SIMBAD references

2014AJ....147..158K - Astron. J., 147, 158 (2014/June-0)

CCD photometry of bright stars using objective wire mesh.

KAMINSKI K., SCHWARZENBERG-CZERNY A. and ZGORZ M.

Abstract (from CDS):

Obtaining accurate photometry of bright stars from the ground remains problematic due to the danger of overexposing the target and/or the lack of suitable nearby comparison stars. The century-old method of using objective wire mesh to produce multiple stellar images seems promising for the precise CCD photometry of such stars. Furthermore, our tests on β Cep and its comparison star, differing by 5 mag, are very encouraging. Using a CCD camera and a 20 cm telescope with the objective covered by a plastic wire mesh, in poor weather conditions, we obtained differential photometry with a precision of 4.5 mmag per two minute exposure. Our technique is flexible and may be tuned to cover a range as big as 6-8 mag. We discuss the possibility of installing a wire mesh directly in the filter wheel.

Abstract Copyright:

Journal keyword(s): methods: observational - stars: individual: β Cep - stars: oscillations - stars: variables: Cepheids - techniques: photometric

Simbad objects: 6

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2019.09.22-23:16:54

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