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Intermediate and narrow band photometry of newly discovered CP 2 stars
From Bidelman's list (1983) of northern stars of astrophysical interesteleven chemically peculiar early type (CP2) stars were photometricallyinvestigated to check the reported CP2 character by means of the Delta-aphotometry and to obtain Stroemgren and H-beta values. The CP2 characterof all stars is verified, in one case the star belongs to a hottersubgroup than reported. One star (BD + 24 deg 3675) turns out to bevariable and shows the largest Delta-a value ever measured. Besidesthis, two stars from the Bright Star Catalogue were found to be CP2stars.
| Objective-prism discoveries in the northern sky. I
Attention is given to 175 northern hemisphere stars whose newlyrecognized peculiar, or otherwise prepossessing characteristics havebeen noted in a preliminary inspection of moderate dispersion objectiveprism plates. The plates were obtained with a 10-deg prism. The starlist gives HD or BD, alpha and delta values, magnitude, and type.
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Osservazione e dati astrometrici
| Costellazione: | Triangolo |
| Ascensione retta: | 02h21m20.02s |
| Declinazione: | +28°04'15.9" |
| Magnitudine apparente: | 8.799 |
| Moto proprio RA: | 4.2 |
| Moto proprio Dec: | -5.2 |
| B-T magnitude: | 9.105 |
| V-T magnitude: | 8.825 |
Cataloghi e designazioni:
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