Delta2 Tauri

{{other stars by Bayer designation|Delta Tauri{{!}}δ Tauri}}

{{Starbox begin

| name = Delta² Tauri

}}

{{Starbox image

| image = 280px

| caption=Location of δ² Tauri in the Hyades, indicated by its Flamsteed designation 64

}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Taurus

| ra = {{RA|04|24|05.75985}}

| dec = {{DEC|+17|26|38.8583}}

| appmag_v = +4.80

}}

{{Starbox character

| type = main sequence

| class = A2 Vs

| b-v = +0.15

| u-b = +0.12

| variable =

}}

{{Starbox astrometry

| radial_v = +37.1

| prop_mo_ra = +108.16

| prop_mo_dec = −34.66

| parallax = 20.21

| p_error = 0.40

| parallax_footnote =

| absmag_v = +1.62

}}

{{Starbox detail

| source =

| mass = 1.79

| radius = 1.8

| luminosity = 27

| temperature = 7,997

| gravity = 4.15

| metal_fe = +0.14

| rotational_velocity = 42

| age_myr = 449

}}

{{Starbox catalog

| names = {{odlist | B=δ² Tau | F=64 Tauri | BD=+17°714 | FK5= | HD=27819 | HIP=20542 | HR=1380 | SAO=93907 }}

}}

{{Starbox reference

| Simbad = del02+Tau

}}

Delta² Tauri (δ² Tauri) is a solitary, white-hued star in the zodiac constellation of Taurus. Based upon an annual parallax shift of 20.21 mas as seen from Earth, it is located roughly 161 light years distant from the Sun. It is separated from δ¹ Tauri by 0.3° on the sky and is faintly visible to the naked eye with an apparent visual magnitude of +4.80. The star is considered a member of the Hyades cluster.

At the estimated age of 449 million years, this is an A-type main-sequence star with a stellar classification of A2 Vs, where the 's' suffix indicates narrow (sharp) absorption lines. It has 1.8 times the mass of the Sun and about 1.8 times the Sun's radius. The star is radiating 27 times the Sun's luminosity from its photosphere at an effective temperature of 7,997 K.

δ² Tauri is a source of X-ray emission with a luminosity of {{Val|101.1e20|ul=W}}. Since A-type stars are not normally a source of X-rays, this emission may be coming from an unknown companion or from a line of sight source.

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