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Stars in Taurus

HD 38263, a white star in Taurus

HD 38263 is a white star in the constellation Taurus. At 453 light years away, it shines at an apparent visual magnitude of 6.46.

Ashland Astronomy Studio Star

HD 38263 (HIP 27116)

HD 38263 is a white star in the constellation Taurus. At 453 light years away, it shines at an apparent visual magnitude of 6.46. It is moving through the Galaxy at a speed of 15.5 km/s relative to the Sun.

Sky position: RA 5h 45.0m, Dec +12° 53.3'

Common designations: HD 38263, HIP 27116, Gaia DR3 3346475175145280128

HD 38263 has the spectral type A3. 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.

How to find HD 38263 in the sky

HD 38263 lies in Taurus. With a declination of +12° 53.3', it is visible from the entire Northern Hemisphere and from the Southern Hemisphere down to about latitude 77° S. It is just beyond naked-eye visibility; binoculars will show it easily. 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 HD 38263

Astrometry and spectroscopy

Right Ascension (J2000)86.25536924° (5h 45.0m)
Declination (J2000)12.88833269° (+12° 53.3')
Galactic Longitude193.71975462°
Galactic Latitude-8.40708077°
Proper motion RA-19.56 mas/yr
Proper motion Dec-12.85 mas/yr
Parallax7.20 ± 0.03 mas
Spectral TypeA3
Radial Velocity-1.72 km/s

Photometry

BandMagnitudeAbs. Mag.
B6.680.97
V6.460.75
J6.010.30
H5.980.26

Colour index B-V: +0.22

Derivations

  • Heliocentric distance: 138.93 pc (453 light years) (0.4% margin of error)
  • Absolute visual magnitude: 0.75
  • Transverse velocity: 15.4 km/s
  • Space velocity relative to the Sun: 15.5 km/s
  • Galactic position (X, Y, Z): -133.5 pc, -32.6 pc, -20.3 pc
  • Galactic velocity (U, V, W): 4.0 km/s, 0.2 km/s, -15.0 km/s

Data: Extended Hipparcos Compilation (XHIP) and SIMBAD.

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