AN EXPOSURE GUIDE FOR TAKING TWILIGHT FLATFIELDS WITH LARGE FORMAT CCDS

被引：22

作者：

TYSON, ND ^{[1
]}

GAL, RR ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT ASTRON,NEW YORK,NY 10027

来源：

ASTRONOMICAL JOURNAL | 1993年 / 105卷 / 03期

关键词：

D O I：

10.1086/116505

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Driven by the long readout times of today's large format CCDs, we present an efficient method to compute an ideal sequence of exposure times for twilight skyflats. The procedure will allow the observer to maximize the number of flats that can be obtained in the rapidly changing surface brightness of the dusk or dawn sky.

引用

页码：1206 / 1212

页数：7