TEX 0145+386 - Quasar
The quasar with the designation "TEX 0145+386" can be found in the constellation Andromeda. With a redshift of z=1.48 the light travel time can be
determined to 9.49 billion years. But due to the expansion of the universe the current distance is even 14.5 billion light-years and every second the QSO
moves another 215,000 kilometers away from us.
The absolute magnitude of M= -29.1mag corresponds to a luminosity of 37 trillion suns. Even if the QSO would be in the center of the Andromeda galaxy,
it would still be as bright as Venus in the evening sky. But its apparent brightness is only about 16.5mag due to the huge distance and therefore one needs
even a large telescope to see it.
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The quasar appears extremely faint even in my 20 inch and only popped up a few times during the observation, then immediately disappeared back into
the darkness of the universe. It seems that it is a bit fainter than the 16.5mag mentioned above.
