26 Arietis

{{Starbox image

| image = 250px

| caption = A visual band light curve for 26 Arietis, adapted from Breger (1969)

}}

{{Starbox observe

| epoch = J2000

| ra = {{RA|02|30|38.41727}}

| dec = {{DEC|+19|51|19.0917}}

| appmag_v = 6.10 - 6.15

| constell = Aries

}}

{{Starbox character

| class = A9 V

| b-v = +0.248

| u-b = +0.102

| variable = Delta Scuti variable

}}

{{Starbox astrometry

| radial_v = +15.0

| prop_mo_ra = +79.814

| prop_mo_dec = −34.746

| parallax = 13.7810

| p_error = 0.0831

| parallax_footnote =

| absmag_v = 1.89

}}

{{Starbox detail

| mass = 1.74

| radius = {{Val|2.32|0.11|0.12}}

| luminosity = 15

| temperature = 7,430

| metal_fe =

| gravity = 3.84

| rotational_velocity = 186

| age_gyr = 1.075

}}

{{Starbox catalog

| names = {{odlist | V=UU Arietis | F=26 Ari | BD=+19°365 | FK5=2172 | HD=15550 | HIP=11678 | HR=729 | SAO=92979 }}

}}

{{Starbox reference

| Simbad=26+Ari

}}

26 Arietis is a variable star in the northern constellation of Aries. 26 Arietis is the Flamsteed designation; it also bears the variable star designation UU Arietis. The apparent visual magnitude of this star is 6.14, which, according to the Bortle Dark-Sky Scale, is within the naked eye visibility limit in dark rural skies. The annual parallax shift of {{Val|13.78|ul=mas}} is equivalent to a distance of approximately {{Convert|215|ly|pc|abbr=off|lk=on}} from Earth. The star is receding from the Earth with a heliocentric radial velocity of +15 km/s.

Michel Breger discovered that 36 Arietis is a variable star in 1969. It was given its variable star designation in 1970. It is a Delta Scuti variable with a variability period of 0.0676 days and an amplitude of 0.010 in magnitude. It is an A-type main sequence star with a stellar classification of A9 V. The star is around a billion years old with 1.74 times the mass of the Sun and 2.32 times the Sun's radius. The star is radiating 15 times the luminosity of the Sun from its photosphere at an effective temperature of 7,430 K.

References

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External links

[http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%20729 HR 729]
[http://aladin.u-strasbg.fr/AladinPreview?-c=02+30+38.4181%2B19+51+19.082&ident=V*+UU+Ari&submit=Aladin+previewer Image 26 Arietis]

Category:A-type main-sequence stars

Category:Delta Scuti variables

Category:Aries (constellation)

Category:Durchmusterung objects