.61 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 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 HD 169454

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.00 which gave the calculated distance to HD 169454 as -1 light years away from Earth or -1 parsecs. It would take a spaceship travelling at the speed of light, -1 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of HD 169454

The star is a pulsating Alpha Cygnus 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. HD 169454 brightness ranges from a magnitude of 6.777 to a magnitude of 6.687 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.1 days (variability).

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.

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Additional HD 169454 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHD 169454
Alternative NamesHD 169454, HIP 90281, BD-14 5039, V430 Sct
Spectral TypeB1Ia
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type very luminous Supergiant Star
ColourBlue
GalaxyMilky Way
ConstellationScutum
Visual / Apparent Magnitude6.61
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)18h 25m 15.19
Declination (Dec.)-13° 58` 42.3
Galactic Latitude-0.67 degrees
Galactic Longitude17.54 degrees
Distance from Earth0.00 Parallax (milliarcseconds)
 -1 Light Years
 -1 Parsecs
 -206,263.37 Astronomical Units
B-V Index0.77
Radial Velocity-25.20 ± 3.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassPulsating
Variable Star TypeAlpha Cygnus
Mean Variability Period in Days0.068
Variable Magnitude Range (Brighter - Dimmer)6.687 - 6.777

Estimated Calculated Facts


Effective Temperature5,490 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


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