Home     Per cominciare     Sopravvivere Nell'Universo    
Inhabited Sky
    News@Sky     Astro Foto     La collezione     Forum     Blog New!     FAQ     Stampa     Login  

HD 208685


Contenuti

Immagini

Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

The improvement of the star positions of the Potsdam PZT catalog
Regular determinations of the right ascension and declination of starswith the aid of a photographic zenith tube (PZT) were begun in ageodetic-astronomical observatory of the German Democratic Republic in1972. Results obtained during the years 1972 and 1973 were used for afirst improvement of stellar positions listed in the Third Catalog(Katalog) of the 'Astronomische Gesellschaft' (Astronomical Society)AGK3. The corrections resulted in a distinct improvement of the accuracyof the positional values. However, the possibility could not be excludedthat the results were still affected by remaining errors with systematiccharacteristics. In order to eliminate the considered deficiencies, newstellar coordinate corrections were computed on the basis of aconsiderably larger data set. The new catalog containing the reviseddata has been called PZT 80, while the data obtained on the basis of thefirst observations are listed in PZT 74. The new catalog is presented inthe appendix.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:21h56m35.07s
Declinazione:+52°31'44.4"
Magnitudine apparente:8.602
Distanza:427.35 parsec
Moto proprio RA:5
Moto proprio Dec:-4
B-T magnitude:8.642
V-T magnitude:8.606

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 208685
TYCHO-2 2000TYC 3968-1492-1
USNO-A2.0USNO-A2 1425-12548834
HIPHIP 108314

→ Richiesta di ulteriori cataloghi da VizieR