Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
True For Black Holes

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Richard Ruquist on December 19, 2001 14:38:14 UTC

As objects cross the event horizon of a black hole, the light emitted by them as observed on earth, is frozen at the horizon. We never see the objects actually cross the horizon. But the frequency of the light continues to decrease. So using the red shift correlation with distance, we would observe these objects as being further and further from the earth.

However, this is not yet true for the horizon of the universe as the universe is not yet old enough for light from stars that are receding from us at the speed of light to have reached us. According to Loeb, that will require another 6 billion years of aging. There is such stars and such light heading this way, but it will not arrive for 5-6 billion years. The CMBR will disappear first in about 5 billion years.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2023 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins