 Most viewed |
Dazza_and_my_scope_on_right.jpg4884 viewsMartin
|
|
47Tucreprocessed2Gig.jpg47Tucanae2339 viewsThis is an reprocess and has an less green back ground, also the starcolors look better to me.Martin
|
|
jewelbox.jpgJewelbox.2250 viewsThe Jewel Box (also known as NGC 4755, the Kappa Crucis Cluster and Caldwell 94) is an open cluster in the constellation of Crux. As Kappa Crucis, it has a Bayer designation despite the fact that it is a cluster rather than an individual star.
It is one of the finest open clusters discovered by Nicolas Louis de Lacaille when he was in South Africa during 1751–1752. This cluster is one of the youngest known, with an estimated age of only 7.1 million years. It has an apparent magnitude of 4.2, and is located 6,440 light years from Earth and contains around 100 stars.
This famous group of young bright stars was named the Jewel Box from its description by Sir John Herschel as "a casket of variously coloured precious stones," which refers to its appearance in the telescope. The bright orange star Kappa Crucis contrasts strongly against its predominantly blue, hot companions. Kappa Crucis is a very large (hence very luminous) young star in its red supergiant stage, which paradoxically indicates that its life is drawing to a close. The cluster looks like a star to the unaided eye and appears close to the easternmost star of the Southern Cross, (Beta Crucis), so is only visible from southern latitudes.Martin
|
|
Sombrerocropdone.jpgSombrero galaxy1674 viewsThe Sombrero Galaxy (also known as M104 or NGC 4594) is an unbarred spiral galaxy in the constellation Virgo located 28 million light years from Earth. It has a bright nucleus, an unusually large central bulge, and a prominent dust lane in its inclined disk. The dark dust lane and the bulge give this galaxy the appearance of a sombrero. Astronomers initially thought that the halo was small and light, indicative of a spiral galaxy. But Spitzer found that halo around the Sombrero Galaxy is larger and more massive than previously thought, indicative of a giant elliptical galaxy. [5] The galaxy has an apparent magnitude of +9.0, making it easily visible with amateur telescopes. The large bulge, the central supermassive black hole, and the dust lane all attract the attention of professional astronomers.Martin
|
|
Group1-L_flattener.jpgwith flattener1380 viewsMartin
|
|
NGC4945.jpgNGC4945.1193 viewsNGC4945 with the Supernova.Martin
|
|
CentAfinal2G.jpgCentaurus A1192 views10 X 5 Min RGB and 15 X 10 Min Luminance.
Martin
|
|
testing.jpgtestimage1082 views2X30Seconds at ISO1600Martin
|
|
Lagoon-L.jpgNo flattener1051 viewsMartin
|
|
6067_done.jpgNGC6067.1043 viewsNGC 6067 is a bright open cluster deep South in the Constellation of Norma. Because it is located in the same plane of the Milky Way it has a dense star background. A nice target for small telescopes even from urban skies. The cluster contains about 100 stars between 8 magnitude and fainter.Martin
|
|
LEO.jpgThe Leo trio.1001 viewsThis is a composition of 15X600 Seconds Luminance and 10X300 Seconds RGB each.Martin
|
|
Eta_Carinae_done_ha2Mb.jpgEta Carinae with the EQ8 mount.955 viewsMartin
|
|
| 132 files on 11 page(s) |
1 |
 |
|
|
|
|
|
|
|
|
