Abstract
view Abstract Citations (6) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Investigations on Proper Motion Oosterhoff, P. Th. Abstract Proper mctions of faint s2ars.-Examination of plates taken at intervals of about twenty-one years on 97 Selected Areas, including the - 15° declination zone, revealed 651 stars having proper motions between O~O~O and o'~726. By comparison with the Radcliffe Catalogue the probable error of a motion was found to be ±o'~oII. The per- centage of stars having proper motions larger than 0'~049 increases from o. 29 for galactic regions to 2.60 for high galactic latitudes. The amount of the mean motion decreases with magnitude, though for stars fainter than the thirteenth magnitude it remains constant. The antapex determined by Airy's method from the proper motions given in this paper and in Mt. Wilson Conir. No. 412 is A = ~ D= -4I~4. Mean parallaxes were computed for different groups of magnitude and proper motion by formulae given by van Maanen and Willis and by Seares. The discussion of the material is provisional, since the effects of selection have not been fully taken into account. A list of i6 variable stars found during this investigation is added Publication: The Astrophysical Journal Pub Date: May 1936 DOI: 10.1086/143730 Bibcode: 1936ApJ....83..340O full text sources ADS | data products SIMBAD (14)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
