52 Orionis (HIP 27386)

52 Orionis is a white main-sequence star in the constellation Orion. It lies about 409 light years away. It is moving through the Galaxy at a speed of 45.2 km/s relative to the Sun.

Sky position: RA 5h 48.0m, Dec +6° 27.2'

Common designations: 52 Orionis, HR 1999, HD 38710, HIP 27386, Gaia DR3 3321343225549328000

52 Orionis has the spectral type A5V. A-type stars are white stars with surface temperatures of roughly 7,500 to 10,000 K. Their spectra are dominated by strong hydrogen lines, and many of them rotate rapidly. Its luminosity class V means it is a main-sequence (dwarf) star, still fusing hydrogen into helium in its core like the Sun.

How to find 52 Orionis in the sky

52 Orionis lies in Orion. With a declination of +6° 27.2', it is visible from the entire Northern Hemisphere and from the Southern Hemisphere down to about latitude 84° S. It is highest in the sky at local midnight around January, which makes the weeks around that month the best time to observe it.

Tabulated data for 52 Orionis

Astrometry and spectroscopy

Right Ascension (J2000)	87.00097377° (5h 48.0m)
Declination (J2000)	6.45415136° (+6° 27.2')
Galactic Longitude	199.75098437°
Galactic Latitude	-10.97629286°
Proper motion RA	1.69 mas/yr
Proper motion Dec	-23.51 mas/yr
Parallax	7.98 ± 0.13 mas
Spectral Type	A5V
Radial Velocity	43.00 km/s

Photometry

Band	Magnitude	Abs. Mag.
R	6.56	1.07
J	4.92	-0.56
H	4.69	-0.80
K	4.58	-0.91

Derivations

Heliocentric distance: 125.28 pc (409 light years) (1.7% margin of error)
Transverse velocity: 14.0 km/s
Space velocity relative to the Sun: 45.2 km/s
Galactic position (X, Y, Z): -115.8 pc, -41.6 pc, -23.9 pc
Galactic velocity (U, V, W): -34.4 km/s, -25.8 km/s, -14.0 km/s

Data: Extended Hipparcos Compilation (XHIP) and SIMBAD.