<s>
Montage	B-Application
is	O
a	O
software	O
toolkit	O
used	O
in	O
astrophotography	O
to	O
assemble	O
astronomical	O
images	O
in	O
Flexible	O
Image	O
Transport	O
System	O
(	O
FITS	O
)	O
format	O
into	O
composite	O
images	O
,	O
called	O
mosaics	B-Application
,	O
that	O
preserve	O
the	O
calibration	O
and	O
positional	O
fidelity	O
of	O
the	O
original	O
input	O
images	O
.	O
</s>
<s>
Montage	B-Application
was	O
developed	O
to	O
support	O
scientific	O
research	O
.	O
</s>
<s>
There	O
is	O
also	O
associated	O
software	O
developed	O
by	O
the	O
Montage	B-Application
user	O
community	O
including	O
Bash	B-Operating_System
and	O
C	B-Operating_System
shell	I-Operating_System
scripts	O
to	O
make	O
mosaics	B-Application
,	O
and	O
the	O
montage-wrapper	O
Python	B-Language
application	O
programming	O
interface	O
,	O
a	O
part	O
of	O
the	B-Application
Astropy	I-Application
project	I-Application
.	O
</s>
<s>
Montage	B-Application
uses	O
a	O
BSD	B-Operating_System
3-Clause	I-Operating_System
License	O
,	O
which	O
permits	O
unlimited	O
redistribution	O
of	O
the	O
Montage	B-Application
code	O
for	O
any	O
purpose	O
as	O
long	O
as	O
its	O
copyright	O
notices	O
and	O
the	O
license	O
's	O
disclaimers	O
of	O
warranty	O
are	O
included	O
.	O
</s>
