בית     התחל מכאן     To Survive in the Universe    
Inhabited Sky
    News@Sky     תמונת אסטרו     האוסף     קבוצת דיון     Blog New!     שאלות נפוצות     עיתונות     כניסה  

HD 197189


תוכן

תמונות

הוסף תמונה שלך

DSS Images   Other Images


מאמרים קשורים

A catalogue of close binaries located in the δ Scuti region of the Cepheid instability strip
A catalogue of close eclipsing binary systems (detached andsemidetached) with at least one of the components located in the δScuti region of the Cepheid instability strip is presented. Thepositions of the stars in the instability strip are determined by theiraccurate temperatures and luminosities. Observationally detectedbinaries (20 semidetached, four detached and one unclassified) withoscillating components were included in the catalogue as a separatetable. The primaries of the oscillating Algols tend to be located nearthe blue edge of the instability strip. Using reliable luminosities andtemperatures determined by recent photometric and spectroscopic studies,we have found that at least one or two components of 71 detached and 90semidetached systems are located in the δ Scuti region of theCepheid instability strip. In addition, 36 detached or semidetachedsystems discovered by the Hipparcos satellite were also given as aseparate list. One of their components is seen in the δ Scutiregion, according to their spectral type or B - V colours. They arepotential candidate binaries with the δ Scuti-type pulsatingcomponents which need further photometric and spectroscopic studies inbetter precision. This catalogue covers information and literaturereferences for 25 known and 197 candidate binaries with pulsatingcomponents.

A catalogue of eclipsing variables
A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

Catalogue of Metal-Deficient F-Stars to M-Stars - Part One - Stars Classified Spectroscopically - Supplement One
Not Available

הכנס מאמר חדש


לינקים קשורים

  • - לא נמצאו לינקים -
הכנס לינק חדש


משמש של הקבוצה הבאה


תצפית ומידע אסטרומטרי

קבוצת-כוכבים:מיקרוסקופ
התרוממות ימנית:20h43m12.49s
סירוב:-32°17'35.4"
גודל גלוי:9.891
תנועה נכונה:0
תנועה נכונה:-3
B-T magnitude:10.357
V-T magnitude:9.93

קטלוגים וכינוים:
שם עצם פרטי   (Edit)
HD 1989HD 197189
TYCHO-2 2000TYC 7461-507-1
USNO-A2.0USNO-A2 0525-42741809
HIPHIP 102256

→ הזמן עוד קטלוגים וכינוים מוזיר