Астронет: Астрономическая картинка дня Восход комет Бредфилда и LINEAR http://variable-stars.ru/db/msg/1197917/eng |
Credit & Copyright: Wally Pacholka (Astropics)
Explanation:
Comet Bradfield
is easy to see on the left, but can you find
Comet LINEAR on the right?
Last week, just before sunrise from the northern hemisphere,
two bright comets were visible in the
same part of the sky at the same time.
The above long-exposure image was taken on the morning of April 25 from
Joshua Tree National Park in
California,
USA.
Comet C/2004 F4 (Bradfield)
is giving an unexpectedly good show as it recedes from the
Sun and
Earth and fades from view.
It's tail is estimated by some to be about 10
degrees long.
Having just rounded the Sun itself,
Comet C/2002 T7 (LINEAR) is now moving toward the Earth.
Although intrinsically fading, T7 will
appear to brighten until about mid-May and so
continue to be visible to the unaided eye before
sunrise to southern hemisphere observers into June.
Q4, the third coincidental naked eye comet,
will become visible in mid-May to northern hemisphere observers.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.