Contenuti
Immagini
Carica la tua immagine
DSS Images Other Images
Articoli relazionati
New Photoelectric Light Curves of AB Andromedae
Not Available
| Photoelectric observations of W UMa stars - U Pegasi and AB Andromedae
The quadratic ephemerides of the W UMa systems U Pegasi and ABAndromedae are computed from photoelectric and photometric data toanalyze the objects' periodicities. The minima obtained for the presentwork are incorporated into the minima obtained by Lafta and Grainger(1986) for the quadratic ephemerides calculation. U Pegasi is found tohave a decreasing period with a rate of change of -0.91 s/century, whileAB Andromedae increases steadily at 0.83 s/century, and the existence ofa third unseen object is postulated.
|
Sottometti un nuovo articolo
Link relazionati
Sottometti un nuovo link
Membro dei seguenti gruppi:
|
Osservazione e dati astrometrici
| Costellazione: | Andromeda |
| Ascensione retta: | 23h11m39.59s |
| Declinazione: | +36°47'40.7" |
| Magnitudine apparente: | 8.327 |
| Distanza: | 6666.667 parsec |
| Moto proprio RA: | 0 |
| Moto proprio Dec: | -26.1 |
| B-T magnitude: | 9.585 |
| V-T magnitude: | 8.431 |
Cataloghi e designazioni:
|
INHABITED SKY
