Universe Guide

AV Antliae

AV Antliae Facts

  • AV Antliae is a eruptive giant star that can be located in the constellation of Antlia. The description is based on the spectral class.
  • AV Antliae is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (M4III) of the star, the star's colour is 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 -5346.94 light years away from us. Distance

AV Antliae's Alternative Names

HIP51175 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD90624.

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

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

Location of AV Antliae

The location of the giant 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 AV Antliae, the location is 10h 27m 10.03 and -37° 12` 47.3 .

Physical Properties of AV Antliae

AV Antliae Temperature and Colour

Based on the star's spectral type of M4III , AV Antliae's colour and type is red giant star. The star has a B-V Colour Index of 1.48 which means the star's temperature is about 4,025 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

AV Antliae Radius

AV Antliae Apparent and Absolute Magnitudes

AV Antliae has an apparent magnitude of 7.82 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 AV Antliae

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.61000 which gave the calculated distance to AV Antliae as -5346.94 light years away from Earth or -1639.34 parsecs. If you want that in miles, it is about -31,432,657,152,890,371.65, based on 1 Ly = 5,878,625,373,183.61 miles.

Variable Type of AV Antliae

The star is a eruptive Irregular 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. AV Antliae brightness ranges from a magnitude of 7.946 to a magnitude of 7.605 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.3 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 AV Antliae Facts and Figures

Visual Facts

Primary / Proper / Traditional NameAV Antliae
Alternative NamesHD 90624, HIP 51175, AV Ant
Spectral TypeM4III
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeGiant Star
GalaxyMilky Way
Visual / Apparent Magnitude7.82
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)10h 27m 10.03
Declination (Dec.)-37° 12` 47.3
Galactic Latitude17.28656910 degrees
Galactic Longitude273.52242441 degrees
Distance from Earth-0.61000 Parallax (milliarcseconds)
 -5346.94 Light Years
 -1639.34 Parsecs
 -338,135,791.31 Astronomical Units
B-V Index1.48

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassEruptive
Variable Star TypeIrregular
Mean Variability Period in Days0.306
Variable Magnitude Range (Brighter - Dimmer)7.605 - 7.946

Estimated Calculated Facts

Effective Temperature4,025 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

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