Главная     Введение     Выжить во Вселенной    
Inhabited Sky
    News@Sky     Астрофотография     Коллекция     Форум     Blog New!     Помощь     Пресса     Войти  

HD 43789


Оглавление

Изображения

Загрузить ваше изображение

DSS Images   Other Images


Публикации по объекту

Spectroscopic analysis of southern B and Be stars
Spectroscopic monitoring of 141 southern field B-type stars, 114 of themknown to exhibit the Be phenomenon, allowed the estimation of theirprojected rotational velocities, effective temperatures and superficialgravities from both line and equivalent width fitting procedures.Stellar ages, masses and bolometric luminosities were derived frominternal structure models. Without taking into account the effects ofgravity darkening, we note the occurrence of the Be phenomenon in laterstages of main-sequence phase.

A Catalogue of Be-Stars
Not Available

Observations of southern emission-line stars
A catalog of 1929 stars showing H-alpha emission on photographic platesis presented which covers the entire southern sky south of declination-25 deg to a red limiting magnitude of about 11.0. The catalog providesprevious designations of known emission-line stars equatorial (1900) andgalactic coordinates, visual and photographic magnitudes, H-alphaemission parameters, spectral types, and notes on unusual spectralfeatures. The objects listed include 16 M stars, 25 S stars, 37 carbonstars, 20 symbiotic stars, 40 confirmed or suspected T Tauri stars, 16novae, 14 planetary nebulae, 11 P Cygni stars, 9 Bep stars, 87 confirmedor suspected Wolf-Rayet stars, and 26 'peculiar' stars. Two new Tassociations are discovered, one in Lupus and one in Chamaeleon. Objectswith variations in continuum or H-alpha intensity are noted, and thedistribution by spectral type is analyzed. It is found that the skydistribution of these emission-line stars shows significantconcentrations in the region of the small Sagittarius cloud and in theCarina region.

Добавить новую статью


Внешние ссылки

  • - Внешних ссылок не найдено -
Добавить внешнюю ссылку


Группы:


Наблюдательные данные и астрометрия

Созвездие:Корма
Прямое восхождение:06h15m56.56s
Склонение:-44°37'10.7"
Видимая звёздная величина:8.546
Расстояние:729.927 парсек
Собственное движение RA:-9.7
Собственное движение Dec:12
B-T magnitude:8.433
V-T magnitude:8.537

Каталоги и обозначения:
Собственные имена   (Edit)
HD 1989HD 43789
TYCHO-2 2000TYC 7624-372-1
USNO-A2.0USNO-A2 0450-02526812
HIPHIP 29753

→ Запросить дополнительные каталоги и обозначения от VizieR