בית     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     תמונת אסטרו     האוסף     קבוצת דיון     Blog New!     שאלות נפוצות     כניסה  
→ Adopt this star  

HD 211732


תוכן

תמונות

הוסף תמונה שלך

DSS Images   Other Images


מאמרים קשורים

Improvement of Hipparcos Proper Motions in Declination
More than a decade elapsed after the HIPPARCOS ESA mission (ESA 1997)observations have been collected. This first astronomical satellitemission was less than 4 years long so that 1991.25 is the epoch of theHIPPARCOS Catalogue. Many other projects have checked or improvedHIPPARCOS data. Also, a long series of ground - based opticalobservations of some stars included in HIPPARCOS Catalogue, made withPhotographic Zenith Tubes (PZT) are useful for the task of improving theproper motions of these stars. The ARIHIP Catalogue (after ACT, TYCHO -2, FK6, GC+HIP, TYC2+HIP) is a combination of the HIPPARCOS and someground - based data, and the ARIHIP proper motions are more accuratethan the HIPPARCOS ones. Here we present a new step of our procedure ofcalculation; between PZT data we added the HIPPARCOS position withsuitable weight - the point with the coordinates (1991.25, 0ŭ0)in our case. The method was applied to 202 stars observed at RichmondPZTs in the course of a few decades. The result is better proper motionsin declination for these HIPPARCOS stars, and a good agreement withARIHIP proper motions (we found 128 common Richmond and ARIHIP stars tocheck our result). Also, we present the result for other 74 Richmondstars which are not found in ARIHIP.

Modeling Visual Photometry I: Preliminary Determination of Visual Bandpass
This paper addresses the issue of spectral sensitivity as part of theoverall visual model. A mathematical theory and observational method arepresented for the determination of color coefficient with error term foran individual observer.

UBV Photometry of 173 PZT Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971PASP...83..177W&db_key=AST

הכנס מאמר חדש


לינקים קשורים

  • - לא נמצאו לינקים -
הכנס לינק חדש


משמש של הקבוצה הבאה


תצפית ומידע אסטרומטרי

קבוצת-כוכבים:פגסוס
התרוממות ימנית:22h18m45.07s
סירוב:+25°46'26.6"
גודל גלוי:7.702
מרחק:145.349 פארסק
תנועה נכונה:35
תנועה נכונה:-1.1
B-T magnitude:7.964
V-T magnitude:7.724

קטלוגים וכינוים:
שם עצם פרטי
HD 1989HD 211732
TYCHO-2 2000TYC 2209-518-1
USNO-A2.0USNO-A2 1125-19224244
HIPHIP 110152

→ הזמן עוד קטלוגים וכינוים מוזיר