53 Persei

{{Starbox image

| image =

{{Location mark

|image=Perseus constellation map.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=53 Persei

|x=282|y=500

}}

| caption = Location of 53 Persei (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Perseus

| ra = {{RA|04|21|33.16651}}

| dec = {{DEC|46|29|55.9591}}

| appmag_v = 4.80

}}

{{Starbox character

| type =

| class = B4IV

| b-v = −0.03

| u-b = −0.52

| variable = SPB

}}

{{Starbox astrometry

| radial_v = +7.30

| prop_mo_ra = +21.482

| prop_mo_dec = −34.832

| parallax = 6.8517

| p_error = 0.2700

| parallax_footnote =

| absmag_v = −1.42

}}

{{Starbox detail

| mass = {{Val|5.9|0.1}}

| radius = {{Val|3.98|0.49}}

| temperature = 16,720

| luminosity = {{Val|779.8|213.3|167.5}}

| rotational_velocity = 15

| metal_fe =

| gravity = {{Val|3.93|0.09}}

| age_myr = {{Val|50.1|9.3}}

}}

{{Starbox catalog

| names = {{odlist | B=d Per | F=53 Per | V=V469 Per | BD=+46°872 | FK5=2319 | GC=5256 | HD=27396 | HIP=20354 | HR=1350 | SAO=39483 | NSV=1560 }}

}}

{{Starbox reference

| Simbad = 53+Per

}}

53 Persei is a single variable star in the northern constellation of Perseus. It has the Bayer designation d Persei, while 53 Persei is the Flamsteed designation. The star is visible to the naked eye as a faint, blue-white hued point of light with an apparent visual magnitude of 4.80. It is located approximately 480 light years away from the Sun, as determined from parallax, and is drifting further away with a radial velocity of +7.3 km/s.

File:V469PerLightCurve.png light curve for V469 Persei, plotted from data published by Huang et al. (1994)]]

This star has a stellar classification of B4IV, and was the prototype of a class of variable stars known as slowly pulsating B stars. It was one of the first mid-B type variable stars in the northern hemisphere to be studied. The star undergoes non-radial pulsations with a primary period of 2.36 days. Observation of the star with the BRITE satellite revealed eight separate frequencies in the star's light curve.

53 Persei is around 50 million years old with a projected rotational velocity of 15 km/s. It has six times the mass of the Sun and four times the Sun's radius. The star is radiating 780 times the luminosity of the Sun from its photosphere at an effective temperature of 16,720 K.

References

{{reflist|refs=

{{cite journal

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| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | s2cid=14878976 }}

{{cite conference

| title=Photometric and spectroscopic variability of 53 Per

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| last4=Kamiński | first4=K. | last5=Catanzaro | first5=G.

| last6=Stateva | first6=I. | last7=Napetova | first7=M.

| conference=Second BRITE-Constellation Science Conference: Small satellites—big science, held 22–26 August 2016 in Innsbruck, Austria

| editor1-first=Konnstanze | editor1-last=Zwintz

| editor2-first=Ennio | editor2-last=Poretti

| publisher=Polish Astronomical Society

| location=Warsaw, Poland

| pages=217–218 | date=September 2017 | volume=5

| bibcode=2017sbcs.conf..217N }}

{{cite journal |last1=Huang |first1=L. |last2=Guo |first2=Z. |last3=Hao |first3=J. |last4=Percy |first4=J. R. |last5=Fieldus |first5=M. S. |last6=Fried |first6=R. |last7=Pavlovski |first7=K. |last8=Bozic |first8=H. |last9=Ruzic |first9=Z. |last10=Paparo |first10=M. |last11=Vetoe |first11=B. |title=A Multisite UBV Photometric Campaign on 53 Persei in 1991 January |journal=The Astrophysical Journal |date=August 1994 |volume=431 |pages=850–869 |doi=10.1086/174536 |bibcode=1994ApJ...431..850H |doi-access=free }}

{{cite journal

| title=Spectral variations in 53 Per

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| bibcode=1989AcA....39..227L }}

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{{cite journal

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| s2cid=119257644 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=V/137D/XHIP&HIP=20354 Vizier catalog entry]

{{cite journal

| last1=Mermilliod | first1=J. C.

| title=VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)

| journal=VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie

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| doi=10.1134/S1063773706110065 | s2cid=119231169

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| journal=Monthly Notices of the Royal Astronomical Society

| volume=410 | pages=190–200 | year=2011

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| doi=10.1111/j.1365-2966.2010.17434.x

| doi-access=free | s2cid=118629873 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/MNRAS/410/190/table1&HIP=20354 Vizier catalog entry]

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{{cite journal

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}}

Category:B-type subgiants

Category:Slowly pulsating B-type stars

Category:Perseus (constellation)