Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939)

Details Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939) Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939)

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ycat.1006....0s&link_type=abstract

VizieR On-line Data Catalog: I/6. Originally published in: 1939HMSO..C......0S

Astronomy and Astrophysics

Astronomy

Positional Data, Proper Motions

Scientific paper

This catalog contains positions, precessions, proper motions, and photographic magnitudes for 20,554 stars. These were derived from photographs taken at the Royal Observatory, Cape of Good Hope between 1923 and 1928. It covers the astrographic zones -40 degrees to -52 degrees of declination. The positions are given for epoch 1900 (1900.0). It includes spectral types for many of the stars listed. It extends the earlier catalogs derived from the same plates to fainter magnitudes. The computer-readable version consists of a single data table.
The stated probable error for the star positions is 0.024 seconds of time (R.A.) and 0.25 seconds of arc (Dec.) for stars with one determination, 0.017 seconds of time, and 0.18 seconds of arc for two determinations, and 0.014 / 0.15 for stars with three determinations.
The precession and secular variations were derived from Newcomb's constants.
The authors quote probable errors of the proper motions in both coordinates of 0.008 seconds of arc for stars with one determination, 0.0055 seconds for stars with two determinations, and 0.0044 for stars with three.
The photographic magnitudes were derived from the measured diameters on the photographic plates and from the magnitudes given in the Cape Photographic Durchmusterung.
The spectral classification of the catalogued stars was done with the assistance of Annie Jump Cannon of the Harvard College Observatory.
The user should consult the source reference for more details of the measurements and reductions. See also the notes in this document for additional information on the interpretation of the entries.
(1 data file).

Affiliated with

Also associated with

No associations

Rating

Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cape Catalog of 20554 Faint Stars, -40 to -52° (Spencer Jones+ 1939) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1619885