HD 51799

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HD 51799 is a red giant star in the Puppis constellation. It lies about 860 light-years away from Earth and shines with an apparent magnitude of roughly 4.95, making it visible to the naked eye under good skies.

Its stellar type is M1III, meaning it is a cool, red giant. The star has a surface temperature of about 3,780 K and radiates roughly 2,500 times the Sun’s luminosity.

HD 51799 is considered to be a semiregular variable star of the SRb type, though this variability is not definitively confirmed.

In the sky, its coordinates are around right ascension 06h 56m 16s and declination −48° 43′ 16″ (J2000). It has a modest proper motion of about +1.01 mas/yr in right ascension and +7.57 mas/yr in declination, and a radial velocity of about +22 km/s. The measured parallax is about 3.79 mas.

The star has several catalog identifiers, including HIP 33357, HD 51799, HR 2608, GC 9137, CD-48 2601, GSC 08122-01697, NSV 17249, and SAO 218324.