圣诞到了，发几张应景的图

圣诞到了，大家都踊跃发帖灌水，我也不甘心闲着，给大家发些应景的图。
先来张Tony Hallas的杰作，圣诞树星团附近天区的全景，图中包括了圆锥星云，狐狸皮星云，雪花星团和圣诞树星团

                               
登录/注册后可看大图

Cone
LRGB Ha
Ha 1500 x 10  2 x 2
L   7 x 900   1 x 1
R   7 x 900   2 x 2
G   7 x 900   2 x 2
B   7 x 900   2 x 2

Luminance 33 %
Ha 66 %
RGB 66 %
Ha as red 33 %
Astro-Physics 206mm  f / 8 Refractor
Camera : Apogee 16803 with filter wheel
Mega Moag used for off-axis guiding
Filters : Astrodon 50mm square Gen II
A/P 1200 GTO mount
Taken Dec. 2008 from Foresthill, CA

再来张特写

                               
登录/注册后可看大图

这是由著名天文摄影师Russell Corman拍摄的

Technical Details
Optics:	20" f/8 RCOS Ritchey-Chrétien Cassegrain w/ Field Corrector.
Mount:	Software Bisque Paramount ME.
Camera:	SBIG STL-11000XM.
Filters:	SBIG Standard RGB.
Dates/Times:	12 January 2005.
Location:	Dimension Point Observatory, Mayhill, New Mexico.
Exposure Details:	LRGB = 165:30:30:45 minutes (15-minute individual exposures).
Acquisition:	MaxIm DL/CCD 4, TheSky6, CCDAutoPilot2.
Processing:	MaxIm DL/CCD 4, Photoshop CS.

还不过瘾？来张更给力的：

                               
登录/注册后可看大图

Technical Details
Optics:16" cassegrain in secondary focus at f/10


Mount:MK-100 GEM
Camera:SBIG STL-11000M at -25C, 8-pos filter wheel
Filters:Baader LRGB
Date:Feb 19, 2009.
Location:Wildon/Austria
Sky Conditionsmag 5.5 sky, FWHM 2.5-3.4", temperature -5 C
Exposure L:R:G:B = 150:80:80:80 min (20 min subs)Programs used Maxim DL 4.5;
CCDStack
Fitsliberator
Photoshop CS3

还有一张广角

                               
登录/注册后可看大图

Technical Details
Optics：16" cassegrain in corrected primary focus at f/3
Mount：MK-100 GEM
Camera：SBIG STL-11000M at -30C, internal filter wheel
Filters：Astronomik Ha
Date：Feb 13 + 28, 2005.
LocationWildon/Austria Sky Conditions mag 5 sky, temperature -10 C, Moon up
Exposure
Ha = 150 minutes (15 minute sub-exposures),
O-III = 60 min (10 minute subs)
blue = 15 min (5 min subs).(ProcessingImage aquisition and color combine in Maxim, image calibration, aligning, DDP in ImagesPlus;
H-alpha 50% as L and 100% as red channel, O-III assigned to green, blue as blue channel. curves, unsharp mask in Photoshop; Noise reduction by Neatimage for dark areas;
north is right;
（以上两张版权归panther observatory所有）


再来一张Adam Block在亚利桑那大学Mount Lemmon SkyCenter拍摄的狐狸皮星云的巨大特写，很喜欢这淡淡的蓝色，显得超凡脱俗

                               
登录/注册后可看大图

Picture Details:

• Optics             24-inch RC Optical Systems Telescope
• Camera           SBIG STL11000 CCD Camera
• Filters              Custom Scientific
• Dates               January 28th-29th, 2009
• Location          Mount Lemmon SkyCenter
• Exposure          LRGB = 250:80:80:80 minutes
• Acquisition       ACP Observatory Control Software (DC-3 Dreams), TheSky (Software Bisque), Maxim DL/CCD (Cyanogen)
• Processing        CCDStack (CCDWare), Mira (MiraMetrics), Maxim DL (Cyanogen), Photoshop CS3 (Adobe)
• Credit Line and Copyright        Adam Block/Mount Lemmon SkyCenter/University of Arizona

天气这么冷，同好们要多多回帖，活动手指呀！

创个沙发

唉,摄影,路漫长啊

漂亮！！第一张很美~~

我的个乖乖!!!!

漂亮，咱坛子里的高手拍这些也都一样好。

不错不错，顺祝大家圣诞快乐