Sigma Octantis

Sigma Octantis is the current southern pole star. It is an F-type giant star. However, it is not as useful as the north pole star, Polaris, as it is much dimmer. ^[1] It is 7,415 degrees Kelvin.^[2]

Sigma Octantis Media

A light curve for Sigma Octantis, plotted from TESS data
The south celestial pole. The trapezoidal asterism at the centre includes Sigma Octantis.

References

↑ Malaroda, S. (1 August 1975). "Study of the F-type stars. I. MK spectral types". The Astronomical Journal. 80: 637–641. Bibcode:1975AJ.....80..637M. doi:10.1086/111786 – via NASA ADS.
↑ David, Trevor J.; Hillenbrand, Lynne A. (1 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607 – via NASA ADS.

This short article about science can be made longer. You can help Wikipedia by adding to it.

This short article about physics can be made longer. You can help Wikipedia by adding to it.

[1] Malaroda, S. (1 August 1975). "Study of the F-type stars. I. MK spectral types". The Astronomical Journal. 80: 637–641. Bibcode:1975AJ.....80..637M. doi:10.1086/111786 – via NASA ADS.

[2] David, Trevor J.; Hillenbrand, Lynne A. (1 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607 – via NASA ADS.

[1]

[2]