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

HD 195991


Contenuti

Immagini

Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

Lists of photometric AM candidates
The Geneva photometric m parameter (Nicolet and Cramer, 1982) is used inorder to select Am photometric candidates from the Rufener (1981)catalogue. Two lists are given, the first containing field stars and thesecond cluster stars. According to the photometric criteria thediffusion process probably responsible for the Am phenomenon takes placerather quickly as Am candidates are present in young clusters. It isconfirmed that the phenomenon is enhanced by low rotational velocity andhigh metallicity. The age seems to slightly affect the Am phenomenon.

Properties of AM stars in the Geneva photometric system
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980A&A....92..289H&db_key=AST

Multicolor photometry of metallic-line stars. III. A photometric catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..175M&db_key=AST

Catalogue of AM stars with known spectral types
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS...10..385H&db_key=AST

Classification des spectres de 112 d'étoiles A et F dont 89 d'étoiles AM
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1....7B&db_key=AST

Catalogue et bibliographie des étoiles A à spectre particulier - Deuxième supplément
Not Available

Thirty-seven New Peculiar and Metallic-Line A Stars
Not Available

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:20h33m15.11s
Declinazione:+35°59'21.9"
Magnitudine apparente:8.866
Distanza:301.205 parsec
Moto proprio RA:18.8
Moto proprio Dec:16.7
B-T magnitude:9.214
V-T magnitude:8.895

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 195991
TYCHO-2 2000TYC 2698-1252-1
USNO-A2.0USNO-A2 1200-15314505
HIPHIP 101426
→ Richiesta di ulteriori cataloghi da VizieR