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<p> an entry from <a href="http://www.alpheratz.net/observing/"><i>Marc Murison's Amateur Astronomy Weblog</i></a>:<br> <b>M3 on May 06, 2006</b> <p> <p><a href='javascript:ImageWindow("http://www.alpheratz.net/images/observing/M3_2x_2006-05-06.jpg",600,618,"external")'><img src="http://www.alpheratz.net/images/observing/M3_2x_2006-05-06_thumb.jpg" align="left" style="margin: 5px 5px 5px 0px;" border="0" alt="" name="" width="146" height="150" /></a><a href="http://www.seds.org/messier/m/m003.html" class="outlink" target="_blank">M3</a> (<a href="http://www.seds.org/~spider/ngc/ngc.cgi?ngc+5272" class="outlink" target="_blank">NGC 5272</a>).  Total integration time 160×10.0 sec = 26.7 min. The extent of this image is shown by the box on the image of M3 in the <a href="http://www.alpheratz.net/observing/m53_m3_and_ngc_4631_on_may_03_2006/">May 3 observing session</a>. M3 is 10.4 kpc from the Sun. The V magnitude of the horizontal branch is 15.7.<br clear="all"> </p>

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