A-type star
(A)
(type of star with about 2 times the mass of the Sun)
An A-type star is a star in the A-class, a
spectral class for stars of around 2 solar masses
and 2 times solar radius.
They burn up their hydrogen in a few hundred million years.
They have strong hydrogen absorption lines.
Characteristics:
(star type,spectral type)
http://en.wikipedia.org/wiki/Stellar_classification
| WaveL | Freq | Photon
Energy | | |
| 145nm | 2.1PHz | 8.6eV | begin | A-type star |
| 290nm | 1.1PHz | 4.3eV | end | A-type star |
|
Referenced by:
Am star
Ap star
Balmer jump
Balmer-break galaxy (BBG)
Be star
globular cluster (GC)
Hyades Cluster
Markarian galaxy (Mkn)
Morgan classification
RR Lyrae variable
star formation rate (SFR)
spectral class
SS 433
velocity-metallicity relation
index