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

HD 108348


תוכן

תמונות

הוסף תמונה שלך

DSS Images   Other Images


מאמרים קשורים

GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies.
Not Available

GPM1 - a catalog of absolute proper motions of stars with respect to galaxies
The description of the first version of the General Compiled Catalogueof Absolute Proper Motions (GPM1) for a sample of HIPPARCOS stars,derived with respect to galaxies within the plan called Catalogue ofFaint Stars (KSZ, Deutch 1952), is presented. The principal aim of theGPM1 construction was to provide absolute proper motions of stars todetermine the rotation of the HIPPARCOS system. The GPM1 cataloguecontains 977 HIPPARCOS Input Catalogue stars with V magnitudes $5^m -11^m in 180 fields north of -25 degrees of declination. The accuracy ofthe proper motions is 8 mas/yr (milliarcseconds per year). Comparison ofproper motions of GPM1 with those of the PPM and ACRS was performed andanalyzed with respect to systematic errors caused by spurious rotationof the FK5 system. The standard errors show that the rotation may bedetermined with an accuracy better than 1 mas/yr. Catalog is onlyavailable in electronic form at the CDS via anonymous ftpcdsarc.u-strasbg.fr or ftp 130.79.128.5.

Narrow-band photometry of G and K stars near the North Galactic Pole
Photoelectric narrow-band photometry obtained for 292 late-type starsbrighter than 10 m in the North Galactic Pole area is discussed. The g,n, k, m, f-system of Dickow et al. (1970) is used. The stars were chosenfrom two lists: (1) all stars of spectral type G5 or later in the HenryDraper Catalog (Cannon and Pickering, 1918-1924) within 15 deg of theNorth Galactic Pole, together with a few BD stars; and (2) all starsclassified as K or M giants and in Upgren's 25-31 deg zones (Upgren,1962). For most of the stars, estimates of the following quantities arederived: V-magnitude, R-I color, metal abundance, MV, and theduplicity parameter res(k).

הכנס מאמר חדש


לינקים קשורים

  • - לא נמצאו לינקים -
הכנס לינק חדש


משמש של הקבוצה הבאה


תצפית ומידע אסטרומטרי

קבוצת-כוכבים:שערות ורוניקה
התרוממות ימנית:12h26m53.19s
סירוב:+14°02'37.6"
גודל גלוי:8.889
מרחק:243.309 פארסק
תנועה נכונה:-9.9
תנועה נכונה:-33
B-T magnitude:10.167
V-T magnitude:8.995

קטלוגים וכינוים:
שם עצם פרטי   (Edit)
HD 1989HD 108348
TYCHO-2 2000TYC 880-746-1
USNO-A2.0USNO-A2 0975-06962625
HIPHIP 60738

→ הזמן עוד קטלוגים וכינוים מוזיר