<s>
Sunspot	B-Application
drawing	I-Application
or	O
sunspot	B-Application
sketching	O
is	O
the	O
act	O
of	O
drawing	O
sunspots	B-Application
.	O
</s>
<s>
Sunspots	B-Application
are	O
darker	O
spots	O
on	O
the	O
Sun	O
's	O
photosphere	O
.	O
</s>
<s>
Sunspots	B-Application
were	O
probably	O
first	O
drawn	O
by	O
an	O
English	O
monk	O
John	O
of	O
Worcester	O
on	O
8	O
December	O
1128	O
.	O
</s>
<s>
There	O
are	O
records	O
of	O
observing	O
sunspots	B-Application
from	O
28	O
BC	O
,	O
but	O
that	O
is	O
the	O
first	O
known	O
drawing	O
of	O
sunspots	B-Application
,	O
almost	O
500	O
years	O
before	O
the	O
telescope	O
.	O
</s>
<s>
In	O
1612	O
,	O
Galileo	O
Galilei	O
was	O
writing	O
letters	O
on	O
sunspots	B-Application
to	O
Mark	O
Welser	O
.	O
</s>
<s>
It	O
seems	O
like	O
he	O
was	O
observing	O
the	O
Sun	O
and	O
drawing	O
sunspots	B-Application
without	O
any	O
filter	O
,	O
which	O
is	O
very	O
hard	O
.	O
</s>
<s>
In	O
the	O
same	O
year	O
,	O
his	O
student	O
Benedetto	O
Castelli	O
invented	O
a	O
new	O
method	O
for	O
observing	O
and	O
drawing	O
sunspots	B-Application
,	O
the	O
projection	O
method	O
.	O
</s>
<s>
The	O
Mount	O
Wilson	O
observatory	O
started	O
drawing	O
sunspots	B-Application
by	O
hand	O
in	O
1917	O
.	O
</s>
<s>
The	O
early	O
drawers	O
did	O
not	O
draw	O
their	O
shapes	O
and	O
positions	O
very	O
accurately	O
because	O
they	O
wanted	O
just	O
to	O
mark	O
where	O
the	O
sunspots	B-Application
were	O
on	O
the	O
magnetic	O
data	O
.	O
</s>
<s>
However	O
,	O
in	O
modern	O
times	O
,	O
the	O
drawers	O
became	O
very	O
accurate	O
and	O
sunspot	B-Application
drawing	I-Application
became	O
art	O
;	O
sometimes	O
they	O
needed	O
many	O
hours	O
to	O
complete	O
work	O
.	O
</s>
<s>
On	O
the	O
white	O
acid-free	O
paper	O
,	O
they	O
draw	O
a	O
circle	O
with	O
solar	O
coordinates	O
and	O
draw	O
and	O
mark	O
sunspots	B-Application
.	O
</s>
<s>
But	O
for	O
better	O
viewings	O
of	O
the	O
sunspots	B-Application
one	O
needs	O
a	O
telescope	O
with	O
8	O
inches	O
of	O
diameter	O
or	O
more	O
.	O
</s>
<s>
There	O
are	O
two	O
ways	O
of	O
drawing	O
sunspots	B-Application
:	O
projection	O
and	O
direct	O
viewing	O
.	O
</s>
<s>
The	O
easiest	O
way	O
to	O
draw	O
sunspots	B-Application
is	O
to	O
project	O
the	O
image	O
of	O
the	O
Sun	O
to	O
the	O
screen	O
.	O
</s>
<s>
When	O
the	O
Sun	O
is	O
projected	O
,	O
there	O
are	O
two	O
ways	O
for	O
drawing	O
sunspots	B-Application
:	O
you	O
can	O
project	O
Sun	O
on	O
the	O
screen	O
,	O
look	O
at	O
it	O
and	O
draw	O
sunspots	B-Application
on	O
the	O
table	O
,	O
but	O
you	O
can	O
also	O
project	O
the	O
Sun	O
on	O
the	O
drawing	O
paper	O
,	O
just	O
mark	O
the	O
position	O
and	O
draw	O
the	O
shape	O
.	O
</s>
<s>
One	O
can	O
look	O
directly	O
in	O
the	O
telescope	O
in	O
that	O
case	O
and	O
draw	O
the	O
sunspots	B-Application
whilst	O
looking	O
at	O
them	O
.	O
</s>
