
Near side:

More images:
http://lilacsat.hit.edu.cn/dashboard/pa ... ics-b.html
I have found no technical details of the camera so far.
This image from Parker Solar Probe's WISPR (Wide-field Imager for Solar Probe) instrument shows a coronal streamer, seen over the east limb of the Sun on Nov. 8, 2018, at 1:12 a.m. EST.
WISPR will observe the Thomson-scattered light from the solar wind electrons. This
scattering process has a sensitivity dependence on the geometry between the Sun, observer and scattering electron. Vourlidas and Howard (2006) have shown that the observing geometry must be taken into account for the proper interpretation of coronagraph and heliospheric imager observations.
Understanding radiative processes, and the interaction of photons with matter, it is important to realize that all photon emission mechanisms arise from accelerating electrical charge.
A photo taken at 11:40 a.m. and sent back by Chang'e 4 shows a small crater and a barren surface that appears to be illuminated by a light from the lunar explorer.
GaryN wrote:A photo taken at 11:40 a.m. and sent back by Chang'e 4 shows a small crater and a barren surface that appears to be illuminated by a light from the lunar explorer.
https://phys.org/news/2019-01-china-pro ... state.html
Why would they need a light from the explorer when they are in full sunlight? Images from the Apollo missions also had people claiming that a light had been used as there is bright centre and a strong fall off of the illumination at the edges of the photo, but in looking into this it would seem that the angle of the Sun WRT the camera will produce this effect due to the strong backscatter of the surface material. The Sun would be behind the camera, looking over its shoulder, so to speak.
There is no lighting from the explorer, just your assumption,
There are no verifiable conclusions about the true range of color in visible light on the lunar surface and the effect of human visual perception. On the other hand, the change in light conditions on the lunar surface, camera imaging angle, distribution of lunar surface rocks and minerals, the composition of material in lunar soil and other factors will cause differences in color images taken on the lunar surface. Hence, it is difficult to judge the true color of the lunar surface environment from PCAM and TCAM images.
Return to New Insights and Mad Ideas
Users browsing this forum: No registered users and 2 guests