| Proper Name | None | | Bayer Designation | Epsilon Monocerotis | | Flamsteed Number | 8 Monocerotis | | HR (BSC) | 2298 (A), 2299 (B) | | HD | 44769 (A), 44770 (B) | | Constellation | Monoceros | | Right Ascension | 6h 23m 46s (A), 6h 23m 46s (B) | | Declination | +4° 35' 34" (A), +4° 35' 45" (B) | | Distance | 134 light years
41 parsecs | | Magnitude | Apparent: +4.4 (A), +6.6 (B)
Absolute: +1.5 (A), +3.7 (B) | | Spectral Class | A5IV white subgiant (A)
F5V bright yellow dwarf (B) | | Optimum Visibility | January | | Notes | Eastward and a little southward from Betelgeuse in Orion, this fourth-magnitude star is a useful guide for finding the Rosette Nebula, which lies just two degrees to its east. A binary system, the primary star Epsilon Monocerotis A is a white subgiant, while its companion Epsilon Monocerotis B is an bright yellow F-type dwarf. |
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