... Class 5: Suburban sky. Only hints of the zodiacallight are seen on the best spring and autumn nights. ... Class 6: Bright suburban sky. No trace of the zodiacallight can be seen, even on the best nights. ...
... Science targets are: AGB stars; AGN; direct detection of brown dwarfs and hot Jupiters; exo-zodiacallight 6.2 Wide-angle astrometry: Done by Mark III (closed down), NPOI and SIM Aim is to maintain the Hipparcos reference frame Accuracy is 2 mas over ...
[
Текст
]
Ссылки http://www.atnf.csiro.au/whats_on/workshops/synthesis2001/material/opticalint_extra.pdf -- 227.3 Кб -- 15.01.2002 Похожие документы
... background' photons arriving at rate b For an optical system this background is not stray light, but sky and or/zodiacal scattered light coming from the same direction as source r There is noise associated with readout of the CCD, which is independent of ...
... been so full so as to be difficult to find, the band of the Milky Way cascading from horizon to horizon, and the occasional surprise when the glow of the ghostly zodiacallight showed itself just after sunset in the spring or before sunrise in the fall ...
... OCT. 26 -- MONDAY * Have you ever seen the zodiacallight? ... The zodiacallight is an enormous, tall, pearly pyramid standing above the eastern horizon, tilted slightly to the right and ...
... space-exposed surfaces, hypervelocity impact and particle capture, atmospheric entry heating of micrometeoroids, infrared imaging of the zodiacallight and electron microscopy of interplanetary dust particles.б Love moved to the University of Hawaii in ...