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

HD 115431


Contenuti

Immagini

- Nessuna immagine trovata -
Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

CCD astrometry and instrumental Delta-V photometry of wide visual double stars. III - Differential measurements of often observed southern pairs
We present accurate relative positions and instrumental visual (BesselV) magnitude differences of southern wide star components. The meanaccuracy of the angular separation is 0.02 arcsecs, which corresponds to1.5 micron on the CCD chip, and of magnitude difference 0.007mag/exposure. The program pairs are targets of the HIPPARCOS mission andthey have been observed at least four times in the last 150 yrs.

CCD measurements of visual binaries
CCD measurements of visual double stars were obtained with the ESO 1.5 mdanish reflector. All binaries observed are candidates for the HIPPARCOSInput Catalogue. More than 400 observations have been made in four clearnights. The accuracy obtained is comparable to the accuracy of thephotographic technique, but the observing and reduction times are oneorder of magnitude smaller.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Centauro
Ascensione retta:13h17m38.24s
Declinazione:-37°01'02.0"
Magnitudine apparente:7.56
Distanza:170.358 parsec
Moto proprio RA:-34
Moto proprio Dec:-7.9
B-T magnitude:7.721
V-T magnitude:7.574

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 115431
TYCHO-2 2000TYC 7275-1624-1
USNO-A2.0USNO-A2 0525-15995914
HIPHIP 64859

→ Richiesta di ulteriori cataloghi da VizieR