本帖最后由 steveyzh 于 2013-3-30 21:15 编辑
作者说明:http://www.cloudynights.com/ubbt ... /sb/5/o/all/fpart/1
原始Ha,SII,OIII叠加后FITS网盘链接16Mb(32位的,要先存为16位Fits,Maxim DL才能打开)
声明:版权归KEVIN@CN所有。
练习处理结果如下,有兴趣的同好可以下载练手:
望远镜Optics/Mount: CPC1100 with f6.3 Celestron reducer on a Milburn Wedge. Dec antibacklash set to 27/27. PEC on.
冷冻CCD Camera: SXVR-H694
曝光时间Exposure: 18 hours total, 70 x 5 minutes Ha, 68 x 5 minutes OIII, 78 x 5 minutes SII, all bin 2x2
滤镜Filters: Astrodon 5nm Ha and SII and 3nm OIII
日期Date: 8 nights from November 17, 2012 – February 14, 2013
自动拍摄软件Imaging automation and capture: Sequence Generator Pro
导星设备Guiding Hardware: Flea 3, Taurus Tracker III off axis guider. Guiding scale 0.72 arcsec/pixel. 1 second guide exposures.
导星软件Guiding Software: PHD. Aggressiveness 80, Hysteresis 0, Minimum Move 0.9, Max RA 1000, Max Dec 600. Dec set to auto/resist switching. Dithering set to Extreme with Settle < 1.2.
导星精度数据Guiding performance: HFR of subs range from 1.2 – 1.9 arc seconds in varying seeing conditions
对焦Focusing: Rigel Systems GCUSB/nStep on stock C11 focuser
光污染程度Light pollution: Bortle 8 (white zone, NELM about mag 4.5裸眼极限星等)
图片分辨率Image scale at capture: 1.2 arcsecs/pixel bin 2x2 = f/5.7
Scale of presentation: 1.2 arcsecs/pixel (50%)
作者处理软件Processing: Bad pixel map in Nebulosity 2, stacked with Deep Sky Stacker, post-processed with Photoshop CS2.
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