Zeruaren hegoaldean kokaturiko izar batentzat, zeruan duen angelua latitudea eta deklinazioaren arteko kenduraren berdina da. Zeru-angelua 90º edo handiagoa denean izarra begi bistatik ateratzen da, hau da, ortzi-mugapean geratzen da. Horrenbestez, Proxima Centaurirentzat:
Latitude maximoa = 90° + −62.68° = 27.32°.
Ikus Campbell, William Wallace (1899). The elements of practical astronomy. London: Macmillan. 109–110. orrialdeak.
Peebles, P. J. E. (Phillip James Edwin). (1993). Principles of physical cosmology. Princeton, N.J. : Princeton University Press (Noiz kontsultatua: 2020-05-22).
Benedict, G. Fritz; McArthur, Barbara; Nelan, E.; Story, D.; Whipple, A. L.; Shelus, P. J.; Jefferys, W. H.; Hemenway, P. D. et al.. (1998-07). «Photometry of Proxima Centauri and Barnard's Star Using [ITALHubble[/ITAL] [ITAL]Space[/ITAL] [ITAL]T[/ITAL][ITAL]elescope[/ITAL] Fine Guidance Sensor 3: A Search for Periodic Variations»] The Astronomical Journal 116 (1): 429–439. doi:10.1086/300420. (Noiz kontsultatua: 2020-05-22).
Benedict, G. Fritz; McArthur, Barbara; Chappell, D. W.; Nelan, E.; Jefferys, W. H.; van Altena, W.; Lee, J.; Cornell, D. et al.. (1999-08). «Interferometric Astrometry of Proxima Centauri and Barnard's Star Using [ITALHUBBLE SPACE TELESCOPE[/ITAL] Fine Guidance Sensor 3: Detection Limits for Substellar Companions»] The Astronomical Journal 118 (2): 1086–1100. doi:10.1086/300975. (Noiz kontsultatua: 2020-05-22).
Benedict, G. Fritz; McArthur, Barbara; Nelan, E.; Story, D.; Whipple, A. L.; Shelus, P. J.; Jefferys, W. H.; Hemenway, P. D. et al.. (1998-07). «Photometry of Proxima Centauri and Barnard's Star Using [ITALHubble[/ITAL] [ITAL]Space[/ITAL] [ITAL]T[/ITAL][ITAL]elescope[/ITAL] Fine Guidance Sensor 3: A Search for Periodic Variations»] The Astronomical Journal 116 (1): 429–439. doi:10.1086/300420. (Noiz kontsultatua: 2020-05-22).
Benedict, G. Fritz; McArthur, Barbara; Chappell, D. W.; Nelan, E.; Jefferys, W. H.; van Altena, W.; Lee, J.; Cornell, D. et al.. (1999-08). «Interferometric Astrometry of Proxima Centauri and Barnard's Star Using [ITALHUBBLE SPACE TELESCOPE[/ITAL] Fine Guidance Sensor 3: Detection Limits for Substellar Companions»] The Astronomical Journal 118 (2): 1086–1100. doi:10.1086/300975. (Noiz kontsultatua: 2020-05-22).
Dentsitatea (ρ) masa eta bolumenaren arteko zatiketaren zatidura da. Eguzkiari dagokionean, honakoa da dentsitatea:
= 0.122 · 0.154−3 · (1.41 × 103 kg/m3)
= 33.4 · (1.41 × 103 kg/m3)
= 4.71 × 104 kg/m3
Non ρ batez besteko dentsitatea den. Ikus:
Munsell, Kirk; Smith, Harman; Davis, Phil; Harvey, Samantha (June 11, 2008). "Sun: facts & figures". Solar system exploration. NASA. Archived from the original on January 2, 2008. Retrieved July 12, 2008.
Bergman, Marcel W.; Clark, T. Alan; Wilson, William J. F. (2007). Observing projects using Starry Night Enthusiast (8th ed.). Macmillan. pp. 220–221. ISBN 978-1-4292-0074-5.