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Spectrohelioscope
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Helioscope/U2H2BDfm">Helioscope</a></li> <li><a href="/facts/Heliometer/BDXGVUJn">Heliometer</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://spectrohelioscope.org">An amateur-made spectrohelioscope</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Information on observatories including Meudon <a href="http://www.bbso.njit.edu/Research/Halpha/ha_inst.html" target="_blank">http://www.bbso.njit.edu/Research/Halpha/ha_inst.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>