... to noise, lack of intrinsic moon glow gradients, and least number of startrails ... The 3 peaks below row 400 are from startrails in this image. ... 50 columns were averaged here owing to the large number of startrails in this image ...
... For sufficiently bright sources (usually mV < 10), the sampling of the star on the slit can be improved by trailing the star across the slit during the exposure. ...
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Ссылки http://www.apo.nmsu.edu/35m_operations/35m_manual/Instruments/Echelle/PDF/echelle_quickstart.pdf -- 297.4 Кб -- 22.05.2005 Похожие документы
... star cannot be measured, continue on to the next star, but pause at the very end if ... Stars : add all stars from Missing Stars (except those in Stars to Skip ) to Stars ...
... The ACT contains 93% of the Tycho catalog stars. ... The lower the surface density of these stars on the sky, the more stringent the ... Consequently, it is useful to know the surface density distribution of Tycho stars. ...
... to a fairly bright (for the instrument) isolated star high in the sky and near the ... Leading and trailing lines that do not begin with digits will be ignored. boresight ...
... Four images were obtained from each focus sweep; 1) CCD g1, at the trailing corner of the CCD array; 2) CCD g3, near the middle of the trailing edge; 3) CCD u1, at the edge of the central row of CCDs; 4) CCD u3, near the center of the CCD array. ...
... a position reference star near the target, and slew to center the reference star in ... star nearest the position specified by the TRACK command (or the current object if ...
... Use a standard star to define approximate aperture locations and traces, then extract desired orders from the standard star using noao.imred.echelle.apall. ...
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Ссылки http://www.apo.nmsu.edu/35m_operations/35m_manual/Instruments/Echelle/PDF/ARCES_data_guide.pdf -- 410.4 Кб -- 25.09.2000 Похожие документы