15 Delphini

{{Starbox begin

| name = 15 Delphini

}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Delphinus

| ra = {{RA|20|49|37.7673}}

| dec = {{DEC|+12|32|42.4589}}

| appmag_v = 5.99{{±|0.01}}

}}

{{Starbox character

| class = F5 V

| u-b = −0.06

| b-v = +0.42

}}

{{Starbox astrometry

| radial_v = 4.1{{±|0.4}}

| parallax = 33.0028

| p_error = 0.0322

| parallax_footnote =

| prop_mo_ra = +52.776

| prop_mo_dec = +97.020

| pm_footnote =

| absmag_v = +3.58

}}

{{Starbox detail

| source =

| mass = 1.23

| radius = 1.42{{±|0.02|0.04}}

| luminosity = 3.01{{±|0.01}}

| gravity = 4.24

| temperature = 6,624{{±|50}}

| metal_fe = −0.13{{±|0.03}}

| rotational_velocity = 5.6{{±|0.3}}

| age_gyr = 1.21{{±|0.63}}

}}

{{Starbox catalog

| names = {{odlist|F = 15 Del|AG = +12°2395|BD = +12°4472|GC = 29037|HD = 198390|HIP = 102805|HR = 7973|SAO = 106536|WDS = J20496+1233A}}

}}

{{Starbox reference

| Simbad = 15+Del

}}

15 Delphini (15 Del) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 5.99, allowing it to be faintly seen with the naked eye. The star is relatively close at a distance of 99 light years but is receding with a heliocentric radial velocity of {{val|4.1|ul=km/s}}.

15 Del has a stellar classification of F5 V, indicating that it is an ordinary F-type main-sequence star. It has 123% the mass of the Sun and a diameter of {{val|1.42|ul=solar radius}}. It radiates at 3 times the luminosity of the Sun from its photosphere at an effective temperature of {{val|6624|ul=K|fmt=commas}}, giving a yellow-white hue. 15 Del has an iron abundance 74% that of the Sun and at an age of 1.21 billion years — spins leisurely with a projected rotational velocity of {{val|5.6|ul=km/s}}.

15 Delphini has 3 companions listed below. Components B and D have different proper motions compared to the host. However, C appears to have a common proper motion, suggesting physical relation, but its parallax indicates a further distance compared to 15 Delphini.

class="wikitable"

|+15 Delphini's companions

!Companion

!m_v

!PA (°)

!Year

!Sep. (″)

|14.10

|19

|2013

|52.1

|11.07

|86

|2020

|105.5

|11.89

|276

|2020

|189.6

References

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}}

Category:Delphinus

Category:F-type main-sequence stars

Category:Double stars