Caliak sumber untuak Massa Matoari

{{see also|Massa bintang}}
{{sadang karajo}}{{Infobox unit
| name = Massa Matoari
| image = [[Berkas:Sun vs planets en.svg|260px]]
| caption = Matoari manganduang labiah dari 99% massa Tata Surya. Bando langik nan labiah ringan dari [[Saturnus]] indak tacaliak pado skala iko.
| standard = [[astronomi]]
| quantity = [[massa]]
| symbol = {{Solar mass}}
| extralabel = Dalam [[satuan pokok SI]]
| extradata = {{val|1.98847|0.00007|e=30|u=kilogram}}<ref>{{cite web |year=2014 |title=Astronomical Constants |url=http://asa.usno.navy.mil/static/files/2014/Astronomical_Constants_2014.pdf |pages=2 |access-date=10 April 2019 |work=[[The Astronomical Almanac]] |archive-date=2013-11-10 |archive-url=https://web.archive.org/web/20131110215339/http://asa.usno.navy.mil/static/files/2014/Astronomical_Constants_2014.pdf |dead-url=yes }}</ref><ref>{{cite web |url=http://physics.nist.gov/cgi-bin/cuu/Value?bg |title=Newtonian constant of gravitation |access-date=10 April 2019 |work=Physical Measurement Laboratory}}</ref>
}}
'''Massa Matoari''' ('''{{solar mass}}''') adolah standar [[massa#Satuan-satuan massa|satuan massa]] di [[astronomi]] nan paguno untuak manunjuakan massa [[bintang]] lainya, [[Kluster|cluster]], [[nebulas|nebula]] dan [[galaxies|galaksi]]. Hal iko samo jo massa Matoari, sakitar duo nonillion kilogram:
:{{math|{{solar mass}} {{=}} {{val|1.98847|0.00007|e=30|u=kilogram}}}}<ref>2014 Astronomical Constants http://asa.usno.navy.mil/static/files/2014/Astronomical_Constants_2014.pdf {{Webarchive|url=https://web.archive.org/web/20131110215339/http://asa.usno.navy.mil/static/files/2014/Astronomical_Constants_2014.pdf |date=2013-11-10 }}</ref><ref>NIST CODATA http://physics.nist.gov/cgi-bin/cuu/Value?bg</ref>
Massa di ateh iyolah sakitar 332 946 kali [[massa Bumi]] ({{earth mass}}), atau 1047 kali [[massa Jupiter]] (''M''<sub>J</sub>).

Basobok bumi punyo sabuah [[orbit elips]] mangaliliangi Matoari, massa surya dapek baituang dari parsamoan untuak [[periode orbit]] dari objek ketek nan mangorbit massa pusek.<ref name=harwit1998>{{citation |first1=Martin |last1=Harwit |date=1998 |title=Astrophysical concepts |series=Astronomy and astrophysics library |edition=3rd |publisher=Springer |isbn=0-387-94943-7 |pages=72, 75 |url=https://books.google.com/books?id=trAAgqWZVlkC&pg=PA72}}</ref> Badasarkan panjang taun, jarak dari Bumi ka Matoari ([[satuan astronomi]] atau AU), dan [[konstanta gravitasi]] (<math>G</math>), massa Matoari barumuskan jo:
:<math>M_\odot = \frac{4 \pi^2 \times (1\,\mathrm{AU})^3}{G \times (1\,\mathrm{yr})^2}</math>

Massa Matoari alah manurun sojak katiko itu tabantuak. Hal iko tajadi malalui duo proses dalam jumlah nan hampir samo. Partamo, dalam [[inti Matoari]] maubah [[hidrogen]] manjadi [[helium]] dek [[fusi nuklir]], khususnyo [[Reaksi rantai proton-proton|rantai p-p]], dan reaksi iko mangkonversi babarapo massa manjadi [[energi dalam]] bantuak foton [[Sinar gama|sinar gamma]]. Sabagian gadang energi iko akhianyo mamancar jauah dari Matoari. Kaduo, proton energi tinggi dan [[elektron]] Matoari nan bakaluakan langsuang ka [[lua angkaso]] sabagai [[angin surya]] dan [[lontaran massa korona]].

Massa asli dari Matoari katiko tu mancapai [[deret utamo]] masiah alun jaleh. Bamulo Matoari punyo tingkek kailangan massa nan jauah labiah tinggi daripado kini, sahinggo mungkin alah kahilangan di mano sajo 1-7% dari massa lapeh nan salamo saumua hiduik utamo-urutannyo.<ref name=apj583_2_1024>{{citation |last1=Sackmann |first1=I.-Juliana |last2=Boothroyd |first2=Arnold I. |title=Our Sun. V. A Bright Young Sun Consistent with Helioseismology and Warm Temperatures on Ancient Earth and Mars |journal=The Astrophysical Journal |volume=583 |issue=2 |pages=1024–1039 |date=February 2003 |doi=10.1086/345408 |bibcode=2003ApJ...583.1024S |arxiv= astro-ph/0210128}}</ref> Sadangkan paningkekan massa Matoari sangek ketek malalui dampak [[asteroid]] dan [[komet]]; Dek tu Matoari alah mamacik 99,86% dari total massa [[Tata Surya]], sahinggo dampak tasabuik indak dapek mangimbangi massa nan ilang dek radiasi dan ejeksi.



{{Astronomi-stub}}