Useful website links to identify or understand observable aerospace phenomena.  

Astronomy websites and satellite tracking:

• HEAVENS–ABOVE : satellite tracking, International Space Station (ISS), space debris and information on comets/asteroids (https://www.heavens-above.com/) ;
• STELVISION : tools and tips for observing the stars in the sky (https://www.stelvision.com/carte-ciel) ;
• WEBASTRO (https://www.webastro.net/) ;
• SAF : French Astronomy society (https://saf-astronomie.fr/) ;
• ASTROSURF Observation of artificial satellites (http://www.astrosurf.com/d_bergeron/astronomie/Bibliotheque/Observation_satellites/satellites.htm) ;
• WINSTARS 3 : a 3D planetarium (https://winstars.net/) ;
• IN-THE-SKY : night sky observation software (https://in-the-sky.org/index.php) ;
• STELLARIUM : free open source planetarium software (http://stellarium.org/) ;
• IMCCE (Institut de Mécanique Céleste de de Calculs d’Éphémérides, Observatoire de Paris) : prediction of the activity of future meteoric swarms from Earth or elsewhere (http://www.imcce.fr/langues/en/ephemerides/phenomenes/meteor/) ; 
• Ciel des Hommes : news on astronomy (https://www.cidehom.com/index.php).

Aeronautical websites (aircraft track tracking):

• PLANEFINDER (https://planefinder.net) ;
• FLIGHTRADAR24  (https://www.flightradar24.com/38.54,5.19/5).

Meteoroid monitoring websites:

• VIGIE-CIEL : participatory science program to observe shooting stars, search for meteorites and impact craters (https://vigie-ciel.imo.net/members/imo/report_intro) ;
• FRIPON (Fireball Recovery and Inter Planetary Observation Network) : network of 100 sky surveillance cameras in France that allow the calculation of the trajectory of a bolide and to find meteorites on the ground (https://www.fripon.org/) ;
• BOAM (Base de données des Observateurs Amateurs de Météores) : French video observation database (http://boam.fr/) ;
• REFORME French meteor observation network (http://www.reforme-meteor.net/) ;
• IMO : International Meteor Organization : international organization of professionals and amateurs contributing to the knowledge of meteors(http://www.imo.net/) (https://fireballs.imo.net/members/imo_view/browse_events).

Various technical sites:

• Méprises-du-ciel : participatory website. Website of resources, references, links and examples of the most commonly observed misunderstandings in the sky and wrongly assimilated to Unidentified Aerospace Phenomena (https://meprises-du-ciel.fr/) ;
• IPACO : analysis of digital photo/video documents (http://www.ipaco.fr/) ;
• LIGHTNING RESEARCH LABORATORY (https://www.labofoudre.com/) ;
• METEO CIEL (http://www.meteociel.fr/) ;
• INFOCLIMAT open access weather database(https://www.infoclimat.fr/) ;
• GEOPORTAIL The National Territory Knowledge Portal implemented by IGN (https://www.geoportail.gouv.fr/) ;
• CIRCEE Centre for Information, Research and Consultation on Exceptional Experiences (http://www.circee.org/).

General space information webites:

• CNES (http://www.cnes.fr/) ;
• Les lanceurs spatiaux dans le monde (https://lanceurs.destination-orbite.net/index.php) ;
• CIEL et ESPACE (https://www.cieletespace.fr/) ;
• SCIENCE et VIE (https://www.science-et-vie.com/ciel-et-espace) ;
• FUTURA SCIENCES (https://www.futura-sciences.com/sciences/).