Оглавление
Изображения
Загрузить ваше изображение
DSS Images Other Images
Публикации по объекту
Population studies. I - The Bidelman-MacConnell 'weak-metal' stars
BRVI and DDO photometry are presented for 309 Bidelman-MacConnell'weak-metal' stars. Radial velocities are calculated for most of thestars having Fe/H abundances of no more than -0.8. The photometricobservations were carried out using the 0.6-meter and 1.0-metertelescopes of the Siding Spring Observatory. Photometric taxonomy wasused to classify the stars as dwarfs, giants, red-horizontal branchstars, and ultraviolet-bright stars, respectively. It is found that 35percent of the stars are giants; 50 percent are dwarfs; and 5 percentbelong to the red-horizontal branch group. The role of selection effectsin investigations of the formation of the Galaxy is discussed on thebasis of the photometric observations and the observational constraintsproposed by Eggen et al. (1962).
| Metal-Deficient Giants in the Galactic Field - Catalogue and Some Physical Parameters
Not Available
|
Добавить новую статью
Внешние ссылки
- - Внешних ссылок не найдено -
Добавить внешнюю ссылку
Группы:
|
Наблюдательные данные и астрометрия
| Созвездие: | Индеец |
| Прямое восхождение: | 20h30m28.50s |
| Склонение: | -45°31'16.5" |
| Видимая звёздная величина: | 10.166 |
| Собственное движение RA: | -25.3 |
| Собственное движение Dec: | -43.6 |
| B-T magnitude: | 10.892 |
| V-T magnitude: | 10.226 |
Каталоги и обозначения:
|
