Ekzosayyora

Ekzosayyora yoki ekzoplaneta deb Quyosh tizimidan tashqarida joylashgan har qanday sayyoraga aytiladi. Hozirda 5000 dan oshiq ekzosayyora maʼlum.^[1] Somon Yoʻli galaktikasida milliardlab sayyora mavjudligi taxmin etiladi.^{[2][3][3][4][4]} Bizga eng yaqin ekzosayyora Alfa Sentavr yulduz tizimida joylashgan.

1. ↑ Schneider, Jean „Interactive Extra-solar Planets Catalog“. The Extrasolar Planets Encyclopedia (10-sentyabr 2011-yil). Qaraldi: 2012-yil 13-iyul.
2. ↑ The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets, M. Mayor, M. Marmier, C. Lovis, S. Udry, D. Ségransan, F. Pepe, W. Benz, J.-L. Bertaux, F. Bouchy, X. Dumusque, G. Lo Curto, C. Mordasini, D. Queloz, N. C. Santos. September 2011
3. ↑ ^{3,0 3,1} Wall, Mike „160 Billion Alien Planets May Exist in Our Milky WayGalaxy“. Space.com (11-yanvar 2012-yil). Qaraldi: 2012-yil 11-yanvar.
4. ↑ ^{4,0 4,1} Cassan, A; Kubas, D.; Beaulieu, J.-P.; Dominik, M.; Horne, K.; Greenhill, J.; Wambsganss, J.; Menzies, J. et al. (11-yanvar 2012-yil). "One or more bound planets per Milky Way star from microlensing observations". Nature 481 (7380): 167–169. doi:10.1038/nature10684. ISSN 0028-0836. PMID 22237108. http://www.nature.com/nature/journal/v481/n7380/full/nature10684.html. Qaraldi: 2012-01-11.