Procedure for Aligning Heidenhain Encoder Heads 10/03/2007 11:21 AM OP - 99011 SDSS Technical Procedure Procedure for Aligning Heidenhain Encoder Heads W. Boroski Revised 3/1/99 SCOPE This procedure is applicable to work on the SDSS 2.5- meter telescope and describes the steps necessary to align a Heidenhain LIDA 18C or ERA 880C angle encoder scanning head with a LIDA steel scale tape. ... Set the phase meters output signals. ... Check the phase and amplitude of the reference mark signal. ...

Fred Ewalt image: . I revisted my series of 5 raw images on SN1999gp. The attached UGC 1993 field image is the summation of five co-aligned and added one minute raw exposures (vice averaged, which was used for the processed image I submitted yesterday). ... The probable Foreground Star, SN1999gp and the Nucleus of UGC 1993 are all apparent in this field image. The second "Inset - A image", I blew up and normalized to the same pixel count as the field image. ... Back to 1999gp . ...

... A Portable Human-Powered Orrery The scale of our model is 1 m = 1 AU. ... Relative positions of the planets in the night sky ­ Having the person representing the Earth and the other planets discuss their positions in the sky and when they can be seen (only at night) Predicting the night sky ­ Looking at the locations of the planets relative to the constellations to predict what they will see when they go out after sunset to observe the real sky Revolution of the ...

... Up: Data Analysis Applications . ... Pixlib, an AXAF Science Center (ASC) coordinate library, has been developed as the continuing effort of (He 1997). ... In this paper, we will discuss the design and the configuration of the pixlib system, and show, as an example, how to integrate the library into ASC data analysis at XRCF. ... The following two functions, in addition to other generic configurations, effectively supply the system configuration for coordinate transformation at XRCF. ...

... Имеется прогресс и в других отраслях науки, в том числе и в космогонии - науке о происхождении и эволюции космических тел и их систем, в том числе Солнечной системы. ... Чуть ли не каждый исследователь (астроном, небесный механик, физик, математик и т.д.) отвергает все существующие космогонические гипотезы и создает свою собственную. ... Автор предлагает вниманию читателей еще одну гипотезу происхождения и развития Солнечной Системы во Вселенной, бесконечной в пространстве и во времени. ... Автор . ...

... Submitted by Gary Phillips on 05/09/2015 21:15:06 . 06May15 star trail . ... Here is the special thing- I aligned the mount to near the zenith (fictitious pole), not the North Celestial Pole. My backyard zenith view with my 14 mm lens clips trees all the way around, so I aligned the mount to rotate around the unobstructed view, so the trees would spin around the perimeter of the image. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Молекулярно-пучковая эпитаксия и исследование фундаментальных физических свойств низкоразмерных полупроводниковых гетероструктур (квантовых ям, серхрешеток, квантовых точек) на основе: . ... широкозонных полупроводниковых соединений А 2 В 6 , а также ZnO, для оптоэлектроники видимого и УФ спектрального диапазона и фундаментальных исследований в области спинтроники; . А 3 -нитридов для оптоэлектронных применений в видимой и УФ области спектра, а также для исследований в области плазмоники. ...