An Réalta Thuaidh
An réalta is gile i réaltbhuíon an Bhéir Bhig, a luíonn taobh istigh de 1° ón mol neamhaí thuaidh anois. Tugtar Polaris uirthi freisin. Is ionann a airde le domhanleithead an fhéachadóra, a bheag nó a mhór. D'úsáidtí le fada í i gcomhair loingseoireachta simplí.[7]
Tagairtí
- ↑ "Color excesses for supergiants and classical Cepheids. I. Calibration of the G-band photometry" (as Béarla) (1960): 330–350. doi: .
- ↑ Ráite i: Catalogue of Stellar Photometry in Johnson's 11-color system. Stated in source according to: SIMBAD. Teanga an tsaothair nó an ainm: Béarla. Dáta foilsithe: 2002.
- ↑ 3.0 3.1 3.2 "Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library" (as Béarla) (Feabhra 2012): A143. doi: .
- ↑ 4.0 4.1 4.2 4.3 4.4 Floor van Leeuwen (2007). "Validation of the new Hipparcos reduction" (as Béarla) (2): 653–664. doi: .
- ↑ Ráite i: Catalogue of rotational velocities of the stars. Stated in source according to: SIMBAD. Teanga an tsaothair nó an ainm: Béarla. Dáta foilsithe: Meitheamh 1970.
- ↑ Ráite i: Gaia Data Release 2. Teanga an tsaothair nó an ainm: Béarla. Dáta foilsithe: 25 Aibreán 2018.
- ↑ Hussey, Matt (2011). "An Réalta Thuaidh". Fréamh an Eolais. Coiscéim. p. 552.