NASA发布30分钟太阳4K视频-前所未有的震撼-完整版[2160P/MP4/9.82GB]

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日前，美国国家航空航天局（NASA）公布了一段标题为“NASA Thermonuclear Art – The Sun In Ultra-HD”的太阳视频，这段长达30分钟的视频达到了惊人的4K画质，给人们带来一种前所未有的震撼！
这段视频画面由NASA的太阳动态观测卫星(SDO)拍摄。SDO于2010年2月11日发射，每天24小时对太阳进行观测。NASA介绍称，SDO捕捉到的画面涵盖了太阳10种不同的波长，每种都显示了太阳物质的不同温度。反过来，太阳物质的不同温度能标示太阳活动，如太阳耀斑、日冕环等。
太阳活动往往会对地球产生影响，耀斑和另一种名为日冕物质抛射的太阳风暴有时甚至能扰乱人类的太空活动。SDO拍摄的这些影像有助于研究者更好地理解保持太阳恒久运动的电磁系统的复杂性，让他们拥有了一个全新观察地球跟太阳关系的角度。
The Sun is always changing and NASA's Solar Dynamics Observatory is always watching. Launched on February 11, 2010, SDO keeps a 24-hour eye on the entire disk of The Sun, with a prime view of hte graceful dance of solar material coursing through The Sun's atmosphere, the corona.
SDO captures images of The Sun in 10 different wavelengths, each of which helps highlight a different temperature of solar material. Different temperatures can, in turn, show specific structures on The Sun such as solar flares, which are gigantic explosions of light and x-rays, or coronal loops, which are stream of solar material travelling up and down looping magnetic field lines.
Scientists study these images to better understand the complex electromagnetic system causing the constant movement on The Sun, which can ultimately have an effect closer to Earth, too. Flares and another type of solar explosion called coronal mass ejections can sometimes disrupt technology in space. Moreover, studying our closest star is one way of learning about other stars in the galaxy. NASA's Goddard Space Flight Center in Greenbelt, Md. built, operates, and manages the SDO spacecraft for NASA's Science Mission Directorate in Washington, D.C.

视频参数：

1. General
   
2. Complete name : NASA - Thermonuclear Art - The Sun in Ultra-High Definition (4K, H.264).mp4
   
3. Format : MPEG-4
   
4. Format version : Version 4/Version 2
   
5. File size : 9.82GiB
   
6. Duration : 30mn 24s
   
7. Overall bit rate mode: Variable
   
8. Overall bit rate : 46.2 Mbps
   
9. Encoded date : UTC 2016-02-06 06:28:16
   
10. Tagged date : UTC 2016-02-06 06:28:16
    
11. Writing application : HandBrake 0.10.2.2015060900
    
12. 
    
13. Video
    
14. ID : 1
    
15. Format : AVC
    
16. Format/Info : Advanced Video Codec
    
17. Format profile : High@L4.1
    
18. Format settings, CABAC : Yes
    
19. Format settings, ReFrames : 1 frames
    
20. Codec ID : avc1
    
21. Codec ID/Info : Advanced Video Coding
    
22. Duration : 30mn 24s
    
23. Bit rate : 45.8 Mbps
    
24. Width : 3840 pixels
    
25. Height : 2160 pixels
    
26. Display aspect ratio : 16:9
    
27. Frame rate mode : Variable
    
28. Frame rate : 59.940 fps
    
29. Minimum frame rate : 59.920 fps
    
30. Maximum frame rate : 59.960 fps
    
31. Color space : YUV
    
32. Chroma subsampling : 4:2:0
    
33. Bit depth : 8 bits
    
34. Scan type : Progressive
    
35. Bits/(Pixel*Frame) : 0.092
    
36. Stream size : 9.74 GiB (99%)
    
37. Writing library : x264 core 142 r2479 dd79a61
    
38. Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh/subme=7 / psy=1 /  psy_rd=1.00:0.10 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 /  deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18
    
39. Encoded date : UTC 2016-02-06 06:28:16
    
40. Tagged date : UTC 2016-02-06 06:28:16
    
41. Color range : Limited
    
42. Color primaries : BT.709
    
43. Transfer characteristics : BT.709
    
44. Matrix coefficients : BT.709
    
45. 
    
46. Audio
    
47. ID : 2
    
48. Format : AAC
    
49. Format/Info : Advanced Video Codec
    
50. Mode extension : LC
    
51. Codec ID : 40
    
52. Duration : 33mn 24s
    
53. Bit rate mode : Variable
    
54. Bit rate : 156 Kbps  
    
55. Channel(s) : 2 channels
    
56. Channel positions : Front: L R
    
57. Sampling rate : 48.0 KHz
    
58. Frame rate : 46.875 fps (1024 spf)
    
59. Compression mode : Lossy
    
60. Stream size : 33.9 MiB (0%)
    
61. Title : Stereo / Stereo
    
62. Language : English
    
63. Default : Yes
    
64. Alternategroup : 1
    
65. Encoded date : UTC 2016-02-06 06:28:16
    
66. Tagged date : UTC 2016-02-06 06:28:16
    
67. 
    
68. Audio
    
69. ID : 3
    
70. Format : AC-3
    
71. Format/Info : Audio Coding 3
    
72. Mode extension : CM (complete main)
    
73. Format settings, Endianness : Big
    
74. Codec ID : AC-3
    
75. Duration : 30mn 24s
    
76. Bit rate mode : Constant  
    
77. Bit rate : 224 Kbps  
    
78. Channel(s) : 2 channels
    
79. Channel positions : Front: L R
    
80. Sampling rate : 48.0 KHz
    
81. Frame rate : 31.250 fps (1536 spf)
    
82. Bit depth : 16 bits
    
83. Compression mode : Lossy
    
84. Stream size : 48.7 MiB (0%)
    
85. Title : Stereo / Stereo
    
86. Language : English
    
87. Default : No
    
88. Alternategroup : 1
    
89. Encoded date : UTC 2016-02-06 06:28:16
    
90. Tagged date : UTC 2016-02-06 06:28:16

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游客，如果您要查看本帖隐藏内容请回复

delta117

看起来不错

tutu2012

看起来不错

Silence

震撼！激动人心的画面

ufoefg

谢谢楼主分享

白石大人

从未如此震撼

suns96

什么神人都有，果断收藏

rxuan

谢谢分享。。。。

小时候

震撼，看起来不错

fanyongfu804975

谢谢楼主分享。