(Redirected from A-type main sequence)
An A-type main-sequence star (A V) or A dwarf star is a main-sequence (hydrogen burning) star of spectral type A and luminosity class V. These stars have spectra defined by strong hydrogen Balmer absorption lines. They measure between 1.4 and 2.1 solar masses (M☉) and have surface temperatures between 7,600 and 10,000 K. Bright and nearby examples are Altair (A7 V) and Sirius A (A1 V). A-type stars do not have convective zones and thus are not expected to harbor magnetic dynamos. As a consequence, because they do not have strong stellar winds, they lack a means to generate X-ray emissions.
| Cathcart (star) |
| Centauri (star) |
| Gliese (star) |
| Kyuk'ya A |
| Kyuk'ya B |
| Nexus (star) |
| Odin (star) |
| R.il'a (star) |
| Tanga (star) |
| Taranis (star) |
| Tyrol B |
See also
- A-type main-sequence star on Wikipedia