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Dibujos:
Todos los dibujos de los objetos del catálogo de Messier presentados en este trabajo son copyright © Juan Luis Martínez. Se permite su reproducción para fines estrictamente educativos. Para cualquier otro propósito, debe solicitar permiso del autor. Puede enviar un mensaje de correo electrónico a deltacorvi@gmail.com
Fotografías:
Todas las fotografías que hemos incluido en este sitio (a excepción de las correspondientes a M6, M8, M16, M17, M20, M23, M31, M42, M43, M44, M45 y M67) han sido obtenidas del Digital Sky Survey y reproducidas bajo el permiso de dicho centro educativo. Las mismas han sido reducidas de su tamaño original para ajustarse a los parámetros del diseño de este sitio.
A continuación, reproducimos las notas sobre los derechos de autor para las fotografías utilizadas en este proyecto, según los requisitos de:
Investigators using these scans are requested to include these acknowledgments in any publications as appropriate.
The Digitized Sky Surveys were produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope. The plates were processed into the present compressed digital form with the permission of these institutions.
The National Geographic Society - Palomar Observatory Sky Atlas (POSS-I) was made by the California Institute of Technology with grants from the National Geographic Society.
The Second Palomar Observatory Sky Survey (POSS-II) was made by the California Institute of Technology with funds from the National Science Foundation, the National Geographic Society, the Sloan Foundation, the Samuel Oschin Foundation, and the Eastman Kodak Corporation.
The Oschin Schmidt Telescope is operated by the California Institute of Technology and Palomar Observatory.
The UK Schmidt Telescope was operated by the Royal Observatory Edinburgh, with funding from the UK Science and Engineering Research Council (later the UK Particle Physics and Astronomy Research Council), until 1988 June, and thereafter by the Anglo-Australian Observatory. The blue plates of the southern Sky Atlas and its Equatorial Extension (together known as the SERC-J), as well as the Equatorial Red (ER), and the Second Epoch [red] Survey (SES) were all taken with the UK Schmidt.
All data are subject to the copyright given in the copyright summary. Copyright information specific to individual plates is provided in the downloaded FITS headers.
Supplemental funding for sky-survey work at the ST ScI is provided by the European Southern Observatory.
Para las fotografías a colores: Copyright © Association of Universities for Research in Astronomy Inc. (AURA), all rights reserved.
La fotografía de M45 es Copyright © Hugo Sillau.
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