View source for Astronomy:WISEPC J205628.90+145953.3

{{Short description|Star in the constellation Delphinus}}
{{Sky|20|56|28.88|+|14|59|53.68|24.5}}
{{Starbox begin
| name=WISEPC J205628.90+145953.3
}}
{{Starbox observe
| epoch=MJD 55511.01{{r|Kirkpatrick2011}} 
| equinox=[[Astronomy:J2000|J2000]]{{r|Kirkpatrick2011}} 
| constell=[[Astronomy:Delphinus|Delphinus]]
| ra={{RA|20|56|28.88}}{{r|Kirkpatrick2011}}
| dec={{DEC|14|59|53.68}}{{r|Kirkpatrick2011}}
}}
{{Starbox character
|class=Y0{{r|Kirkpatrick2011|Kirkpatrick2012}}
|appmag_1_passband=J <small>(2MASS filter system)</small>
|appmag_1=>17.6{{r|Kirkpatrick2011}}
|appmag_2_passband=J <small>([[Astronomy:Mauna Kea Observatory|MKO]] filter system)</small>
|appmag_2=19.21 ± 0.07{{r|Kirkpatrick2011}}
|appmag_3_passband=H <small>(2MASS filter system)</small>
|appmag_3=>17.1{{r|Kirkpatrick2011}}
|appmag_4_passband=H <small>([[Astronomy:Mauna Kea Observatory|MKO]] filter system)</small>
|appmag_4=19.56 ± 0.18{{r|Kirkpatrick2011}}
}}
{{Starbox astrometry
|prop_mo_ra={{val|825.8|0.8}}
|prop_mo_dec={{val|528.8|0.8}}
|pm_footnote=<ref name="Kirkpatrick2021"/>
|parallax=140.8
|p_error=2.0
|parallax_footnote=<ref name="Kirkpatrick2021"/>
}}
{{Starbox detail
|mass_mj=20 (12–30){{r|Cushing2011}}
|radius_rj=0.93 (0.86–1.01){{r|Cushing2011}}
|gravity=4.75 (4.5–5.0){{r|Cushing2011}}
|temperature={{val|464|88}}<ref name="Kirkpatrick2021"/>
}}
{{Starbox catalog
| names=[[Astronomy:Wide-field Infrared Survey Explorer|WISEPC]] J205628.90+145953.3{{r|Kirkpatrick2011}}<br/>[[Astronomy:Wide-field Infrared Survey Explorer|WISEPC]] J2056+1459{{r|Cushing2011}}<br/>[[Astronomy:Wide-field Infrared Survey Explorer|WISE]] J2056+1459{{r|Kirkpatrick2011}}<br/>[[Astronomy:Wide-field Infrared Survey Explorer|WISE]] 2056+1459{{r|Kirkpatrick2011}}
}}
{{Starbox reference
|Simbad=WISE+J205628.91%2B145953.2
}}
{{Starbox end}}

'''WISE 2056+1459''' (full designation '''WISEPC J205628.90+145953.3''') is a [[Astronomy:Brown dwarf|brown dwarf]] of spectral class Y0,{{r|Kirkpatrick2011|Kirkpatrick2012}} located in constellation [[Astronomy:Delphinus|Delphinus]] at approximately 23.2 [[Astronomy:Light-year|light-year]]s from [[Astronomy:Earth|Earth]].<ref name="Kirkpatrick2021"/>

==History of observations==

===Discovery===
WISE 2056+1459 was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40&nbsp;cm (16&nbsp;in) space telescope, which mission lasted from December 2009 to February 2011. WISE 2056+1459 has two discovery papers: ''Kirkpatrick et al. (2011)'' and ''Cushing et al. (2011)'', however, basically with the same authors and published nearly simultaneously.{{r|Kirkpatrick2011|Cushing2011}}

*Kirkpatrick ''et al.'' presented discovery of 98 new found by WISE [[Astronomy:Brown dwarf|brown dwarf]] systems with components of spectral types M, L, T and Y, among which also was WISE 2056+1459.{{r|Kirkpatrick2011}}<ref name="note 1" group="~">These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.</ref>
*Cushing ''et al.'' presented discovery of seven brown dwarfs — one of T9.5 type, and six of Y-type — first members of the Y spectral class, ever discovered and spectroscopically confirmed, including "archetypal member" of the Y spectral class [[Astronomy:WISE 1828+2650|WISE 1828+2650]], and WISE 2056+1459.{{r|Cushing2011}} These seven objects are also the faintest seven of 98 brown dwarfs, presented in ''Kirkpatrick et al. (2011)''.{{r|Kirkpatrick2011}}

==Distance==
Currently the most accurate distance estimate of WISE 2056+1459 is a trigonometric parallax, published in 2021 by Kirkpatrick ''et al.'': {{val|140.8|2.0|ul=mas}}, corresponding to a distance {{val|7.1|0.1|ul=pc}}, or {{val|23.2|0.3|ul=ly}}.<ref name="Kirkpatrick2021"/>

==Space motion==
WISE 2056+1459 has a proper motion of {{val|980.6|1.1}} milliarcseconds per year.<ref name="Kirkpatrick2021"/>

==Temperature==

The object's temperature estimate is {{val|464|88|ul=K}}.<ref name="Kirkpatrick2021"/>

==See also==
The other six discoveries of brown dwarfs, published in ''Cushing et al. (2011)'':{{r|Cushing2011}}
*WISE 0148-7202 (T9.5)
*[[Astronomy:WISEPA J041022.71+150248.5|WISE 0410+1502]] (Y0)
*WISE 1405+5534 (Y0 (pec?))
*WISE 1541-2250 (Y0.5)
*[[Astronomy:WISEPA J173835.53+273258.9|WISE 1738+2732]] (Y0)
*WISE 1828+2650 (≥Y2)

==Notes==
{{reflist|colwidth=30em|group=~}}

==References==
{{reflist|colwidth=30em|refs=
<ref name="Cushing2011">{{cite journal  |last1=Cushing |first1=Michael C.  |title=The Discovery of Y Dwarfs using Data from the Wide-field Infrared Survey Explorer (WISE)  |year=2011  |doi=10.1088/0004-637X/743/1/50  |bibcode=2011ApJ...743...50C|journal=The Astrophysical Journal |volume= 743 |pages=50  |number =1 |last2=Kirkpatrick  |first2=J. Davy  |last3=Gelino  |first3=Christopher R.  |last4=Griffith  |first4=Roger L.  |last5=Skrutskie  |first5=Michael F.  |last6=Mainzer  |first6=A.  |last7=Marsh  |first7=Kenneth A.  |last8=Beichman  |first8=Charles A.  |last9=Burgasser  |first9=Adam J.  |last10=Prato  |first10=Lisa A.  |last11=Simcoe  |first11=Robert A.  |last12=Marley  |first12=Mark S.  |last13=Saumon  |first13=D.  |last14=Freedman  |first14=Richard S.  |last15=Eisenhardt  |first15=Peter R.  |last16=Wright  |first16=Edward L.  |arxiv = 1108.4678 |s2cid=286881 }}</ref>

<ref name="Kirkpatrick2011">{{cite journal |doi=10.1088/0067-0049/197/2/19 |last1=Kirkpatrick |first1=J. Davy |last2=Cushing |first2=Michael C. |last3=Gelino |first3=Christopher R. |last4=Griffith |first4=Roger L. |last5=Skrutskie |first5=Michael F. |last6=Marsh |first6=Kenneth A. |last7=Wright |first7=Edward L. |last8=Mainzer |first8=Amy K. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Thompson |first11=Maggie A. |last12=Bauer |first12=James M. |last13=Benford |first13=Dominic J. |last14=Bridge |first14=Carrie R. |last15=Lake |first15=Sean E. |last16=Petty |first16=Sara M. |last17=Stanford |first17=Spencer Adam |last18=Tsai |first18=Chao-Wei |last19=Bailey |first19=Vanessa |last20=Beichman |first20=Charles A. |last21=Bloom |first21=Joshua S. |last22=Bochanski |first22=John J. |last23=Burgasser |first23=Adam J. |last24=Capak |first24=Peter L. |last25=Cruz |first25=Kelle L. |last26=Hinz |first26=Philip M. |last27=Kartaltepe |first27=Jeyhan S. |last28=Knox |first28=Russell P. |last29=Manohar |first29=Swarnima |last30=Masters |first30=Daniel |last31=Morales-Calderon |first31=Maria |last32=Prato |first32=Lisa A. |last33=Rodigas |first33=Timothy J. |last34=Salvato |first34=Mara |last35=Schurr |first35=Steven D. |last36=Scoville |first36=Nicholas Z. |last37=Simcoe |first37=Robert A. |last38=Stapelfeldt |first38=Karl R. |last39=Stern |first39=Daniel |last40=Stock |first40=Nathan D. |last41=Vacca |first41=William D. |title=The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE) |date=2011 |journal=The Astrophysical Journal Supplement |volume=197 |issue=2 |pages=19 |arxiv=1108.4677v1 |bibcode=2011ApJS..197...19K |s2cid=16850733 }}</ref>

<ref name="Kirkpatrick2012">{{cite journal |last1=Kirkpatrick |first1=J. Davy |last2=Gelino |first2=Christopher R. |last3=Cushing |first3=Michael C. |last4=Mace | first4=Gregory N. |last5=Griffith |first5=Roger L. |last6=Skrutskie |first6=Michael F. |last7=Marsh |first7=Kenneth A. |last8=Wright |first8=Edward L. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Mainzer | first11=Amy K. |last12=Burgasser |first12=Adam J. |last13=Tinney |first13=Chris G. |last14=Parker |first14=Stephen |last15=Salter |first15=Graeme |title=Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function |year=2012 |journal=[[Astronomy:The Astrophysical Journal|The Astrophysical Journal]] |volume=753 |issue=2 |pages=156 |arxiv=1205.2122 |doi=10.1088/0004-637X/753/2/156 |bibcode=2012ApJ...753..156K |s2cid=119279752 }}</ref>

<!--<ref name="Beichman2014">{{cite journal|first1=C. |last1=Beichman|first2=Christopher R. |last2=Gelino|first3=J. Davy |last3=Kirkpatrick|first4=Michael C. |last4=Cushing|first5=Sally |last5=Dodson-Robinson|first6=Mark S. |last6=Marley|first7=Caroline V. |last7=Morley|first8=E. L. |last8=Wright|year=2014|title=WISE Y Dwarfs As Probes of the Brown Dwarf-Exoplanet Connection|journal=[[Astronomy:The Astrophysical Journal|The Astrophysical Journal]]|volume=783 |issue=2 |page=68|arxiv=1401.1194v2|bibcode=2014ApJ...783...68B|doi=10.1088/0004-637X/783/2/68|s2cid=119302072 }}</ref>-->

<ref name="Kirkpatrick2021">{{cite journal |last1=Kirkpatrick |first1=J. Davy |last2=Gelino |first2=Christopher R. |display-authors=0 |date=March 2021 |title=The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and Y Dwarfs |journal=The Astrophysical Journal Supplement Series |volume=253 |issue=1 |pages=7 |doi=10.3847/1538-4365/abd107 |arxiv=2011.11616 |bibcode=2021ApJS..253....7K|s2cid=227126954 |doi-access=free }}</ref>

}}
*{{cite journal | last=Marsh |first=Kenneth A. | author2=Wright, Edward L. | author3=Kirkpatrick, J. Davy | author4=Gelino, Christopher R. | author5=Cushing, Michael C. | author6=Griffith, Roger L. | author7=Skrutskie, Michael F. | author8=Eisenhardt, Peter R. | date=2013 | title=Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T | journal=[[Astronomy:The Astrophysical Journal|The Astrophysical Journal]] | volume=762 | issue=2 | pages=119 | arxiv=1211.6977 | bibcode=2013ApJ...762..119M | doi=10.1088/0004-637X/762/2/119|s2cid=42923100 }}

{{Stars of Delphinus}}

{{DEFAULTSORT:WISEPC J205628.90+145953.3}}
[[Category:Brown dwarfs]]
[[Category:Delphinus]]
[[Category:WISE objects]]

{{Sourceattribution|WISEPC J205628.90+145953.3}}