The MMT all-sky camera

被引：3
|
作者：
Pickering, T. E. [1 ]
机构：
[1] MMT Observ, Tucson, AZ 85721 USA
来源：
GROUND-BASED AND AIRBORNE TELESCOPES, PTS 1 AND 2 | 2006年 / 6267卷
关键词：
sky monitoring; all-sky imaging; observatory site conditions;
D O I：
10.1117/12.672508
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The MMT all-sky camera is a low-cost, wide-angle camera system that takes images of the sky every 10 seconds, day and night. It is based on an Adirondack Video Astronomy StellaCam II video camera and utilizes an auto-iris fish-eye lens to allow safe operation under all lighting conditions, even direct sunlight. This combined with the anti-blooming characteristics of the StellaCam's detector allows useful images to be obtained during sunny days as well as brightly moonlit nights. Under dark skies the system can detect stars as faint as 6th magnitude as well as very thin cirrus and low surface brightness zodiacal features such as gegenschein. The total hardware cost of the system was less than $3500 including computer and framegrabber card, a fraction of the cost of comparable systems utilizing traditional CCD cameras.
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页数：7
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