This in turn provides a distance estimate to the cluster, based on the visual magnitude of the stars.

As a result he was able to come up with a distance estimate of 500,000 light-years.

Its size, however, was impossible to guess without a distance estimate.

However, based on its redshift-independent distance estimates, it may range from 5 to 15 million light years.

Subsequent observations, however, have failed to confirm these distance estimates.

This one seems to be extra-solar, but we need a history and a parallax to give us a distance estimate.

Other individual objects can have fundamental distance estimates made for them under special circumstances.

This was three times further than the commonly accepted distance estimate of the period but was much closer to the modern value.

Therefore, there are only distance estimates of this object, obtained by indirect means (see table).

Recent data indicates his distance estimate is five times too close.