}}{{Starbox detail
| mass = 1.09[11]
| radius = {{val|0.993|0.014}}[11]
| age = 80–200 myr[13]
| luminosity = 1.1[14]
| temperature = {{val|5850}}[11]
| rotation = {{val|3.50|1.35}} days[11]
| metal_fe = 0.00[17]
| gravity = 4.56[17]
}}{{Starbox catalog
| names = BD+17° 2462, NLTT 30317, SAO 100038, HD 107146, HIP 60074.[4]
}}{{Starbox reference
| Simbad = HD+107146
}}{{Starbox end}}HD 107146 is a star in the constellation Coma Berenices that is located about {{convert|90|ly|pc|lk=on}} from Earth.[13] The apparent magnitude of 7.028 makes this star too faint to be seen with the unaided eye.
The physical properties of this star are similar to the Sun, including the stellar classification G2V,[4] making this a solar analog.[22] The mass of this star is about 109% of the solar mass ({{Solar mass|link=y}}) and it has about 99% the radius of the Sun ({{Solar radius|link=y}}).[11] It is a young star with an age between 80 and 200 Myr.[13] The axis of rotation is estimated at {{val|21|8|9}} degrees to the line of sight and it completes a rotation in a relatively brief 3.5 days.[11]
Circumstellar disc
In 2003, astronomers recognized the excess infrared[26] and submillimeter[13] emission indicative of circumstellar dust, the first time such a debris disk phenomenon was noted around a star of similar spectral types to the Sun, though having a much younger age. In 2004 the Hubble Space Telescope detected the presence of a spatially resolved disk surrounding the star.[14][29]
The star's circumstellar disc has dimensions of approximately {{nowrap|210 × 300 AU}}.[13] The dusty ring is cool, with a temperature of {{convert|51|K|C F|0|lk=on}}, and has a mass of 0.10 Earth masses ({{Earth mass|link=y}}).[13] Analysis of the debris disk in the far-infrared and submillimeter wavelengths, carried out using the Hubble Space Telescope, suggests the presence of small grains in the disk.[14] The disk appears to be slightly elongated to form an ellipse with its minor axis at a position angle of {{nowrap|58° ± 5°}}; working under the assumption that the disk is in fact circular gives it an inclination of {{nowrap|25° ± 5°}} from the plane of the sky.[14] An analysis published in 2009 suggests the possible presence of a planet at a separation of 45-75 AU.[22]
Gallery
References
1. ^{{cite web|title=Viewing the Vermin Galaxy|url=https://www.spacetelescope.org/images/potw1722a/|website=www.spacetelescope.org|accessdate=29 May 2017}}
2. ^1 {{citation | display-authors=1 | title=High-dispersion optical spectra of nearby stars younger than the Sun | last1=White | first1=Russel J. | last2=Gabor | first2=Jared M. | last3=Hillenbrand | first3=Lynne A. | journal=The Astronomical Journal | volume=133 | issue=6 | pages=2524–2536 |date=June 2007 | doi=10.1086/514336 | bibcode=2007AJ....133.2524W |arxiv = 0706.0542 }}
3. ^1 2 3 {{citation | last1=Landolt | first1=A. U. | title=UBVRI photometry of stars useful for checking equipment orientation stability | journal=Astronomical Journal | volume=88 | pages=853–866 |date=June 1983 | doi=10.1086/113372 | bibcode=1983AJ.....88..853L }}
4. ^1 2 3 {{Cite web | title=HD 107146 | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+107146 | accessdate=2011-12-14 }}
5. ^1 2 3 4 5 6 {{Cite journal | display-authors=1 | last1=Williams | first1=Jonathan P. | last2=Najita | first2=Joan | last3=Liu | first3=Michael C. | last4=Bottinelli | first4=Sandrine | last5=Carpenter | first5=John M. | last6=Hillenbrand | first6=Lynne A. | last7=Meyer | first7=Michael R. | last8=Soderblom | first8=David R. | title=Detection of cool dust around the G2 V star HD 107146 |date=March 2004 | volume=604 | pages=414–419 | arxiv=astro-ph/0311583 | journal=The Astrophysical Journal | doi=10.1086/381721 | bibcode=2004ApJ...604..414W }}
6. ^1 {{Cite journal | last1=Metchev | first1=Stanimir A. | last2=Hillenbrand | first2=Lynne A. | last3=Meyer | first3=Michael R. | title=Ten micron observations of nearby young stars |date=January 2004 | journal=The Astrophysical Journal | volume=600 | pages=435–450| doi=10.1086/379788 | bibcode=2004ApJ...600..435M | arxiv=astro-ph/0309453 }}
7. ^1 2 3 4 {{Cite journal | display-authors=1 | last1=Ardila | first1=D. R. | last2=Golimowski | first2=D. A. | last3=Krist | first3=J. E. | last4=Clampin | first4=M. | last5=Williams | first5=J. P. | last6=Blakeslee | first6=J. P. | last7=Ford | first7=H. C. | last8=Hartig | first8=G. F. | last9=Illingworth | first9=G. D. | title=A resolved debris disk around the G2 V star HD 107146 | journal=The Astrophysical Journal Letters | volume=617 | date=2004 | pages=L147–L150 | doi = 10.1086/427434 | bibcode=2004ApJ...617L.147A | arxiv = astro-ph/0411422 }}
8. ^1 2 {{cite journal | display-authors=1 | last1=Corder | first1=S. A. | first2=John M. | last2=Carpenter | first3=Anneila I. | last3=Sargent | first4=B. Ashley | last4=Zauderer | first5=Melvyn C. H. | last5=Wright | first6=Stephen M. | last6=White | first7=David P. | last7=Woody | first8=Peter | last8=Teuben | first9=Stephen L. | last9=Scott | title=A resolved ring of debris dust around the solar analog HD 107146 | journal=The Astrophysical Journal | volume=690 | date=2009 | pages=L65–L68 | arxiv=0811.2713 | bibcode=2009ApJ...690L..65C | doi=10.1088/0004-637X/690/1/L65 }}
9. ^1 {{Cite web | title=Spitzer and Hubble capture evolving planetary systems | date=December 9, 2004 | publisher=hubblesite.org | url=http://hubblesite.org/newscenter/archive/releases/2004/33/text/ | accessdate=2011-12-14 }}
10. ^1 2 3 4 5 6 {{cite journal | display-authors=1 | last1=Watson | first1=C. A. | last2=Littlefair | first2=S. P. | last3=Diamond | first3=C. | last4=Collier Cameron | first4=A. | last5=Fitzsimmons | first5=A. | last6=Simpson | first6=E. | last7=Moulds | first7=V. | last8=Pollacco | first8=D. | title=On the alignment of debris discs and their host stars' rotation axis - implications for spin-orbit misalignment in exoplanetary systems | journal=Letters | volume=413 | issue=1 | pages=L71–L75 |date=May 2011 | doi=10.1111/j.1745-3933.2011.01036.x | bibcode=2011MNRAS.413L..71W |arxiv = 1009.4132 }}
11. ^1 2 {{cite journal | display-authors=1 | last1=Brugamyer | first1=Erik | last2=Dodson-Robinson | first2=Sarah E. | last3=Cochran | first3=William D. | last4=Sneden | first4=Christopher | title=Silicon and Oxygen Abundances in Planet-host Stars | journal=The Astrophysical Journal | volume=738 | issue=1 |date=September 2011 | doi=10.1088/0004-637X/738/1/97 | bibcode=2011ApJ...738...97B |arxiv = 1106.5509 }}
12. ^{{cite journal | display-authors=1 | last1=Brugamyer | first1=Erik | last2=Dodson-Robinson | first2=Sarah E. | last3=Cochran | first3=William D. | last4=Sneden | first4=Christopher | title=Silicon and Oxygen Abundances in Planet-host Stars | journal=The Astrophysical Journal | volume=738 | issue=1 |date=September 2011 | doi=10.1088/0004-637X/738/1/97 | bibcode=2011ApJ...738...97B |arxiv = 1106.5509 }}