Aladfar is the designation of the star Eta Lyrae. Aladfar belongs to the spectral class B2.5IV and possesses an apparent brightness of +4,39 mag. It is in a distance of approx.. 1040 light-years. The name (Arab) means "claws" (a down-pushing eagle). Coordinates (equinox 2000,0) Rektaszension: 19h13m45.50s declination: +39°08'46.0 "
Recently, Eta brightened by a full magnitude from 1950 to 1992 and is continuing its ascent (much to the surprise of astronomers).
At 18 microns, Eta Carinae is the brightest extra-solar object in the mid-infrared.
To observe Eta, first you must be located south of the equator because this superstar, at a declination of -60 degrees, will not rise for northern latitude observers.
Eta Carinae is one of the most interesting stars in the sky.
Eta Car has experienced several of these giant eruptions, the most recent being in the 1840's when the star reached magnitude -1 and much of the material we see as the surrounding Homunculus nebula was ejected (
Eta Car: April 2000 Variable Star of the Month A complete overview of the star's history, what is going on, and current observing strategies
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