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A fifth-magnitude star in the western parts of Monoceros, near the point where that constellation meets the southern parts of Orion (and hence HR 2205 lies almost directly eastward of the Sword of Orion). This faint star falls less than a degree from the more prominent Gamma Monocerotis, which shines much more brightly in the skies of Earth. In fact, HR 2205 is considerably more luminous than Gamma Monocerotis, but at a distance of more than a thousand light years, it appears to be the fainter of the two stars.
HR 2205 is a main sequence star with a high temperature. At approximately 21,000 K, it is nearly four times hotter than the Sun, placing it in the hot blue B-type spectral classification. It has more the seven times the mass and the diameter of the Sun, and emits nearly nine thousand times the Sun's energy.
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