HD 15672 (HIP 11786)

HD 15672 is a yellow-white star in the constellation Triangulum. At 246 light years away, it shines at an apparent visual magnitude of 7.71. It is moving through the Galaxy at a speed of 36.5 km/s relative to the Sun.

Sky position: RA 2h 32.1m, Dec +34° 40.7'

Common designations: HD 15672, HIP 11786, Gaia DR3 327101071429357568

HD 15672 has the spectral type F5. F-type stars are yellow-white stars of about 6,000 to 7,500 K, slightly hotter and more massive than the Sun. Their hydrogen lines are weaker than in A stars and metal lines become prominent.

How to find HD 15672 in the sky

HD 15672 lies in Triangulum. With a declination of +34° 40.7', it is visible from the entire Northern Hemisphere and from the Southern Hemisphere down to about latitude 55° S. Observers poleward of latitude 55° N see it as circumpolar: it never sets. It is just beyond naked-eye visibility; binoculars will show it easily. It is highest in the sky at local midnight around November, which makes the weeks around that month the best time to observe it.

Tabulated data for HD 15672

Astrometry and spectroscopy

Right Ascension (J2000)	38.02836200° (2h 32.1m)
Declination (J2000)	34.67816252° (+34° 40.7')
Galactic Longitude	145.39820717°
Galactic Latitude	-23.76366389°
Proper motion RA	78.81 mas/yr
Proper motion Dec	-31.92 mas/yr
Parallax	13.27 ± 0.03 mas
Spectral Type	F5
Radial Velocity	20.19 km/s

Photometry

Band	Magnitude	Abs. Mag.
B	8.14	3.75
V	7.71	3.32
J	6.89	2.50
H	6.73	2.34
K	6.66	2.27

Colour index B-V: +0.43

Derivations

Heliocentric distance: 75.37 pc (246 light years) (0.2% margin of error)
Absolute visual magnitude: 3.32
Transverse velocity: 30.4 km/s
Space velocity relative to the Sun: 36.5 km/s
Galactic position (X, Y, Z): -56.8 pc, 39.2 pc, -30.4 pc
Galactic velocity (U, V, W): -32.9 km/s, -14.2 km/s, -7.0 km/s

Data: Extended Hipparcos Compilation (XHIP) and SIMBAD.