Psi Eridani

{{Starbox begin

| name = ψ Eridani}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Eridanus

| ra = {{RA|05|01|26.34578}}

| dec = {{DEC|−07|10|26.2732}}

| appmag_v = 4.81

}}

{{Starbox character

| type = Main sequence

| class = B3 V or B3 IV

| u-b = −0.75

| b-v = −0.19

| r-i =

}}

{{Starbox astrometry

| radial_v = {{Val|20.7|1.1}}

| prop_mo_ra = +1.315

| prop_mo_dec = +7.002

| pm_footnote =

| parallax = 3.5964

| p_error = 0.1432

| parallax_footnote =

| absmag_v= −1.97

}}

{{Starbox detail

| source =

| mass = {{Val|6.875|0.130|0.122}}

| radius = {{Val|6.63|0.22|0.27}}

| luminosity = {{Val|3329|171|232|fmt=commas}}

| temperature = {{Val|17025|51|52|fmt=commas}}

| gravity = {{Val|3.55|0.02}}

| metal_fe =

| rotational_velocity = {{Val|52|8}}

| rotation =

| age_myr = {{Val|31.6|0.6}}

}}

{{Starbox catalog

| names = ψ Eri, BD−07°948, 65 Eridani, HD 32249, HIP 23364, HR 1617, SAO 131700

}}

{{Starbox reference

| Simbad=psi+Eri

}}

Psi Eridani is a star in the constellation Eridanus. Its name is a Bayer designation that is Latinized from ψ Eridani, and abbreviated Psi Eri or ψ Eri. With an apparent visual magnitude is 4.81, it can be seen with the naked eye on a clear, dark night. Based upon an annual parallax shift of 4.41 milliarcseconds, it is located roughly 740 light-years distant.

This is a B-type main-sequence star with a stellar classification of B3 V. The main sequence class is further supported by stellar evolution models. It is about 32 million years old and has a projected rotational velocity of 52 km/s. The star has 6.9 times the mass of the Sun and 6.63 times the Sun's radius. Psi Eridani shines with 3,329 times the solar luminosity from its outer atmosphere at an effective temperature of 17,025 K.

References

{{reflist|refs=

{{citation

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| last1=van Leeuwen | first1=F.

| journal=Astronomy and Astrophysics

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| arxiv=0708.1752 | bibcode=2007A&A...474..653V

| doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}

{{citation

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| bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015

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{{citation

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| title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun

| journal=Monthly Notices of the Royal Astronomical Society

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

| doi-access=free | bibcode=2011MNRAS.410..190T

| arxiv=1007.4883

| s2cid=118629873 }}

{{citation

| last1=Gontcharov | first1=G. A.

| title=Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system

| journal=Astronomy Letters

| volume=32 | issue=11 | pages=759–771 | date=November 2006

| doi=10.1134/S1063773706110065| bibcode=2006AstL...32..759G

| postscript=. |arxiv = 1606.08053 | s2cid=119231169

}}

{{citation

| display-authors=1

| title=Projected Rotational Velocities and Stellar Characterization of 350 B Stars in the Nearby Galactic Disk

| last1=Bragança | first1=G. A. | last2=Daflon | first2=S.

| last3=Cunha | first3=K. | last4=Bensby | first4=T.

| last5=Oey | first5=M. S. | last6=Walth | first6=G.

| journal=The Astronomical Journal | date=November 2012

| volume=144 | issue=5 | id=130 | pages=10

| doi=10.1088/0004-6256/144/5/130 | bibcode=2012AJ....144..130B

| postscript=. |arxiv = 1208.1674 | s2cid=118868235

}}

{{citation

| display-authors=1

| last1=Johnson | first1=H. L. | last2=Iriarte | first2=B.

| last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z.

| title=UBVRIJKL photometry of the bright stars

| journal=Communications of the Lunar and Planetary Laboratory

| volume=4 | issue=99 | year=1966

| page=99 | bibcode=1966CoLPL...4...99J | postscript=. }}

{{citation

| last1=Houk | first1=N. | last2=Swift | first2=C.

| title=Michigan catalogue of two-dimensional spectral types for the HD Stars

| journal=Michigan Spectral Survey

| volume=05 | year=1999

| bibcode=1999MSS...C05....0H | postscript=. }}

{{cite simbad

| title=psi Eri

| access-date=2016-11-03 }}

}}

Category:B-type main-sequence stars

Category:Eridanus (constellation)

Category:Durchmusterung objects