Universe Guide

AY Antliae

AY Antliae Facts

  • AY Antliae is a variable star that can be located in the constellation of Antlia. The description is based on the spectral class.
  • AY Antliae is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (Kp) of the star, the star's colour is orange to red .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about -1863.79 light years away from us. Distance

AY Antliae's Alternative Names

HIP52239 is the reference name for the star in the Hipparcos Star Catalogue.

AY Antliae has alternative name(s) :- , AY Ant.

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

Location of AY Antliae

The location of the variable 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 AY Antliae, the location is 10h 40m 20.79 and -39° 56` 03.4 .

Physical Properties of AY Antliae

AY Antliae Temperature and Colour

Based on the star's spectral type of Kp , AY Antliae's colour and type is orange to red variable star. The star has a B-V Colour Index of 1.58 which means the star's temperature is about 3,828 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

AY Antliae Radius

AY Antliae Apparent and Absolute Magnitudes

AY Antliae has an apparent magnitude of 9.84 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 AY Antliae

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -1.75 which gave the calculated distance to AY Antliae as -1863.79 light years away from Earth or -571.43 parsecs. If you want that in miles, it is about -10,956,523,184,285,880.48, based on 1 Ly = 5,878,625,373,183.61 miles.

AY Antliae brightness ranges from a magnitude of 10.066 to a magnitude of 9.890 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 AY Antliae Facts and Figures

Visual Facts

Primary / Proper / Traditional NameAY Antliae
Alternative NamesHIP 52239, AY Ant
Spectral TypeKp
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourOrange to Red
GalaxyMilky Way
Visual / Apparent Magnitude9.84
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)10h 40m 20.79
Declination (Dec.)-39° 56` 03.4
Galactic Latitude16.33 degrees
Galactic Longitude277.31 degrees
Distance from Earth-1.75 Parallax (milliarcseconds)
 -1863.79 Light Years
 -571.43 Parsecs
 -117,865,076.94 Astronomical Units
B-V Index1.58

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Mean Variability Period in Days0.123
Variable Magnitude Range (Brighter - Dimmer)9.890 - 10.066

Estimated Calculated Facts

Effective Temperature3,828 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

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