HD 46588

{{Starbox begin

| name = HD 46588

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Camelopardalis

| ra = {{RA|06|46|14.1500}}

| dec = {{DEC|+79|33|53.3185}}

| appmag_v = +5.44

}}

{{Starbox character

| class = F7 V

| b-v = +0.53

| u-b = −0.02

}}

{{Starbox astrometry

| radial_v = 15.2{{±|0.2}}

| parallax = 54.9380

| p_error = 0.0595

| parallax_footnote =

| prop_mo_ra = −99.163

| prop_mo_dec = −604.042

| pm_footnote =

| absmag_v = +4.18

}}

{{Starbox detail

| source =

| mass = 1.13{{±|0.03|0.02}}

| radius = 1.19

| luminosity = 1.82

| temperature = 6,273{{±|91}}

| metal_fe = −0.12{{±|0.06}}

| gravity = 4.40{{±|0.02}}

| rotational_velocity = 6.63

| age_gyr = 1.27{{±|1.65|0.22}}

}}

{{Starbox catalog

| names = 23 H. Camelopardalis, {{odlist|GJ = 240.1|AG = +79°200|BD = +79°212|GC = 8711|HD = 46588|HR = 2401|HIP = 32439|SAO = 5946|WDS = J06462+7934A}}

}}

{{Starbox reference

| Simbad = HR+2401

}}

HD 46588 (HR 2401; Gliese 240.1) is a star in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.44, allowing it to be faintly seen with the naked eye. The object is relatively close at a distance of only 59 light years but is receding with a heliocentric radial velocity of {{val|15|ul=km/s}}.

HD 46588 is an ordinary F-type main-sequence star with a spectral classification of F7 V. It has 113% the mass of the Sun and 119% its radius. It shines at 182% the luminosity of the Sun from its photosphere at an effective temperature of 6,273 K, giving it a yellow white glow. Isochronic measurements place HD 46588's age at 1.27 billion years, but it's poorly constrained. The star's metallicity is 76% that of the Sun and spins modestly with a projected rotational velocity of {{val|6.63|ul=km/s}}.

Due to the star's close proximity to Earth and similarity to the Sun, it has been well studied by astronomers. No planets have been found, but a brown dwarf companion was discovered in a WISE survey in 2011. It has a mass of {{val|67.04|8.38|19.90|ul=Jupiter masses}} and a temperature of 1360{{±|50|80}} K. An infrared excess has been discovered around HD 46588, indicating a cold debris disk with a temperature of 60 K.

{{OrbitboxPlanet begin

| period_unit = year

| table_ref =

}}

{{OrbitboxPlanet disk

| disk = dust disk

| mass_earth = 1.40 × 10⁻⁵

| apoapsis = 26.34

}}

References

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}}

Category:Camelopardalis

Category:F-type main-sequence stars

046588

032439

2401

Category:Brown dwarfs

Category:Circumstellar disks

BD+79 212

0240.1