Contingut
Imatges
Carregar la teva Imatge
DSS Images Other Images
Articles Relacionats
Radial-velocity measurements. V - Ground support of the HIPPARCOS satellite observation program
The paper presents data on 1070 radial velocity measurements of starsdistributed in 39 fields measuring 4 deg x 4 deg. The PPO series ofFehrenbach et al. (1987) and Duflot et al. (1990) is continued using theFehrenbach objective prism method.
| New UBVRI photometry for 900 supergiants
A description is presented of the results obtained in connection with asystematic program of supergiant photometry on the Johnson UBVRI system.During the eight years after the start of the program, almost 1000 starshave been observed, about 400 three or more times each. The originalselection of stars used the spectral type catalog of Jaschek et al.(1964) to choose supergiants. Since observations were possible from bothChile and Canada, no declination limits were imposed, and no particularselection criteria were imposed other than to eliminate carbon stars.These are so red as to require enormous extrapolations of thetransformation equations.
| Spectral Classification of Stars Noted on Case Objective-Prism Plates. I
Not Available
| A Finding List of F Stars of High Luminosity.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1952ApJ...115..475N&db_key=AST
|
Enviar un nou article
Enllaços Relacionats
- - No s'ha trobat enllaços -
Enviar un nou enllaç
Membre dels grups següents:
|
Dades d'Observació i Astrometria
| Constel·lació: | Aquila |
| Ascensió Recta: | 19h07m39.80s |
| Declinació: | +15°30'32.3" |
| Magnitud Aparent: | 8.257 |
| Distancia: | 132.275 parsecs |
| Moviment propi RA: | 38.6 |
| Moviment propi Dec: | 8.6 |
| B-T magnitude: | 8.946 |
| V-T magnitude: | 8.314 |
Catàlegs i designacions:
|
