There is exactly one object that can need a lot of memory: the Milky
Way. Therefore it's switched off by default. But if you want to see
the Milky Way on your maps, you probably should set the main memory size
of your TeX distribution to its maximal value. This is very
implementation specific. With teTeX (Linux) you have to find the
file texmf.cnf
and set `main_memory.latex
' to 7500000.
Then call (as root)
fmtutil --byfmt latex
With fpTeX/TeXLive (Windows) it's the same.
MikTeX however (Windows too) is different. Look for a directory
called localtexmf
. Then create the file1
localtexmf\miktex\config\miktex.ini
and write
mem_max=7500000
in it.
Alternatively (albeit not cleanly), look for an existing file called
miktex.ini
and change the line with mem_max
to the above.
These are the most common TeX variants. For others please have a look in the manual of your TeX distribution for definitive information.