{{Short description|Star in the constellation Centaurus}} {{Starbox begin | name = HD 115600 }} {{Starbox image | image = [[File:HD115600 disk.jpeg|250px]] | caption = Image of the HD 115600 debris ring from the Gemini Planet Imager. The disk center (diamond) is slightly offset from the star's position (cross). }} {{Starbox observe | epoch = J2000 | constell = [[Centaurus]]<ref name=xhip/> | ra = {{RA|13|19|19.54}}<ref name=dr3/> | dec = {{DEC|-59|28|20.4}}<ref name=dr3/> | appmag_v = 8.22<ref name=tycho2/> }} {{Starbox character | type = [[main sequence]]<ref name=dr3/> | class = F2/F3V<ref name=pecaut2012/> | b-v = 0.37<ref name=hog2010/> | u-b = }} {{Starbox astrometry | radial_v = {{val|+12.51|0.18}}<ref name=dr3/> | prop_mo_ra = −32.737<ref name=dr3/> | prop_mo_dec = −18.275<ref name=dr3/> | parallax = 9.1707 | p_error = 0.0210 | parallax_footnote = <ref name=dr3/> | absmag_v = 3.03<ref name=xhip/> }} {{Starbox detail | mass = 1.57<ref name=tic/> | radius = 1.55<ref name=tic/> | luminosity = 5.47<ref name=tic/> | temperature = 7,092<ref name=tic/> | gravity = 4.25<ref name=tic/> | rotational_velocity = 61<ref name=chen2011/> | rotation = | age_myr = 15<ref name=currie2015/> }} {{Starbox catalog | names = [[Durchmusterung|CD]]−58°4985, [[Hipparcos catalogue|HIP]] 64995, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 240737 }} {{Starbox reference | Simbad = HD+115600 }} {{Starbox end}}
'''HD 115600''' is a [[star]] in the constellation [[Centaurus (constellation)|Centaurus]] and a member of the [[Scorpius–Centaurus association]], the nearest [[OB association]] to the [[Sun]] and the host star of a bright [[Kuiper belt]]-like debris ring.<ref name="currie2015"/>
The star has a spectral type of F2/F3V and is about 50% more massive than the Sun<ref name = "pecaut2012"/> and is located {{convert|109.0|pc|ly|adj=ri0}} distant from Earth. It is around 15 million years old.<ref name = "currie2015"/> Data from the [[Spitzer Space Telescope]] revealed a large infrared excess consistent with the presence of a luminous, dusty [[circumstellar disk]].<ref name = "chen2011"/>
==Debris ring== On May 26, 2015 a team led by Thayne Currie, Carey Lisse, and [[Marc Kuchner]] announced the discovery of a scattered light-resolved debris disk<ref name = "currie2015"/> likely responsible for the system's strong infrared excess around HD 115600 using the [[Gemini Planet Imager]].
The debris disk is shaped like a ring and has a (luminosity-scaled) semimajor axis of about 48 (22) [[Astronomical unit|AU]], comparable to the current Kuiper belt.<ref name="jewitt1992"/> The debris ring appears eccentric. Using models simulating the interaction between massive planets and debris disks, eccentric analogues of the outer solar system planets could explain the disk's eccentricity and ring-like appearance.<ref name = "currie2015"/>
The dust making the ring visible appears to be neutral scattering; spectra of the ring ansae reveal a gray to slightly blue color, consistent with major Kuiper belt constituents. The disk likely has a very high [[albedo]], which is expected if it is icy like the Kuiper belt. The disk is the first new object discovered with extreme [[adaptive optics]].<ref name = "currie2015"/>
==References== {{reflist|30em|refs=
<ref name=dr3>{{cite Gaia DR3|6061991269115435136}}</ref>
<ref name=xhip>{{cite XHIP|64995}}</ref>
<ref name=tic>{{cite journal |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=De Lee |first6=Nathan |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |last16=Kane |first16=Stephen R. |last17=Barclay |first17=Thomas |last18=Bean |first18=Jacob L. |last19=Brassuer |first19=C. E. |last20=Charbonneau |first20=David |last21=Ge |first21=Jian |last22=Lissauer |first22=Jack J. |last23=Mann |first23=Andrew W. |last24=McLean |first24=Brian |last25=Mullally |first25=Susan |last26=Narita |first26=Norio |last27=Plavchan |first27=Peter |last28=Ricker |first28=George R. |last29=Sasselov |first29=Dimitar |last30=Seager |first30=S. |display-authors=1 |title=The Revised TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=2019 |volume=158 |issue=4 |page=138 |doi=10.3847/1538-3881/ab3467 |doi-access=free |arxiv=1905.10694 |bibcode=2019AJ....158..138S }}</ref>
<ref name=chen2011>{{cite journal |last1=Chen |first1=Christine H. |last2=Mamajek |first2=Eric E. |last3=Bitner |first3=Martin A. |last4=Pecaut |first4=Mark |last5=Su |first5=Kate Y. L. |last6=Weinberger |first6=Alycia J. |title=A Magellan MIKE and Spitzer MIPS Study of 1.5-1.0 M <SUB>sun</SUB> Stars in Scorpius-Centaurus |journal=The Astrophysical Journal |date=2011 |volume=738 |issue=2 |page=122 |doi=10.1088/0004-637X/738/2/122 |bibcode=2011ApJ...738..122C }}</ref>
<ref name=tycho2>{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=2000 |volume=355 |bibcode=2000A&A...355L..27H }}</ref>
<ref name=currie2015>{{citation | display-authors=3 | last1=Currie | first1=T. | last2=Lisse | first2=C. | last3=Kuchner | first3=M. | last4=Madhusdhan | first4=N. | last5=Kenyon | first5=S. J. | last6=Thalmann | first6=C. | last7=Carson | first7 = J. | last8= Debes | first8 = J. H. | title=Direct Imaging and Spectroscopy of a Young Extrasolar Kuiper Belt in the Nearest OB Association | year = 2015 | journal=The Astrophysical Journal Letters |arxiv = 1505.06734 | doi=10.1088/2041-8205/807/1/l7 | volume=807 | issue=1 | pages=L7|bibcode = 2015ApJ...807L...7C | s2cid=119111137 }}</ref>
<ref name = hog2010>{{citation | display-authors=3 | last1=Hog | first1=E. | last2=Fabricius | first2=C. | last3=Makarov | first3= V.V.| last4=Urban | first4=S. | last5=Corbin | first5=T. | last6=Wycoff | first6=G. | last7=Bastian | first7= U. | last8 = Schwekendiek | first8 = P. | last9=Wicenec | first9 = A.| title=The Tycho-2 catalogue of the 2.5 million brightest stars | journal=Astronomy and Astrophysics Letters | volume = 355 | pages=27 |year=2010}}</ref>
<ref name =jewitt1992>{{citation | last1=Jewitt |first1=D.|last2=Luu |first2=J.|title=Discovery of the candidate Kuiper belt object 1992 QB1 | journal = Nature | volume = 362 | pages = 730–732 |year=1993 |issue=6422| doi=10.1038/362730a0|bibcode = 1993Natur.362..730J |s2cid=4359389}}</ref>
<ref name = pecaut2012>{{citation | last1=Pecaut | first1=M. | last2=Mamajek | first2=E. | last3=Bubar | first3= E.| title=A Revised Age for Upper Scorpius and the Star Formation History among the F-type Members of the Scorpius–Centaurus OB Association | journal=The Astrophysical Journal | volume = 746 | pages=154 | arxiv = 1112.1695 |year=2012 | issue=2 | doi=10.1088/0004-637x/746/2/154 | bibcode=2012ApJ...746..154P| s2cid=118461108 }}</ref>
}}
{{Stars of Centaurus}}
[[Category:Centaurus]] [[Category:Durchmusterung objects]] [[Category:Henry Draper Catalogue objects|115600]] [[Category:Hipparcos objects|064995]] [[Category:Circumstellar disks]] [[Category:F-type main-sequence stars]] [[Category:Lower Centaurus Crux]]