Contenuti
Immagini
Carica la tua immagine
DSS Images Other Images
Articoli relazionati
Observations of double stars and new pairs. XV The study reports visual and photographic measures listed for 1150 pairsobtained in the time frame 1989.91-1992.15, including 221 new doublestars. Magnitudes were estimated for a part of the objects, especiallythe fainter ones. Plate orientations were calculated from field stars ofknown positions and were precessed to the epoch; numbers of nights andof measured exposures are given. Reobservation of faint, neglected pairsreveal many corrections to the data from the old discovery lists.
|
Sottometti un nuovo articolo
Link relazionati
Sottometti un nuovo link
Membro dei seguenti gruppi:
|
Osservazione e dati astrometrici
Costellazione: | Ofiuco |
Ascensione retta: | 17h24m30.99s |
Declinazione: | +09°00'37.0" |
Magnitudine apparente: | 9.693 |
Moto proprio RA: | -2.5 |
Moto proprio Dec: | 11.3 |
B-T magnitude: | 10.33 |
V-T magnitude: | 9.746 |
Cataloghi e designazioni:
|