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Galactic S Stars: Investigations of Color, Motion, and Spectral Features
Galactic S Stars: Investigations Motion Spectral Features
2011/10/12
Known bright S stars, recognized as such by their enhanced s-process abundances and C/O ratio, are typically members of the asymptotic giant branch (AGB) or the red giant branch (RGB). Few modern digi...
Measurement of Double Stars with a CCD Camera：Two Methods。
A spectral atlas of Landolt stars for a reliable mid-IR spectrophotometric calibration for large telescopes
Landolt stars telescopes mid-IR spectrophotometric calibration
2009/6/12
A spectral atlas of Landolt stars for a reliable mid-IR spectrophotometric calibration for large telescopes。
CCD OBSERVATIONS OF VISUAL DOUBLE AND MULTIPLE STARS AT THE BELGRADE OBSERVATORY
MULTIPLE STARS CCD measurements Belgrade Large Refractor ST-6 camera
2009/3/19
The author presents her CCD measurements of 105 double and
multiple stars performed with a ST-6 camera on the Belgrade Large Refractor (Zeiss
65/1055 cm).
PHOTOGRAPHIC ZENITH TUBE OBSERVATIONS TO IMPROVE HIPPARCOS PROPER MOTION IN DECLINATION OF SOME STARS
Astrometry-Reference systems
2009/3/3
in declination for some HIPPARCOS stars are presented. A long
series of optical observations of these stars observed with Photographic Zenith Tubes
(PZT) are used. The HIPPARCOS ESA mission (ESA 199...