martinsastro

Astronomy for all.
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133 files in 12 albums and 1 categories with 0 comments viewed 29,985 times

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Lester.jpg

1 files, last one added on Dec 26, 2011
Album viewed 189 times

Dargo to Licola


IMG_0518.jpg

18 files, last one added on May 21, 2016
Album viewed 19 times

Camper trailer files.



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rosettecropfinal.jpg
rosettecropfinal.jpgRosette nebula.203 viewsThe cluster and nebula lie at a distance of some 5,200 light years from Earth (although estimates of the distance vary considerably) and measure roughly 130 light years in diameter. The radiation from the young stars excite the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.

It is believed that stellar winds from a group of O and B stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.

A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.
Martin
Shane_and_Shane.jpg
Shane_and_Shane.jpg155 viewsShane and Shane.
Very well reccomended :)
If you can go to an concert then go to Shane's band.
Martin
Swan_done.jpg
Swan_done.jpgSwan nebula.256 viewsThe Omega Nebula, also known as the Swan Nebula and the Horseshoe Nebula[2] (catalogued as Messier 17 or M17 and as NGC 6618) is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is located in the rich starfields of the Sagittarius area of the Milky Way.

The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter. The total mass of the Omega Nebula is an estimated 800 solar masses.

A open cluster of 35 stars lies embedded in the nebulosity and causes the gases of the nebula to shine due to radiation from these hot, young stars.
Martin
Doug_and_scope.jpg
Doug_and_scope.jpg159 viewsMartin
Dave.jpg
Dave.jpg158 viewsMartin
Sombrerocropdone.jpg
Sombrerocropdone.jpgSombrero galaxy1041 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
IC443.jpg
IC443.jpgIC443.246 viewsIC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years (~5×1016 km) from Earth.
IC 443 is thought to be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core.
IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
Martin
NGC1097-done.jpg
NGC1097-done.jpgNGC1097.145 viewsNGC 1097 is a barred spiral galaxy about 45 million light-years away in the constellation Fornax. Three supernovae (SN 1992bd, SN 1999eu, & SN 2003B) have been observed in NGC 1097 (as of 2006).
Star forming ring in NGC 1097. HST. 0.9′ view

NGC 1097 is also a Seyfert galaxy, with jets shooting from the core. Like most galaxies, NGC 1097 has a supermassive black hole at its center. Around the central black hole is a ring of star-forming regions with a network of gas and dust that spirals from the ring to the black hole.
Colour-composite image of the central 5,500 light-years wide region of the spiral galaxy NGC 1097, obtained with the NACO adaptive optics on the VLT. Credit: ESO
Almost-true colour composite based on three images made with the multi-mode VIMOS instrument on the 8.2-m Melipal (Unit Telescope 3) of ESO's Very Large Telescope. Credit: ESO


NGC 1097 has two satellite galaxies. NGC 1097A is the larger of the two. It is a peculiar elliptical galaxy that orbits 42,000 light-years from the center of NGC 1097. NGC 1097B is the outermost one and not much is known about that.
Martin

Last additions
IMG_0518.jpg
IMG_0518.jpgnice view16 viewsnice viewMartinMay 21, 2016
IMG_0517.jpg
IMG_0517.jpgARB Kev19 viewsARB Kev.MartinMay 21, 2016
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IMG_0516.jpg13 viewsKev's CarMartinMay 21, 2016
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IMG_0515.jpg13 viewsJacki and carMartinMay 21, 2016
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IMG_0514.jpg16 viewsAlex's carMartinMay 21, 2016
IMG_0513.jpg
IMG_0513.jpg16 viewsScotty's carMartinMay 21, 2016
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IMG_0512.jpg16 viewsMark beside his carMartinMay 21, 2016
IMG_0511.jpg
IMG_0511.jpg16 viewsHang this in the ceiling and Mark will be out of business :PMartinMay 21, 2016