Planetary Nebulae
Planetary Nebulae
Planetary Nebulae
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Planetary nebulae discovered and confirmed by amateur astronomers
  July 4th 2017 - Pascal Le Dû  Autre / Divers   
Fig1: de gauche à droite et de haut en bas: Pre43 - Tan1 - Su1 - Fe6 - Pre44 - Ga1
Context
Unreferenced objects from the sky are regularly discovered by amateur astronomers from their own images or from professional images. Like the DSH list, thanks to the initiative of Agnès Acker and Pascal Le Dû [1][5], a list of planetary nebulae candidates is maintained in France and regularly published in the SAF magazine and then in VizieR. Recently, amateur astronomers specializing in spectroscopy have managed to observe the spectra of some of these candidates to confirm their nature.
Instruments and teams
The spectra of some candidates were acquired with modest instruments from 0.09 m to 0.2 m diameter. Specific missions have allowed amateur teams like the PNST to use larger telescopes from 0.5 m (AstroQueyras) to 1 m (Calern) diameter. The spectrographs used are at low resolution at F/D = 5.
Sources and links
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Planetary Nebulae
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  About the article...
Date: 4 July 2017
Author: Pascal Le Dû
Category: Other / Varius
Article id: 8
All the articles: click here
Associated articles:
- Les candidates Pre 59 et Pre 61 imagées par Ste...
- Prix Dorothea Klumpke - Issac Roberts...
- Medium- to large-sized True and Likely planetary n...
Planetary Nebulae .net
Contacts: - in charge PN and applications: Pascal Le Dû (ledu@shom.fr)
- webmaster: Thomas Petit (petittom@gmail.com)
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The Planetary Nebulae .net website offers all the useful and practical information about the planetary nebulae (candidates), how to apply for a new discovery and how to confirm the candidates. If you would like to contribute to the website, please visit the Data Gathering page and contact us.
Contributors: Pascal Le Dû - Thomas Petit - Olivier Garde - Nicolas Petit - Trygve Prestgard - Jean-Baptiste Feldmann - Lionel Mulato - Sakib Rasool