Sky map online

Sky map online - for those Lovers of astronomy, who are looking into the telescope. Sky map online is the online planetarium and shows the major stars and nebulous objects at a given time over this place.
To use a starry Sky Map online, it is necessary to know the geographic coordinates of the place of observation...
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Messier catalog

Messier catalog - the most popular catalog of galaxies and nebulae, especially for beginners.
In this catalog the brightest objects of the Deep Space are collected, which are accessible for observation in amateur telescopes.
Messier catalog includes 110 galaxies, star clusters and nebulae...
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NGC/IC catalog

NGC/IC catalog - (New General Catalogue) includes 13166 galaxies, nebulae and other objects. NGC original catalog was compiled by John Ludwig Emil Dreyer in 1880, based largely on observations by William Herschel.
Here we have used the refined modern version of this catalog - RNGC, contains 13958 entries... more>>>

Moon phase now

Here you can see the phase of the Moon right now.
Also there are:

phase of lunar month;
illuminated area of the Moon;
age of the Moon;
distance from the center of the Earth to the Moon;
the angular size of the Moon when viewed from the center of the Earth.

And also the dates of the main phases of the Moon in the current and next month.
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Free programs for astronomy

izmccd - for high-precision astrometric processing of numerical images of celestial objects, identify minor planets, comets and find moving objects on numerical images, etc...