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Results tagged with observational-astronomy
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user 19839
Questions about the techniques and practice of observing the night sky.
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How to visually tell the difference between a planetary nebula and a supernova remnant?
A Supernova Remnant contains a Black Hole or a Neutron Star while a Planetary Nebula contains a White Dwarf.
Also, Supernovae Remnants are likely to have great velocities, so Doppler is another plau …
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