摘要
用目视和底片密度扫描的办法从帕洛玛巡天底片得到天体星等资料已有许多作者讨论过，其结果得到广泛的应用．考虑到帕洛玛底片已经数字化并做出了数字化巡天光盘（ＤＳＳ），若从它直接得到测光资料将更为方便，为此，我们发展了直接从ＤＳＳ中得到北天天区天体（δ３°）Ｅ或Ｖ星等的软件，其测量Ｅ星等的精度为０．３７ｍ（１３．５ｍＥ１８．０ｍ），Ｖ星等的精度为０．４２ｍ（１４．４ｍＶ１８．９ｍ）．
Many attempts have been made at getting magnitudes of celestial bodies by utilizing the Palomar Sky Survey plates. Visual and plate-density scanning methods are the two main ways which have already been discussed and applied widely. Since the plates have been digitized, and the Digitized Sky Survey (DSS) discs are available now, it will be more convenient to estimate the magnitude information from the DSS directly. We have developed a program for deriving celestial bodies' E or V magnitudes from the DSS. The rms for E and V magnitude determination are 0.37 m(13.5 mE18.0 m) and 0.42 m(14.4 mV18.9 m) respectively.
基金
国家自然科学基金
中国科学院光学联合实验室资助
