52 citations · 229 across the 13 of their papers we have counts for
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Using raytracing to derive the expected performance of STELLA's SES-VIS spectrograph
Michael Weber, Klaus Strassmeier, Manfred Woche +2
The visual STELLA echelle spectrograph (SES-VIS) is a new instrument for the STELLA-II telescope at the Izaña observatory on Tenerife. Together with the original SES spectrograph -…
Second generation spectroscopic instrumentation for the STELLA robotic observatory
Michael Weber, Manfred Woche, Klaus G. Strassmeier +2
The current STELLA Echelle spectrograph (SES), which records 390nm to 870nm in one shot at a spectral resolution of 55000, will be replaced by a suite of specialized spectrographs…
On the binary orbit of Henry Draper one (HD 1)
Klaus G. Strassmeier, Michael Weber
We present our final orbit for the late-type spectroscopic binary HD 1. Employed are 553 spectra from 13 years of observations with our robotic STELLA facility and its high-resolut…
Spatially Resolved Ultraviolet Spectroscopy of the Great Dimming of Betelgeuse
Andrea K. Dupree, Klaus G. Strassmeier, Lynn D. Matthews +9
The bright supergiant, Betelgeuse (Alpha Orionis, HD 39801) experienced a visual dimming during 2019 December and the first quarter of 2020 reaching an historic minimum 2020 Februa…