10 Trianguli

{{Starbox begin

| name = 10 Trianguli

}}

{{Starbox image

| image=

{{Location mark

|image=Triangulum IAU.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=10 Trianguli

|x=399|y=507

}}

|caption=Location of 10 Trianguli (circled)

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Triangulum

| ra = {{RA|02|18|56.99355}}

| dec = {{DEC|+28|38|33.6322}}

| appmag_v = 5.29{{±|0.01}}

}}

{{Starbox character

| type = main sequence star

| class = A2 V

| u-b = +0.02

| b-v = +0.04

}}

{{Starbox astrometry

| radial_v = 0.4{{±|0.1}}

| parallax = 8.9971

| p_error = 0.0729

| parallax_footnote =

| prop_mo_ra = +7.073

| prop_mo_dec = +0.836

| pm_footnote =

| absmag_v = −0.02

}}

{{Starbox detail

| mass = 2.83{{±|0.05}}

| radius = 3.71{{±|0.19}}

| luminosity = 108{{±|10|9}}

| temperature = 9,023

| gravity = 3.73

| metal_fe = +0.33

| rotational_velocity = 22{{±|2}}

| age_myr = 372{{±|44}}

}}

{{Starbox catalog

| names = 1 H. Trianguli Minus, {{odlist|F = 10 Tri|AG = +28° 262|BD = +27°360|GC = 2781|HD = 14252|HIP = 10793|HR = 675|SAO = 75276}}

}}

{{Starbox reference

| Simbad = 10+Tri

}}

10 Trianguli (HD 14252; HR 675; 1 H. Trianguli Minus), or simply 10 Tri is a solitary star located in the northern constellation Triangulum. It is faintly visible to the naked eye as a white-hued point of light with an apparent magnitude of 5.29. Gaia DR3 parallax measurements imply a distance of 363 light-years and it is slowly receding with a heliocentric radial velocity of {{val|0.4|ul=km/s}}. At its current distance, 10 Tri's brightness is diminished by an interstellar extinction of 0.11 magnitudes and it has an absolute magnitude of −0.02.

10 Trianguli has a stellar classification of A2 V, indicating that it is an ordinary A-type main-sequence star that is generating energy via hydrogen fusion at its core. It has 2.83 times the mass of the Sun and a slightly enlarged radius 3.71 times that of the Sun. It radiates 108 times the luminosity of the Sun from its photosphere at an effective temperature of {{val|9023|ul=K|fmt=commas}}. 10 Trianguli is rather evolved for its class, having completed 92.5% of its main sequence lifetime at the age of 372 million years. It is metal enriched with an iron abundance of [Fe/H] = +0.33 or % of the Sun's and unlike most hot stars, it spins modestly with a projected rotational velocity of {{val|22|ul=km/s}}.

10 Trianguli has a 13th magnitude companion located 58.3" away along a position angle of 205°. It is an unrelated background star that is much more distant than 10 Trianguli. Together with ι Trianguli and 12 Trianguli, it forms part of the obsolete Triangulum Minus.

References

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Category:A-type main-sequence stars

Category:Durchmusterung objects