<FCFORMSHEADER>
<?xml version="1.0"?>

<!DOCTYPE FIRSTCLASS SYSTEM "firstclass.dtd">

<firstclass>

	<fcobject objtype="oConfItem" formid="141" objname="Andy Norton">

		<field id="8018" index="0" type="number">23032</field>

		<subject index="0" >Re: Time Frame</subject>

		<tonames index="0" >S194 06E real time observing</tonames>

		<tonames index="1" ></tonames>

		<ccnames index="0" ></ccnames>

		<bccnames index="0" ></bccnames>

	</fcobject>

</firstclass>

</FCFORMSHEADER>
Stuart Spencer 2 writes:
Hi everyone. Ive just finished reading all the posts in this playing catch up for 30 mins!

Im just wondering if what sort of time frame you have between taking images of say M51 and still being able to combine them into a reasonable image.  Few days weeks?

The galaxy itself won't change much on timescales of years - barring the odd supernova!

But to combine images successfully, you'll need the same telescope & detector set up
or have to resort to some nifty image manipulation to get things to agree.

Andy