Deep sky objects are non-stellar astronomical objects that can be seen in the night sky. As telescopes have improved, these faint objects have been broken into more descriptive scientific classifications such as interstellar clouds, star clusters, and galaxies. Deep Sky Observing Amateur Astronomy Science.
- Star Clusters www
General information on star clusters from SEDS. Clusters.
- International The Webb Deep-Sky Society www
International society of amateur and professional astronomers specializing in the observation of deep sky objects. Webb Deep-Sky Society. Includes a forum where members can communicate and publish the results of their observations. The Webb Deep-Sky Society.
- The NetAstro Catalog www
The Internet Amateur Astronomers Catalog (IAAC), Catalog, a mailing list for deep sky observers of all levels. NetAstro Catalog.
- Includes Challenging Observing Projects for Amateur Astronomers www
Includes 100 peculiar galaxies, Observing Projects for Amateur Astronomers, off the beaten path, observing galaxy clusters, the Abell planetaries, and the ultimate observing list with images. Challenging Observing Projects for Amateur Astronomers.
- Pointers Secrets of Deep-Sky Observing www
Pointers observers should know includes sky brightness, Deep-Sky Observing, dark adaptation, averted vision, high power, capturing color, and other tips. Secrets of Deep-Sky Observing.
- Information, View-tah's Astronomy Pages - Deep Sky www
Information, Astronomy Pages - Deep Sky, images, charts for the Messier, Caldwell, NGC, and Hubble with search tool. View-tah's Astronomy Pages - Deep Sky.
- Galleries Visual Deep Sky Observing www
Galleries of sketches, Deep Sky Observing, legend, projects, publications, and links. Visual Deep Sky Observing.
- Astronomical Graphite Galaxy www
Astronomical sketches of deep sky objects observed by Ferenc Lovro. Graphite Galaxy.
- Math Star Observer www
Math Heijen provides a collection of visual observing reports on stars, Observer, double stars and open clusters. Star Observer.
- Sketches Astronomical Sketches www
Sketches of astronomical objects made at the telescope by Michael Geldorp. Astronomical Sketches.
- Article Deep Sky Intro www
Article on various types of deep sky objects. Deep Sky Intro.
- Articles, Ray Cash's Deep-Sky Page www
Articles, Cash's Deep-Sky Page, information, photos, and links about deep-sky observing. Ray Cash's Deep-Sky Page.
- Observing Messier45 www
Observing guide, Messier45, articles, Messier Gallery, Herschel 400 and Deep Sky Browser which allows the ability to search deep sky objects and view maps and images of over 600,000 objects. Messier45.
- Images The Messier Catalog www
Images and galleries, Messier Catalog, marathoner list, and new nebula and supernovae. The Messier Catalog.
- Sketches, Ian's Astro Page www
Sketches, Astro Page, scratchings, pictures, and links, and construction of piggyback camera adaptor. Ian's Astro Page.
- Deep Deep Sky Observing www
Deep sky object types and classifications. Sky Observing. Includes a Messier interactive map, pictures, constellations and observation guide. Deep Sky Observing.
- Contains The National Deep Sky Observers Society www
Contains information, National Deep Sky Observers Society, challenges, galaxy clusters, globular clusters, open star clusters, naked eye observations, observing planetary nebulae, the Milky Way, and star hopping. The National Deep Sky Observers Society.
- General, List of Common Deep Sky Catalogs www
General, Common Deep Sky Catalogs, supernova remnants, planetary nebulae, diffuse nebulae, dark nebulae, open clusters, globular clusters, galaxies, clusters of galaxies, double stars, and references. List of Common Deep Sky Catalogs.
- Tutorials, Deepsky Observer's Companion www
Tutorials, Observer's Companion, chart index, discussions, certificates, and resources. Deepsky Observer's Companion.
- A Iiro's DeepSky Sketches www
A collection of my deepsky sketches and general information about deepsky objects and telesopes. Iiro's DeepSky Sketches.
- Wiki DeepSkyPedia www
Wiki project aiming to help amateur astronomers in planning their observing sessions. DeepSkyPedia. Includes more than 4,000 articles describing the appearance of various deep sky objects in instruments of all sizes. DeepSkyPedia.
- Includes A CCD Tour of the Universe www
Includes deep sky objects and solar system CCD galleries, CCD Tour of the Universe, techniques and resources, and equipment. A CCD Tour of the Universe.
- Provides Arp's Catalog of Peculiar Galaxies www
Provides images from the catalog of 338 peculiar galaxy views gathered by Dr. Catalog of Peculiar Galaxies. Halton C. Arp in his Atlas of Peculiar Galaxies. Arp's Catalog of Peculiar Galaxies.
- Hubble Hubble Separates Stars In The Mira Binary System www
Hubble Space Telescope News Release/Paper about the discovery of the atmospheric interaction between the giant star Mira and its white dwarf companion star. Hubble Separates Stars In The Mira Binary System.
- This Binary Star Simulation www
This JAVA simulation allows the user to set the masses, Star Simulation, orbital separation, orbital eccentricity, the inclination angle to the line of sight, and the angle of the nodes of an orbiting star pair. Binary Star Simulation.
- High HEASARC www
High Energy Astrophysics Science Archive Research Center. HEASARC. Provides an archive of data on (and software for analyzing) gamma-ray, X-ray, and extreme ultraviolet observations of cosmic (non-solar) sources. HEASARC.
- An Leicester Digitized Sky Survey www
An image browser providing access to digitized optical Schmidt plates forming the STScI Survey. Leicester Digitized Sky Survey.
- Includes M31: The Andromeda Galaxy www
Includes a catalog of globular clusters, The Andromeda Galaxy, photos, and brief description. M31: The Andromeda Galaxy.
- Research UMass High Energy Astrophysics Group www
Research group primarily interested in high energy activities in galaxies, High Energy Astrophysics Group, particularly the interplay between massive stars and the interstellar medium. UMass High Energy Astrophysics Group.
- Evolutionary Interstellar Molecules evolutionary cycle www
Evolutionary cycle of Interstellar Organic Molecules - Fullerenes, Molecules evolutionary cycle, PAHs, Polyyenes, and biomolecules. Interstellar Molecules evolutionary cycle.
- Part Nebulae www
Part of a larger site on plasma physics. Nebulae.
- Lecture White Dwarfs www
Lecture notes by Professor Barbara Ryden. White Dwarfs.
- An The Minima of Algol www
An article by Alan MacRobert from Sky and Telescope Magazine about the star Algol (Beta Persei) was the first eclipsing variable star ever discovered. The Minima of Algol.
- Observing Skyandtelescope.com - Variable Stars www
Observing variable stars. Skyandtelescope.com - Variable Stars.
- Getting Astronomy Boy www
Getting started, Boy, CG-5 mount, SAA 100 list, constellation portraits, barn door tracker, comet Hale Bopp, homemade eyepieces, EQ mount tutorial, millennium rant, and biography, home. Astronomy Boy.
- Supporting Astronomy Awards www
Supporting the hobby related web sites throughout world. Astronomy Awards.
- Alexa: Deep Sky Observing Amateur
Alexa Directory Top Sites: Deep Sky Observing Amateur
- DMOZ: Deep Sky Observing Amateur
dmoz.org Directory: Deep Sky Observing Amateur