Yunit na pang-astronomiya
Ang yunit na astronomikal, astronomikal na yunit o astronomical unit sa Wikang Ingles (pinapaikli bilang au[1]; isinasama rin ang ibang pagpapaikli tulad ng ㍳, a.u. , ya at ua[2]) ay isang yunit ng haba na may kasalukuyang definisyon na 149597870700 m (92,955,807.3 mi),[3] o katumbas ng distansiya ng Mundo–Araw.
| Sistema ng yunit: | Astronomikal na sistema ng mga yunit (Tinanggap gamitin para sa SI) |
| Kantidad: | haba |
| Simbolo: | au o ua (pandaigdigan) ya (lokal) |
| Ang 1 au o ua (pandaigdigan) ya (lokal) sa... |
ay may katumbas na... |
| km | 149.6×106 |
| mi | 92.956×106 |
| pc | 4.8481×10−6 |
| ly | 15.813×10−6 |
Orihinal na binigyang kahulugan ang yunit astronomikal bilang haba ng bahagyang pangunahin na aksis ng eliptikong ligiran ng Mundo na pumapaligid sa Araw.
TalababaBaguhin
- ↑ "RESOLUTION B2 on the re-definition of the astronomical unit of length" (PDF), RESOLUTION B2, Beijing, Kina: International Astronomical Union, 31 August 2012, nakuha noong 2013-05-11, Sipi:
The XXVIII General Assembly of International Astronomical Union recommends [adopted] … that the unique symbol “au” be used for the astronomical unit.
{{citation}}: Ang|editor-first=ay nawawalan ng|editor-last=(tulong) - ↑ Bureau International des Poids et Mesures (2006), The International System of Units (SI) (PDF) (ika-8th (na) edisyon), Organisation Intergouvernementale de la Convention du Mètre, pa. 126
- ↑ "RESOLUTION B2 on the re-definition of the astronomical unit of length" (PDF), RESOLUTION B2, Beijing, Kina: International Astronomical Union, 31 August 2012, nakuha noong 2012-09-19, Sipi:
The XXVIII General Assembly of International Astronomical Union recommends [adopted] that the astronomical unit be re-defined to be a conventional unit of length equal to exactly 149 597 870 700 meters, in agreement with the value adopted in IAU 2009 Resolution B2
{{citation}}: Ang|editor-first=ay nawawalan ng|editor-last=(tulong)
Basahin dinBaguhin
- Williams, D.; Davies, R. D. (1968), "A radio method for determining the astronomical unit", Monthly Notices of the Royal Astronomical Society, 140: 537, Bibcode:1968MNRAS.140..537W
Mga kawing na panlabasBaguhin
- The IAU and astronomical units
- Recommendations concerning Units Naka-arkibo 2007-02-16 sa Wayback Machine. (HTML version of the IAU Style Manual)
- Chasing Venus, Observing the Transits of Venus
- Transit of Venus Naka-arkibo 2021-01-02 sa Wayback Machine.