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

TYC 9428-543-1 (NX Aps)


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.

Stars with the Largest Hipparcos Photometric Amplitudes
A list of the 2027 stars that have the largest photometric amplitudes inHipparcos Photometry shows that most variable stars are all Miras. Thepercentage of variable types change as a function of amplitude. Thiscompilation should also be of value to photometrists looking forrelatively unstudied, but large amplitude stars.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Uccello del Paradiso
Ascensione retta:14h56m41.80s
Declinazione:-75°19'04.2"
Magnitudine apparente:11.41
Moto proprio RA:-4.1
Moto proprio Dec:-11.9
B-T magnitude:11.771
V-T magnitude:11.44

Cataloghi e designazioni:
Nomi esattiNX Aps
  (Edit)
TYCHO-2 2000TYC 9428-543-1
USNO-A2.0USNO-A2 0075-04564024
HIPHIP 73122

→ Richiesta di ulteriori cataloghi da VizieR