- References
{{Starbox begin
| name = 30 Persei
}}{{Starbox observe
| epoch = J2000
| constell = Perseus
| ra = {{RA|03|17|47.35287}}[1]
| dec = {{DEC|+44|01|30.0800}}[1]
| appmag_v = 5.49[3]
}}{{Starbox character
| class = B7 V[4]
| b-v = {{Val|−0.060|0.004}}[3]
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|+4.0|2.0}}[6]
| prop_mo_ra = +26.07[1]
| prop_mo_dec = −24.47[1]
| parallax = 4.46
| p_error = 0.39
| parallax_footnote = [1]
| absmag_v = −0.96[3]
}}{{Starbox orbit
| reference = [4]
| period_unitless = {{Val|36.5|0.1|u=d}}
| axis =
| axis_unitless =
| eccentricity = {{Val|0.3|0.2}}
| inclination =
| node =
| periastron = {{Val|24407531.7|0.1|fmt=commas}}
| periarg = {{Val|312|9}}
| periarg_primary =
| k1 = {{Val|20|3}}
| k2 =
}}{{Starbox detail
| source =
| component1 = 30 Per A
| mass = {{Val|4.24|0.12}}[12]
| radius =
| luminosity = {{Val|611|130|238}}[12]
| gravity =
| temperature = 9,908[14]
| metal_fe =
| rotational_velocity = 212[12]
| rotation =
| age_gyr =
}}{{Starbox catalog
| names = {{odlist | F=30 Per | BD=+43° 674 | HD=20315 | HIP=15338 | HR=982 | SAO=38704 }}
}}{{Starbox reference
| Simbad = 30+Per
}}{{Starbox end}}30 Persei is a binary star[4] system in the northern constellation Perseus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.49.[3] Based upon an annual parallax shift of {{Val|4.46|0.39|ul=mas}},[1] is located roughly 730 light years from the Sun. It is a member of the Perseus OB3 association, which includes the Alpha Persei Cluster.[20]This is a single-lined spectroscopic binary star system with an orbital period of 36.5 days and an eccentricity of roughly 0.3. The visible component is a B-type main-sequence star with a stellar classification of B7 V.[4] It is spinning rapidly with a projected rotational velocity of 212 km/s.[12] The star has 4.2[12] times the mass of the Sun and is radiating around 611[12] times the Sun's luminosity from its photosphere at an effective temperature of 9,908 K.[14] References1. ^1 2 3 4 5 6 {{citation | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=F. | postscript=. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}
2. ^1 2 {{citation | display-authors=1 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental parameters and infrared excesses of Hipparcos stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | pages=343 | year=2012 | doi=10.1111/j.1365-2966.2012.21873.x | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | postscript=. }}
3. ^1 2 3 4 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
4. ^1 {{citation | title=OB association members in the ACT and TRC catalogues | last1=Hoogerwerf | first1=Ronnie | journal=Monthly Notices of the Royal Astronomical Society | volume=313 | issue=1 | pages=43−65 | date=March 2000 | doi=10.1046/j.1365-8711.2000.03192.x | bibcode=2000MNRAS.313...43H }}
5. ^1 {{citation | last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C. | title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project | journal=Astronomy & Astrophysics | volume=546 | id=A61 | pages=14 | date=October 2012 | doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D | arxiv=1208.3048 | postscript=. }}
6. ^1 2 3 4 5 6 {{citation | title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities | journal=Astronomy & Astrophysics | last1=Zorec | first1=J. | last2=Royer | first2=F. | volume=537 | pages=A120 | year=2012 | doi=10.1051/0004-6361/201117691 | bibcode=2012A&A...537A.120Z | arxiv=1201.2052 | postscript=. }}
7. ^1 2 3 4 {{citation | last1=Morrell | first1=Nidia | last2=Abt | first2=Helmut A. | title=Spectroscopic binaries in the Alpha Persei cluster | journal=Astrophysical Journal, Part 1 | postscript=. | volume=393 | issue=2 | date=July 10, 1992 | pages=666–673 | doi=10.1086/171534 | bibcode=1992ApJ...393..666M }}
}}{{Stars of Perseus}} 9 : B-type main-sequence stars|Spectroscopic binaries|Alpha Persei Cluster|Perseus (constellation)|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |