Worse Still...
There is a
calibration crisis.
There
are few well-calibrated stars, mainly around the equator.
The
faintest well-calibrated stars in UBVRI are around magnitude 15,
but astronomers are regularly observing objects that are magnitude
25 and fainter.
A
10-m telescope will saturate in 1s at magnitude 19!!!
Even the
ultimate photometric catalogue Tycho has major
problems
Like
Claudia Schiffer, it looks
good on the outside.
But, the discerning astronomer really needs something that
goes a lot deeper.
It
comes with a lot of baggage and style issues. What looks good,
may not be apt for normal, daily use.
