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

HD 199133


Contenuti

Immagini

Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

A photometric study of wide visual double stars. II - Common proper motion double stars
A total of 82 common proper motion wide visual double stars have beenobserved using the uvby, H-beta systems. MK class, color excess,absolute magnitude, effective temperature, and distance have beenderived from calibrations of the above systems. From the distancesderived here and the astrometric data, taken from the literature, it wasfound that the percentage of physical binaries among the common propermotion wide double stars is significantly higher than the samepercentage among the wide visual double stars with significant relativeproper motion, but there are a lot of optical pairs among them as well.

A second list of wide visual binaries
Not Available

A second list of wide visual binaries
Not Available

Visual measurements of southern double stars. II
A group of 248 micrometric observations of 104 double stars arepresented, forming the second series of a program carried out at Cordobawith a 30 cm refractor. Usually neglected IDS pair south of -60 deg areselected for observation, most of them having been measured only one ortwo times previously. The measurements are compared with all the earlierobservations to derive estimates for the personal equation in P.A. andseparation, and the nature of many pairs is discussed by making use ofcatalog proper motions.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Ottante
Ascensione retta:21h01m23.76s
Declinazione:-75°25'29.7"
Magnitudine apparente:8.312
Distanza:229.885 parsec
Moto proprio RA:26.6
Moto proprio Dec:-18.3
B-T magnitude:8.65
V-T magnitude:8.34

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 199133
TYCHO-2 2000TYC 9461-1988-1
USNO-A2.0USNO-A2 0075-06722503
HIPHIP 103745

→ Richiesta di ulteriori cataloghi da VizieR