摄影新人- 又有猛人贴 Jon Talbot

果然是一山比一山高啊...Jon拍的NGC891共花了23小时的曝光, 照片里最暗的星系接近20星等. 看看你能找到几个?

http://www.starscapeimaging.com/NGC891_Dec07.html

转过来：
Image Details Optics : StellarvueSV90T Triplet Refracter Mount: Mountain Instruments MI-250 Camera: Starlight XpressSXV-H9 w/True Tech Supra Slim filter wheel Filters: Astronomik Type 2C LRGB filter set Exposure: 230:414:360:403 for a total of 23.4hrs Camera/Mount Control: Maxim DL 4.56, CCD Commander Location: Stark Bayou Observatory, Ocean Springs, MS Date: November-December 2007