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

HD 45324


Contenuti

Immagini

Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

New periodic variables from the Hipparcos epoch photometry
Two selection statistics are used to extract new candidate periodicvariables from the epoch photometry of the Hipparcos catalogue. Theprimary selection criterion is a signal-to-noise ratio. The dependenceof this statistic on the number of observations is calibrated usingabout 30000 randomly permuted Hipparcos data sets. A significance levelof 0.1 per cent is used to extract a first batch of candidate variables.The second criterion requires that the optimal frequency be unaffectedif the data are de-trended by low-order polynomials. We find 2675 newcandidate periodic variables, of which the majority (2082) are from theHipparcos`unsolved' variables. Potential problems with theinterpretation of the data (e.g. aliasing) are discussed.

Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Cane Maggiore
Ascensione retta:06h26m09.36s
Declinazione:-15°07'12.4"
Magnitudine apparente:8.886
Distanza:1369.863 parsec
Moto proprio RA:-1.2
Moto proprio Dec:1.1
B-T magnitude:8.914
V-T magnitude:8.889

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 45324
TYCHO-2 2000TYC 5947-340-1
USNO-A2.0USNO-A2 0675-03139577
HIPHIP 30625

→ Richiesta di ulteriori cataloghi da VizieR