HD 28246

Last updated
HD 28246
Observation data
Epoch J2000       Equinox J2000
Constellation Caelum
Right ascension 04h 25m 19.1197s [1]
Declination −44° 09 39.2224 [1]
Apparent magnitude  (V)6.38 ± 0.01 [2]
Characteristics
Spectral type F5.5 V [3]
B−V color index +0.44 [4]
Astrometry
Radial velocity (Rv)14.9 ± 0.3 [5]  km/s
Proper motion (μ)RA: +27.324 [1]   mas/yr
Dec.: +66.539 [1]   mas/yr
Parallax (π)26.8312 ± 0.018  mas [1]
Distance 121.56 ± 0.08  ly
(37.27 ± 0.03  pc)
Absolute magnitude  (MV)+3.55 [6]
Details
Mass 1.78 [7]   M
Luminosity 3.07 [8]   L
Surface gravity (log g)4.25 ± 0.14 [7]   cgs
Temperature 6,519 ± 222 [7]   K
Metallicity [Fe/H]+0.02 [9]   dex
Rotational velocity (v sin i)8 [9]  km/s
Age 1.58 [7]   Gyr
Other designations
1 G. Caeli, CD−44°1546, CPD−44°478, GC  5380, HD  28246, HIP  20630, HR  1404, SAO  216790
Database references
SIMBAD data

HD 28246 (HR 1404) is a solitary star located in the southern constellation Caelum. It has an apparent magnitude of 6.38, [2] placing it near the max visibility to the unaided eye. The star is located relatively close at a distance of about 122 [1] light years but is recceding with a heliocentric radial velocity of 14.9  km/s . [5]

HD 28246 has a stellar classification of F5.5 V, [3] indicating that it is an ordinary F-type main sequence star. At present it has 1.78 [7] times the mass of the Sun and shines at 3.07 solar luminosities [8] from its photosphere at an effective temperature of 6,519 K, [7] giving it a yellow-white glow. HD 28246 has an iron abundance 105% [9] that of the Sun, placing it at solar metallicity. At an age of 1.58 billion years, [7] it spins leisurely with a projected rotational velocity of 8 km/s. [9]

Related Research Articles

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Nu Telescopii, Latinized from ν Telescopii, is a slightly evolved star in the southern constellation Telescopium. It has an apparent visual magnitude of 5.33, allowing it to be faintly visible to the naked eye. The object is relatively close at a distance of 169 light years but is approaching the Solar System with a heliocentric radial velocity of about −12 km/s.

Mu Telescopii, Latinized from μ Telescopii is a solitary star in the southern constellation Telescopium. It has an apparent visual magnitude of 6.28, placing it near the limit of naked eye visibility. The object is relatively close at a distance of 118 light years but is receding with a heliocentric radial velocity of 8.6 km/s.

<span class="mw-page-title-main">Nu Caeli</span> Yellow-white hued star in the constellation Caelum

Nu Caeli is a yellow-white hued star in the constellation Caelum. It has an apparent visual magnitude of 6.07, which indicates it is near the lower limit on brightness that is visible to the naked eye. According to the Bortle scale, the star can be viewed from dark suburban skies. Based upon an annual parallax shift of 20.3 mas as seen from Earth, this star is located 161 light years from the Sun.

N Centauri is a binary star in the southern constellation of Centaurus. The brighter star is dimly visible to the naked eye with an apparent visual magnitude of 5.26, and it is approximately 304 light years away based on parallax. It has an absolute magnitude of +0.76 and is drifting further away from the Sun with a radial velocity of +27 km/s. It is a candidate member of the Sco OB2 moving group.

HD 6114 is a visual binary star system in the northern constellation of Andromeda. With a combined apparent magnitude of 6.46, the star can only be seen with the naked eye by keen-eyed observers even on the best of nights. Based upon an annual parallax shift of 10.4 mas as seen from Earth's orbit, the system is located approximately 108 parsecs (350 ly) distant.

HD 165259, also known as HR 6751 is a triple star system located in the southern circumpolar constellation of Apus. It has an apparent magnitude of 5.86, making it faintly visible to the naked eye Parallax measurements place the system at a distance of 138 light years, and it is currently receding with a heliocentric radial velocity of 13.1 km/s.

HD 30442 is a solitary star in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye with an apparent magnitude of 5.47 and is estimated to be 403 light years away from the Solar System. The object has a heliocentric radial velocity of −37 km/s, indicating that it is drifting closer.

HD 173791 is a solitary yellow hued star located in the southern constellation Telescopium. It has an apparent magnitude of 5.80, allowing it to be viewed with the naked eye under suitable viewing conditions. Parallax measurements place the object at a distance of 364 light years, and it is currently receding from the Solar System with a heliocentric radial velocity of 9.7 km/s.

HD 166066 is a solitary star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 8.10, making it readily visible in binoculars, but not to the naked eye. The object is located 223 light years away from the Solar System, but is drifting away with a poorly constrained radial velocity of about 2.93 km/s.

HD 167257 is a solitary star in the southern constellation Telescopium. It has an apparent magnitude of 6.05, making it faintly visible to the naked eye. Parallax measurements place the star at a distance of 420 light years and has a radial velocity of −5.1 km/s, which is poorly constrained. This indicates that it is drifting towards the Solar System.

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HD 60150 is a solitary star located in the southern circumpolar constellation Volans. It has an apparent magnitude of 6.39, placing it near the limit for naked eye visibility. Parallax measurements place the star at a distance of 738 light years and it is currently receding with a heliocentric radial velocity of 13.4 km/s.

<span class="mw-page-title-main">Kappa Mensae</span> Star in the constellation of Mensa

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<span class="mw-page-title-main">Phi Octantis</span> Star in the constellation Octans

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HD 35184 is a solitary star in the southern circumpolar constellation Mensa. It has an apparent magnitude of 6.50, which the maximum naked eye visibility. Located 375 light years away, it is receding with a heliocentric radial velocity of 13.6 km/s.

16 Delphini is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 5.54, making it faintly visible to the naked eye. The star is relatively close at a distance of 198 light years but is receding with a poorly constrained radial velocity of 2 km/s.

<span class="mw-page-title-main">HD 199223</span> Double star in the constellation Delphinus.

HD 199223 is a double star in the equatorial constellation Delphinus. However, the system was originally in Equuleus prior to the creation of official IAU constellation borders. The components have a separation of 2″ at a position angle of 282° as of 2016. They have apparent magnitudes of 6.34 and 7.49 and distances of 354 and 359 light years respectively. The system is drifting closer with a radial velocity of −33 km/s.

HD 193721 is an astrometric binary in the southern circumpolar constellation Octans. It has an apparent magnitude of 5.77, allowing it to be faintly seen with the naked eye. Parallax measurements place the system 760 light years away from the Solar System and it is currently receding with a heliocentric radial velocity 8.6 km/s.

HD 182509, also designated as HR 7370, is an orange hued star located in the southern constellation Telescopium. It has an apparent magnitude of 5.69, making it faintly visible to the naked eye if viewed under ideal conditions. Parallax measurements place the object at a distance of 635 light years. It has a poorly constrained heliocentric radial velocity of −5 km/s, indicating that it is drifting towards the Solar System.

References

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