- References
| name = Delta Leporis
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Lepus
| ra = {{RA|05|51|19.29613}}
| dec = {{DEC|−20|52|44.7232}}
| appmag_v = 3.85[3]
}}{{Starbox character
| class = {{nowrap|K1 IV Fe−0.5}}[4] or {{nowrap|K0 IIIb Fe−1.5 CH0.5}}[5]
| b-v = +0.98[3]
| u-b = +0.71[3]
| variable =
}}{{Starbox astrometry
| radial_v = +100.20[8]
| prop_mo_ra = +229.49
| prop_mo_dec = −648.41
| parallax = 28.68
| p_error = 0.17
| parallax_footnote =
| absmag_v = +1.04[12]
}}{{Starbox detail
| source =
| mass = 0.94[12]
| radius = 10[14]
| luminosity = 45.7[12]
| temperature = {{Val|4660|84|fmt=commas}}[16]
| gravity = {{Val|2.46|0.23}}[16]
| metal_fe = {{Val|−0.74|0.09}}[16]
| rotational_velocity = 0[19]
| age_gyr = 10.7[12]
}}{{Starbox catalog
| names = {{odlist | B= Lep | F=15 Lep | BD=−20° 1211 | FK5=222 | HD=39364 | HIP=27654 | HR=2035 | SAO=170926 | GC=7362 | LHS=1792 }}[21]
}}{{Starbox reference
| Simbad = del+Lep
}}{{Starbox end}}
Delta Leporis (δ Leporis) is a solitary,[22] orange-hued star in the southern constellation of Lepus. It is visible to the naked eye with an apparent visual magnitude of 3.85.[3] Based upon an annual parallax shift of 28.68 mas, it is 114 light years distant from Earth.
This is an old, evolved K-type star with an age of about 10.7 billion years.[12] Keenan and McNeil (1989) classified it as {{nowrap|K0 IIIb Fe−1.5 CH0.5}},[5] indicating it is a giant star showing a deficiency of iron and an excess of cyanogen in its atmosphere. However, Gray et al. (2006) listed it as {{nowrap|K1 IV Fe−0.5}},[4] which would suggest a less evolved subgiant star. It may be a red clump star, which indicates it is generating energy through helium fusion at its core.[28]
The measured angular diameter of this star, after correction for limb darkening, is {{Val|2.63|0.04|u=mas}}.[29] At the estimated distance of this star, this yields a physical size of about 10 times the radius of the Sun.[14] It has only 94%[12] of the Sun's mass and is radiating 46[12] times the Sun's luminosity from its photosphere at an effective temperature of 4,660 K.[16]
References
1. ^1 {{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | postscript=. | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 }}
2. ^1 {{citation | last1=Alves | first1=David R. | title=K-Band Calibration of the Red Clump Luminosity | journal=The Astrophysical Journal | volume=539 | issue=2 | pages=732–741 | date=August 2000 | doi=10.1086/309278 | bibcode=2000ApJ...539..732A | arxiv=astro-ph/0003329 | postscript=. }}
3. ^1 {{citation | last1=Uesugi | first1=Akira | last2=Fukuda | first2=Ichiro | title=Catalogue of rotational velocities of the stars | journal=Contributions from the Institute of Astrophysics and Kwasan Observatory | date=1970 | publisher=University of Kyoto | bibcode=1970crvs.book.....U | postscript=. }}
4. ^1 {{citation | display-authors=1 | last1=Richichi | first1=A. | last2=Percheron | first2=I. | last3=Khristoforova | first3=M. | title=CHARM2: An updated Catalog of High Angular Resolution Measurements | journal=Astronomy and Astrophysics | postscript=. | volume=431 | issue=2 | pages=773–777 | date=February 2005 | doi=10.1051/0004-6361:20042039 | bibcode=2005A&A...431..773R }}
5. ^1 2 {{citation | first1=Kenneth R. | last1=Lang | title=Astrophysical formulae | volume=1 | series=Astronomy and astrophysics library | edition=3rd | publisher=Birkhäuser | date=2006 | isbn=3-540-29692-1 | postscript=. | url=https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41}} The radius (R*) is given by::
6. ^1 2 3 4 5 6 7 {{citation | display-authors=1 | last1=Takeda | first1=Yoichi | last2=Sato | first2=Bun'ei | last3=Murata | first3=Daisuke | title=Stellar Parameters and Elemental Abundances of Late-G Giants | journal=Publications of the Astronomical Society of Japan | date=August 2008 | volume=60 | issue=4 | pages=781–802 | bibcode=2008PASJ...60..781T | arxiv=0805.2434 | doi=10.1093/pasj/60.4.781 | postscript=. }}
7. ^1 2 3 4 {{citation | title=New atmospheric parameters and spectral interpolator for the MILES cool stars | display-authors=1 | last1=Sharma | first1=Kaushal | last2=Prugniel | first2=Philippe | last3=Singh | first3=Harinder P. | journal =Astronomy & Astrophysics | volume = 585 | id=A64 |pages= 27| year= 2016 | doi=10.1051/0004-6361/201526111 | bibcode=2016A&A...585A..64S | arxiv=1512.04882 | postscript=. }}
8. ^1 2 {{citation | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | title=The Perkins catalog of revised MK types for the cooler stars | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}
9. ^1 {{citation | last1=Gontcharov | first1=G. A. | title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system | journal=Astronomy Letters | postscript=. | volume=32 | issue=11 | pages=759–771 | date=November 2006 | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G |arxiv = 1606.08053}}
10. ^1 2 {{citation | display-authors=1 | last1=Gray | first1=R. O. | last2=Corbally | first2=C. J. | last3=Garrison | first3=R. F. | last4=McFadden | first4=M. T. | last5=Bubar | first5=E. J. | last6=McGahee | first6=C. E. | last7=O'Donoghue | first7=A. A. | last8=Knox | first8=E. R. | title=Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample | journal=The Astronomical Journal | volume=132 | issue=1 | pages=161–170 | date=July 2006 | doi=10.1086/504637 | bibcode=2006AJ....132..161G | arxiv=astro-ph/0603770 | postscript=. }}
11. ^1 2 3 4 {{citation | title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system | journal=CDS/ADC Collection of Electronic Catalogues | author1=Ducati | first1=J. R. | volume=2237 | date=2002 | postscript=. | bibcode=2002yCat.2237....0D }}
12. ^1 {{cite simbad | title=del Lep | accessdate=2017-08-18 | postscript=. }}
[1][2][3][4][5][6][7][8][9][10][11][12]2. ^1 {{citation | last1=Alves | first1=David R. | title=K-Band Calibration of the Red Clump Luminosity | journal=The Astrophysical Journal | volume=539 | issue=2 | pages=732–741 | date=August 2000 | doi=10.1086/309278 | bibcode=2000ApJ...539..732A | arxiv=astro-ph/0003329 | postscript=. }}
3. ^1 {{citation | last1=Uesugi | first1=Akira | last2=Fukuda | first2=Ichiro | title=Catalogue of rotational velocities of the stars | journal=Contributions from the Institute of Astrophysics and Kwasan Observatory | date=1970 | publisher=University of Kyoto | bibcode=1970crvs.book.....U | postscript=. }}
4. ^1 {{citation | display-authors=1 | last1=Richichi | first1=A. | last2=Percheron | first2=I. | last3=Khristoforova | first3=M. | title=CHARM2: An updated Catalog of High Angular Resolution Measurements | journal=Astronomy and Astrophysics | postscript=. | volume=431 | issue=2 | pages=773–777 | date=February 2005 | doi=10.1051/0004-6361:20042039 | bibcode=2005A&A...431..773R }}
5. ^1 2 {{citation | first1=Kenneth R. | last1=Lang | title=Astrophysical formulae | volume=1 | series=Astronomy and astrophysics library | edition=3rd | publisher=Birkhäuser | date=2006 | isbn=3-540-29692-1 | postscript=. | url=https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41}} The radius (R*) is given by::
6. ^1 2 3 4 5 6 7 {{citation | display-authors=1 | last1=Takeda | first1=Yoichi | last2=Sato | first2=Bun'ei | last3=Murata | first3=Daisuke | title=Stellar Parameters and Elemental Abundances of Late-G Giants | journal=Publications of the Astronomical Society of Japan | date=August 2008 | volume=60 | issue=4 | pages=781–802 | bibcode=2008PASJ...60..781T | arxiv=0805.2434 | doi=10.1093/pasj/60.4.781 | postscript=. }}
7. ^1 2 3 4 {{citation | title=New atmospheric parameters and spectral interpolator for the MILES cool stars | display-authors=1 | last1=Sharma | first1=Kaushal | last2=Prugniel | first2=Philippe | last3=Singh | first3=Harinder P. | journal =Astronomy & Astrophysics | volume = 585 | id=A64 |pages= 27| year= 2016 | doi=10.1051/0004-6361/201526111 | bibcode=2016A&A...585A..64S | arxiv=1512.04882 | postscript=. }}
8. ^1 2 {{citation | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | title=The Perkins catalog of revised MK types for the cooler stars | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}
9. ^1 {{citation | last1=Gontcharov | first1=G. A. | title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system | journal=Astronomy Letters | postscript=. | volume=32 | issue=11 | pages=759–771 | date=November 2006 | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G |arxiv = 1606.08053}}
10. ^1 2 {{citation | display-authors=1 | last1=Gray | first1=R. O. | last2=Corbally | first2=C. J. | last3=Garrison | first3=R. F. | last4=McFadden | first4=M. T. | last5=Bubar | first5=E. J. | last6=McGahee | first6=C. E. | last7=O'Donoghue | first7=A. A. | last8=Knox | first8=E. R. | title=Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample | journal=The Astronomical Journal | volume=132 | issue=1 | pages=161–170 | date=July 2006 | doi=10.1086/504637 | bibcode=2006AJ....132..161G | arxiv=astro-ph/0603770 | postscript=. }}
11. ^1 2 3 4 {{citation | title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system | journal=CDS/ADC Collection of Electronic Catalogues | author1=Ducati | first1=J. R. | volume=2237 | date=2002 | postscript=. | bibcode=2002yCat.2237....0D }}
12. ^1 {{cite simbad | title=del Lep | accessdate=2017-08-18 | postscript=. }}
}}{{Stars of Lepus|state=collapsed}}
10 : K-type giants|K-type subgiants|Horizontal-branch stars|Lepus (constellation)|Bayer objects|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects
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