Messier 106 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy, which means that due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. NGC 4217 is a possible companion galaxy of Messier 106.
06 May 2014
M 106 (NEW) Add more time
22 February 2014
M 82 Supernova 2014j
SN 2014J
More information about this photo : http://www.astropixel.gr
Info from Wikipedia
02 February 2014
M1 The Crab Nebula
Crab Nebula in Ha filter
At X-ray and gamma ray energies above 30 keV, the Crab is generally the strongest persistent source in the sky, with measured flux extending to above 10 TeV. Located at a distance of about 6,500 light-years (2 kpc) from Earth, the nebula has a diameter of 11 light years (3.4 pc, corresponding to an apparent diameter of some 7 arc minutes) and expands at a rate of about 1,500 kilometers per second (0.5% c). It is part of the Perseus Arm of the Milky Way galaxy.
Info from Wikipedia
13 November 2013
NGC 891
NGC 891 in LRGB
NGC 891 (also known as Caldwell 23) is an edge-on unbarred spiral galaxy (actually barred) about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster. It has an H II nucleus.
The object is visible in small to moderate size telescopes as a faint elongated smear of light with a dust lane visible in larger apertures.
In 1999, the Hubble Space Telescope imaged NGC 891 in infrared.
In 2005, due to its attractiveness and scientific interest, NGC 891 was selected to be the first light image of the Large Binocular Telescope. In 2012, it was again used as a first light image of the Discovery Channel Telescope with the Large Monolithic Imager.
Supernova SN 1986J was discovered on August 21, 1986 at apparent magnitude 14.
Labels:
Galaxies
Location:
Κιθαιρώνας, Πλαταιές 322 00, Ελλάδα
09 October 2013
NGC 7380 in LHaRGB
The Wizard Nebula (Sh 2-142)
NGC 7380 (also known as the Wizard Nebula) is an open cluster discovered by Caroline Herschel in 1787. William Herschel included his sister's discovery in his catalog, and labelled it H VIII.77. It is also known as 142 in the 1959 Sharpless catalog (Sh2-142). This reasonably large nebula is located in Cepheus.
30 September 2013
Sh 2-155 Cave Nebula
C9 Cave nebula
-Telescope: William Optics FLT 110 with F/T focuser 3025 & Starizona usb motor focus
-Mount: Skywatcher ΗEQ5 pro
-Chip: Atik 314L+ at 0c
-Guiding: TS finder 8x50 with Meade DSI I pro
-Filter wheel: Starlight Xpress usb 7x1.25
-Location: Salamina (08.2013)(Ha) & Loutsa,Evia (LRGB)
-Luminance: 18x420sec 1x1bin
-Red: 10x300sec 1x1bin
-Green: 10x300sec 1x1bin
-Blue: 10x360sec 1x1bin
-Ha Astrodon 5nm :26x600sec
-Total: 546 minutes
-Programs I have used-
Maxim DL ,Pixinsight 1.6, Photoshop CS5, The Sky6 ,Focusmax
Visually it is a difficult object, but with adequate exposure, makes a striking image. The nebula gets its name from the dark lane at the eastern side abutting the brightest curve of emission nebulosity which gives the appearance of a deep cave when seen through a telescope visually.
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