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vdB 136 is a reflection nebula in the constellation Cygnus. It locates in the north-central part of the constellation, just over 2 ° to SSW of the bright star Deneb, in the middle of a stretch of the Milky Way heavily overshadowed by the Cleft of the Swan; the best time for your observation in the evening sky falls between the months of June and November and it is much easier for observers placed in regions of the northern hemisphere of the Earth.It is rather rare for such a star to illuminate a reflection nebula. In this case it creates a rather yellow orange nebula rather than the blue color usually associated with reflection nebula. The Nebula is known as vdB 136 as well as GN 20.36.5. The field has lots of H alpha emission of warm ionized hydrogen gas. The nebula surrounding the star HD 196819, a red giant of spectral K2.5IIb having apparent magnitude 7.55; the distance, measured by a parallax value equal to 1.30 mas would be equal to 770 parsecs ( 2510 years light). Given this distance, the star with adjoining cloudiness lies within the complex of the nebulous Cleft, a short distance from the North America Nebula; in the same direction, but at a distance of more than 1500 parsecs, DR is 21, one of the systems associated with the nebulous grand star-forming region Cygnus X.

Hundreds of thousand stars..and a darkness "oasis" .. A LDN 810 is a dark nebula that was first cataloged by B.T. Lynds in 1962. The dark region at the center contains gas and dust out of which new stars are forming. A bipolar outflow of gas from one of these stars has also been detected. LDN 810 is a dark nebula in Vulpecula border with Cygnus,which is in the upper left ofthe image. Note the obscuring dust cloud continues south of image.. In the center of LDN 810 is the reflection nebula GN 19.43.3.01. LDN 810 is seen in IR light to be the birth ground of stars hidden by dust in visible light. Several authors estimate the distance between 6000 to 8000 lightyears. SH2-92 provides the faint red background,very weak. Young Stellar Objects (YSOs) are stars in the first phase of theirs lives, before they enter the main sequence of the Hertzsprung-Russell diagram and are fed by stably hydrogen fusion. YSOs are formed by contraction (and fragmentation) of molecular clouds. Information Credits: NOAO, Antonio F.Sánchez More info and resolution : http://afesan.es/Deepspace/slides/LDN%20810%2CSH2-92%2CReflection%20nebula%20GN%2019.43.3.01%2C%20YSO%20CB205YC1%20%28Vulpecula-Cygnus%29.html

NGC 5945, along with the other galaxies in the image, are located in the constellation Boötes. NGC 5945 is an example of a barred galaxy,.spiral whose arms overlap making a pseudo ring. Besides these rings there are two outer arm segments that see to make huge "ears" on the east and west sides of the galaxy. The two arms appear to have a high concentration of hot young blue stars. Just above the rings is a blue area, of possibly similar stars, that appear to have become slightly disconnected from the galaxy. To the far left, of NGC 5945, is a pair of interacting galaxies,NGC 5934 and 5935.Both have plumes drawn out of them by the interaction. Below the pair is KISSR 1955 a starburst galaxy with a faint outer halo. Starburst activity can be triggered by interaction with another galaxy but this isn't necessary. At the center of the image is the NGC 5943. This galaxy is very fuzzy with large plumes Closer examination reveals a jet coming from the right side of the galaxy. This jet may be related to the large, and faint, cloud that extends to the upper left and lower tight of NGC 5943. NGC 5947 is a rather pretty face on barred spiral with many arm segments. All are likely members of the same local group about a quarter billion light-years distant by redshift measurement. Hundreds of tiny galaxies and galaxy groups are here and there ,in the background,all around the image., some of them 3500 light years and even more... More resolution (299x2315) : http://afesan.es/Deepspace/NGC%205934,5935,5943,5945,5947%20(Bootes)_jpg_orig.html Text Credits: Bob Franke, Rick Johnson,Antonio F.Sánchez

NGC 4151 is an intermediate spiral Seyfert galaxy located 43 million light-years from Earth, in the constellation Canes Venatici. The galaxy was first mentioned by William Herschel on March 17, 1787; it was one of the two Seyfert galaxies described in the paper which defined the term. It is one of the nearest galaxies to Earth to contain an actively growing supermassive black hole; it was speculated that the nucleus may host a binary black hole, with about 40 million and about 10 million solar masses respectively, orbiting with a 15.8-year period. This is, however, still a matter of active debate. Some astronomers nickname it the "Eye of Sauron" from its appearance. X-ray source Astronomers using data from the European Space Agency’s XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151. When the black hole’s X-ray source flares, its accretion disk reflects the emission about half an hour later. A litte tidal tail can be seen into the bottom of the galaxy...and also in the spiral galaxy NGC 4156.. Credits NASA & Wikipedia