WEATHER

        ◆ SAT24

        ◆ METEO FRANCE

        ◆ LA CHAINE METEO

        ◆ METEO 60

        ◆ ALL MET SAT

        ◆ METEORAGE

• COPERNICUS ESA - DUST
• METEOLOGIX (DUST)

VARIABLE STARS

        ◆ AAVSO

        ◆ AFOEV

        ◆ IBVS

        ◆ GCVS

        ◆ CBAT (CATACLYSMIC STARS)

COMETS

      ◆ INTERNATIONAL COMET QUARTERLY

        ◆ MINOR PLANET CENTER (COMETS)

        ◆ SEIICHI YOSHIDA

        ◆ BAA COMET SECTION

SUPERNOVAE

        ◆ LATEST SUPERNOVAE

        ◆ CBAT - SUPERNOVAE LIST

        ◆ TYPE Ia SUPERNOVAE

ASTEROIDS        

      ◆ CBAT / MPC

        ◆ MINOR PLANET CENTER (ASTEROIDS)

        ◆ EPHEMERIS GENERATOR (UAI)

        ◆ ASTRORB (LOWEL OBS. GENERATOR)

        ◆ STEPHEN AUSTIN STATE UNIVERSITY

        ◆ ASTEROID SPECTRA (MIT)

        ◆ EURASTER.NET (OCCULTATIONS)

PHOTOMETRY

        ◆ LANDOLT STANDARDS

        ◆ CATALOGUE OF PHOTOMETRIC DATA

        ◆ PHOTOMETRIC SYSTEMS

        ◆ EXOPLANET TRANSITSEARCH

        ◆ EXOPLANET TRANSIT DATABASE

        ◆ EXOPLANET.ORG

        ◆ AMATEUR EXOPLANET ARCHIVE

SUN

        ◆ BASS2000

        ◆ SOLAR CURRENT IMAGE

        ◆ SUN TODAY

        ◆ BIG BEAR

• HELIOVIEWER.ORG
• SOLARMONITOR.ORG
• USET

        ◆ SOHO

        ◆ GFOES

DATA BASE

        ◆ CDS

        ◆ SIMBAD

        ◆ ALADIN

        ◆ GIA2 (Vizier)

        ◆ DIGITAL SKY SURVEY (STSCI)

        ◆ DIGTAL SKY SURVEY (ESO)

        ◆ SKYVIEW

        ◆ NED

        ◆ HYPERLEDA (GALAXIES)

        ◆ THE WHOLE NGC

        ◆ BUIL-THOUVENOT ATLAS

EPHEMERIS

        ◆ HORIZONS (NASA - JPL)

        ◆ SOLAR SYSTEM SIMULATOR (JPL)

        ◆ IMCCE

        ◆ USNO

• THE SKY LIVE
• ASTRONOMICAL CALCULATOR

MISCALANEOUS

        ◆ AUDINE PROJECT

        ◆ LA BAGUE PHOTO

        ◆ PHOTO24 (FILTRES)

        ◆ LIVEPIXEL (INFRARED PHOTOGRAPHY)

SENSORS

        ◆ GIGAJOT (LOW NOISE CMOS)

        ◆ HAMAMUTSU (LOW NOISE CMOS)

PUBLICATIONS

        ◆ ADS ARTICLE SERVICE

        ◆ ARXIV.ORG (PREPRINT)

        ◆ ASTRONOMY & ASTROPHYSICS (A&A)

        ◆ ASTROPHYSICAL JOURNAL

        ◆ PASP

        ◆ MNRAS

        ◆ ESO MESSENGER

        ◆ STECF NEWSLETTERS

        ◆ ASTRONOMER TELEGRAM

FORUM  

        ◆ ASTROSURF

        ◆ WEBASTRO

        ◆ CLOUDYNIGHT

PRO-AM + ALERTS 

        ◆ GEMINI

        ◆ Astro-COLIBRI        

        ◆ KILONOVA CATCHER

        ◆ TNS (Transient Name Search)