Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 328
... Reference 781247.861 " 022 Y ā FGS 3 16 present evidence that this goal for FGS astrometry has been met for the central 2.5 arcmin of FGS 3 . A test field was observed 40 times over 522 days to determine the precision of FGS astrometry ...
... Reference 781247.861 " 022 Y ā FGS 3 16 present evidence that this goal for FGS astrometry has been met for the central 2.5 arcmin of FGS 3 . A test field was observed 40 times over 522 days to determine the precision of FGS astrometry ...
Page 332
... reference frame are a last possible systematic effect . However , the average magnitude of the reference frame is V 15 ( Table 2 ) . Hence , the predicted parallactic and galactic rotation effects will be about half a millisecond of arc ...
... reference frame are a last possible systematic effect . However , the average magnitude of the reference frame is V 15 ( Table 2 ) . Hence , the predicted parallactic and galactic rotation effects will be about half a millisecond of arc ...
Page 418
... reference star for FGS transfer mode observing . This star is apparently single ā as far as can be determined from FGS observations ā pointlike , and unvarying in brightness . From the Upgren et al . reference , its magnitude is 9.58 ...
... reference star for FGS transfer mode observing . This star is apparently single ā as far as can be determined from FGS observations ā pointlike , and unvarying in brightness . From the Upgren et al . reference , its magnitude is 9.58 ...
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absorption abundance accretion analysis asteroids astrometry Astronomical Society binary bright calibration catalog central star chromospheric clouds color comets correction derived detection detector diagram disk distribution eclipse emission errors estimate evolution expansion velocities Fe/H field flux frame function galactic galaxies GCLF giant branch globular clusters H II regions Hyades indices infrared ionized km sĀ¹ light curve lines luminosity magnitude main sequence main-sequence mass measured MNRAS objects observations Observatory obtained open clusters optical orbital parameters PASP period phase photometric pixels planetary nebulae plotted quasars radial velocities radius range ratio red giants reddening redshift region residuals rotation sample scale scatter secondary solar sources spectral type spectroscopic spectrum standard stellar subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir