<s>
The	O
Wide	B-Algorithm
Field	I-Algorithm
Camera	I-Algorithm
3	I-Algorithm
(	O
WFC3	B-Algorithm
)	O
is	O
the	O
Hubble	O
Space	O
Telescope	O
's	O
last	O
and	O
most	O
technologically	O
advanced	O
instrument	O
to	O
take	O
images	O
in	O
the	O
visible	O
spectrum	O
.	O
</s>
<s>
It	O
was	O
installed	O
as	O
a	O
replacement	O
for	O
the	O
Wide	B-Algorithm
Field	I-Algorithm
and	I-Algorithm
Planetary	I-Algorithm
Camera	I-Algorithm
2	I-Algorithm
during	O
the	O
first	O
spacewalk	O
of	O
Space	O
Shuttle	O
mission	O
STS-125	O
(	O
Hubble	O
Space	O
Telescope	O
Servicing	O
Mission	O
4	O
)	O
on	O
May	O
14	O
,	O
2009	O
.	O
</s>
<s>
WFC3	B-Algorithm
was	O
still	O
operating	O
.	O
</s>
<s>
The	O
instrument	O
has	O
two	O
independent	O
light	O
paths	O
:	O
a	O
UV	O
and	O
optical	O
channel	O
that	O
uses	O
a	O
pair	O
of	O
charge-coupled	B-Algorithm
devices	I-Algorithm
(	O
CCD	O
)	O
to	O
record	O
images	O
from	O
200	O
to	O
1000nm	O
;	O
and	O
a	O
near	O
infrared	O
detector	O
array	O
that	O
covers	O
the	O
wavelength	O
range	O
from	O
800	O
to	O
1700nm	O
.	O
</s>
<s>
The	O
UV/optical	O
channel	O
has	O
two	O
CCDs	O
,	O
each	O
2048×4096	O
pixels	B-Algorithm
,	O
while	O
the	O
IR	O
detector	O
is	O
1024×1024	O
.	O
</s>
<s>
The	O
optical	O
channel	O
has	O
a	O
field	O
of	O
view	O
of	O
164	O
by	O
164	O
arcsec	O
(	O
2.7	O
by	O
2.7	O
arcminute	O
,	O
about	O
8.5	O
%	O
of	O
the	O
diameter	O
of	O
the	O
full	O
moon	O
as	O
seen	O
from	O
Earth	O
)	O
with	O
0.04	O
arcsec	O
pixels	B-Algorithm
.	O
</s>
<s>
This	O
view	O
is	O
comparable	O
to	O
the	O
Wide	B-Algorithm
Field	I-Algorithm
and	I-Algorithm
Planetary	I-Algorithm
Camera	I-Algorithm
2	I-Algorithm
and	O
is	O
slightly	O
smaller	O
than	O
that	O
of	O
the	O
Advanced	B-Algorithm
Camera	I-Algorithm
for	I-Algorithm
Surveys	I-Algorithm
.	O
</s>
<s>
The	O
near	O
infrared	O
channel	O
has	O
a	O
field	O
of	O
view	O
of	O
135	O
by	O
127	O
arcsec	O
(	O
2.3	O
by	O
2.1	O
arcminutes	O
)	O
with	O
0.13	O
arcsec	O
pixels	B-Algorithm
,	O
and	O
has	O
a	O
much	O
larger	O
field	O
of	O
view	O
than	O
Near	B-Algorithm
Infrared	I-Algorithm
Camera	I-Algorithm
and	O
Multi-Object	O
Spectrometer	O
,	O
which	O
it	O
was	O
designed	O
to	O
largely	O
replace	O
.	O
</s>
<s>
This	O
allows	O
WFC3	B-Algorithm
to	O
be	O
cooled	O
using	O
a	O
thermoelectric	O
cooler	O
instead	O
of	O
carrying	O
a	O
consumable	O
cryogen	O
to	O
cool	O
the	O
instrument	O
.	O
</s>
<s>
The	O
camera	O
makes	O
use	O
of	O
returned	O
space	O
hardware	O
as	O
the	O
structure	O
is	O
built	O
from	O
the	O
original	O
Wide	B-Algorithm
Field	I-Algorithm
and	I-Algorithm
Planetary	I-Algorithm
Camera	I-Algorithm
as	O
well	O
as	O
the	O
filter	O
assembly	O
.	O
</s>
<s>
These	O
were	O
switched	O
for	O
the	O
Wide	B-Algorithm
Field	I-Algorithm
and	I-Algorithm
Planetary	I-Algorithm
Camera	I-Algorithm
2	I-Algorithm
by	O
the	O
servicing	O
mission	O
STS-61	O
in	O
December	O
1993	O
.	O
</s>
<s>
WFC3	B-Algorithm
was	O
originally	O
conceived	O
as	O
an	O
optical	O
channel	O
only	O
;	O
the	O
near	O
infrared	O
channel	O
was	O
added	O
later	O
.	O
</s>
<s>
WFC3	B-Algorithm
is	O
intended	O
to	O
ensure	O
that	O
Hubble	O
retains	O
a	O
powerful	O
imaging	O
capability	O
through	O
to	O
the	O
end	O
of	O
its	O
lifetime	O
.	O
</s>
<s>
WFC3	B-Algorithm
had	O
been	O
in	O
the	O
planning	O
since	O
the	O
Spring	O
of	O
1998	O
.	O
</s>
<s>
WFC3	B-Algorithm
was	O
constructed	O
mostly	O
at	O
Goddard	O
Space	O
Flight	O
Center	O
and	O
Ball	O
Aerospace	O
in	O
Colorado	O
.	O
</s>
<s>
The	O
mission	O
launched	O
on	O
11	O
May	O
2009	O
and	O
the	O
WFC3	B-Algorithm
was	O
installed	O
on	O
14	O
May	O
.	O
</s>
<s>
The	O
image	O
was	O
photographed	O
by	O
the	O
Hubble	O
Telescope	O
's	O
Wide	B-Algorithm
Field	I-Algorithm
Camera	I-Algorithm
3	I-Algorithm
,	O
installed	O
in	O
2009	O
,	O
and	O
produced	O
using	O
near-infrared	O
and	O
visible	O
light	O
exposure	O
.	O
</s>
<s>
The	O
1995	O
version	O
of	O
this	O
picture	O
of	O
part	O
of	O
the	O
Eagle	O
nebula	O
was	O
taken	O
with	O
WFPC2	B-Algorithm
.	O
</s>
<s>
On	O
January	O
8	O
,	O
2019	O
,	O
the	O
instrument	O
experienced	O
a	O
suspected	O
hardware	O
problem	O
and	O
the	O
onboard	O
computer	O
suspended	O
operations	O
with	O
the	O
WFC3	B-Algorithm
while	O
other	O
instruments	O
continued	O
operation	O
.	O
</s>
