Proxima Centauri b
Planed allheulol yw Proxima Centauri b (gelwir hefyd yn Proxima b[1][2]) sy'n cylchdroi o fewn parth trigiadwy'r seren corrach coch Proxima Centauri, y seren agosaf i'r Haul. Mae wedi ei leoli tua 4.25 blwyddyn golau (1.3 parsec, neu 40,140,000,000,000 km) i ffwrdd o'r Ddaear yng nghytser Centaurus. Hwn yw'r blaned allheulol agosaf i Gysawd yr Haul, yn ogystal â'r allblaned agosaf rydym yn gwybod amdano a allai gynnal bywyd.
 | |
| Enghraifft o'r canlynol | planed allheulol  |
|---|---|
| Màs | 0.00337 |
| Dyddiad darganfod | 24 Awst 2016 |
| Cytser | Centaurus |
| Echreiddiad orbital | 0.02 +0.04 -0.02 |
| Paralacs (π) | 768.5004 ±0.2 |
 Ffeiliau perthnasol ar Gomin Wicimedia | |
Darganfuwyd y blaned gan dîm wedi ei arwain gan Guillem Anglada-Escudé o Queen Mary, Prifysgol Llundain a cyhoeddwyd y darganfyddiad yng nghylchgrawn Nature ar 24 Awst 2016.[3][4][5]
Cyfeiriadau golygu
- ↑ "Earth-like planet discovered orbiting sun's neighbor". CNN. 24 Awst 2016. Cyrchwyd 24 Awst 2016.
A planet named Proxima b has been discovered orbiting the closest star to our sun.
- ↑ Davis, Nicola (24 Awst 2016). "Discovery of potentially Earth-like planet Proxima b raises hopes for life". The Guardian. Cyrchwyd 24 Awst 2016.
- ↑ Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; Berdiñas, Zaira M.; Butler, R. Paul; Coleman, Gavin A. L.; de la Cueva, Ignacio; Dreizler, Stefan et al. (25 August 2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri" (yn en). Nature 536 (7617): 437–440. doi:10.1038/nature19106. ISSN 0028-0836. http://www.nature.com/nature/journal/v536/n7617/full/nature19106.html.
- ↑ Witze, Alexandra (24 August 2016). "Earth-sized planet around nearby star is astronomy dream come true". Nature. tt. 381–382. doi:10.1038/nature.2016.20445. Cyrchwyd 24 August 2016.
- ↑ http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf A terrestrial planet candidate in a temperate orbit around Proxima Centauri
