Please contact me what other SEDS Deep Sky Links you'd like to see here !

A Guide to the Deepsky Astronomy Resources at SEDS

Beyond the asymptotic emptiness surrounding our Solar System up to a few light years distance begins the domain of other stars, clusters, and nebulae of our Galaxy, the Milky Way, and beyond it, the world of galaxies. This domain beyond our Solar System is often summarized as Deep Sky or Deep Space. Classifying astronomy for the objects under investigation, it is the second big branch of astronomy, besides the sciences of the Solar System. A very good internet resource on the Solar System, also hosted at SEDS, is Bill Arnett's Nine Planets Multimedia Tour. Here we want to give a brief guide to the various Deep Sky Resources at SEDS.

Deep Sky Objects in a closer sense are those nebulous patches which can be seen in the sky and are not individual single or multiple stars: Star clusters, gaseous (and dusty) nebulae, and galaxies. It is for historical and observational reasons that these very different objects are summarized in one category. Overall, they are among the more conspicuous and delightful objects to observe, photograph, and study for astronomers.

Our image was obtained by the Hubble Space Telescope and shows the giant diffuse nebula and star cluster NGC 604 in the Triangulum Galaxy M33 which is a member of the Local Group of galaxies, like our own Milky Way Galaxy. It is about 3 million light years distant.

The following resources at SEDS are related to Deep Sky Objects:

[Deepsky Home] This icon brings you back to this SEDS Deep Sky Homepage

Please contact me what other SEDS Deep Sky Links you'd like to see here !
Hartmut Frommert [contact]