Table of Contents

Links

Weather

More about the Weather and the Wetterzentrale

Atomic clock

Atomic clock

Sidereal time

Info on objects

SOHO data - current sun images

SDO data - current sun images

SolarMonitor - further SOHO-images

Simbad - database, see also How to work with the SIMBAD: Query by criteria

heavens-above.com - Live sky view, satellite predictions, solar system objects

telescopius.com - Astronomical planing tool for many astronomical objects

ISS Transit Finder

Moon

Lunar map - Interactive lunar map, ideal for the identification of crater (recommendation for the observations O3 and C3)

Lunar map - Can be used for the identification of crater (German)

Gazetteer of Planetary Nomenclature - Information about the geological formations on the lunar surface

LROC Northern Polar Mosaic - Mosaic of the moon north-pole, observed with the Lunar Reconnaissance Orbiter (R=2m/px)

Sun

Kanzelhöhe Observatory - Current images of the sun - also in Hα

Planetarium

Stellarium - free open source planetarium

Atomic data

NIST database

Atomic Data for Resonance Absorption Lines. III. Wavelengths Longward of the Lyman Limit for the Elements Hydrogen to Gallium (Data Table)

Interstellar molecular hydrogen toward zeta Puppis

Astronomical catalogs

Site Comments
Wikipedia List of astronomical catalogues
New General Catalogue (NGC) Catalog of nebula, star clusters, and galaxies
Messier catalog List of 110 astronomical objects, mainly galaxies, star clusters, and nebula

Manufacturer

BAADER Planetaium

Celestron

… more to come :-)

Astronomy Picture of the Day - Every day an interesting astrophysical image

Hipparcos - Astrometric space mission

VizieR - The most significant astronomical database

Staralt - Tool to determine the observability of objects

exoplanet.eu - Catalog of extrasolar planets

Gazetteer of Planetary Nomenclature - Information about the objects of our solar system