| Name: | SAO 94027 |
| Other names: | Aldebaran, Alpha Tauri |
| Description: | K5 Giant star |
| Ascension: | 4h 35min 55,2 |
| Declanation: | +16° 30' 33' |
| Apparent diameter: | |
| Constellation: | Taurus |
| Magnitude: | 0.8 |
| Distance: | 65 light years |
| Equipment: | Meade ETX90+sc3 icx424 Rainbow Optics |
| Date / Time UTC: | 24 november 2004 23:00 |
| Stacked : | 1 |
| Exposure time: | from AVI |
| Location: | The Hague, The Netherlands |
| Other info: | Aldebaran is a K5 III star, which means it is orangish,
large, and has moved off of the main sequence by using all its
hydrogen fuel. It has a minor companion (a dim M2 dwarf orbiting
at several hundred AU). Now primarily fusing helium, the main
star has expanded to a diameter of approximately 5.3 ? 107 km,
or about 38 times the diameter of the Sun. The Hipparcos satellite
has measured it as 65.1 light years away, and it shines with 150
times the Sun's luminosity. Taken together this distance and brightness
makes it the 13th brightest star in the sky. It is slightly variable,
of the pulsating variable type, by about 0.2 magnitude. |
© Job Gehéniau
http://www.jgeheniau.nl/etx90/astronomy2.html