Every day our eyes catch the light of our memories – time spent with family, the journey to work, a special holiday, a beautiful sunset or a dark starlit night. Each image captured is a picture drawn in light – a photograph: only to be lost in our minds or forever forgotten. Nearly two hundred years ago a small group of amateur scientists achieved what had eluded mankind for centuries – the ability to capture a permanent record of an image seen by their own eyes – a moment in time frozen onto a surface. They had discovered Photography. They were the ‘Catchers of the Light’.

Monday, November 4, 2013

M33 Triangulum Galaxy in pure Ha light

M33 Triangulum Galaxy in pure Ha light

Using infrared observations from the Spitzer Space Telescope, a total of 515 discrete candidate sources of 24 μm emission within the Triangulum galaxy have been catalogued as of 2007. The brightest sources lie within the central region of the galaxy and along the spiral arms.

Many of the emission sources are associated with HII regions of star formation.[39] The four brightest HII regions are designated NGC 588, NGC 592, NGC 595 and NGC 604. These regions are associated with molecular clouds containing(1.2–4) × 105 solar masses. The brightest of these regions, NGC 604, may have undergone a discrete outburst of star formation about three million years ago.[40] This nebula is the second most luminous HII region within the Local Group of galaxies, at (4.5 ± 1.5) × 107 times the luminosity of the Sun.[37] Other prominent HII regions in Triangulum include IC 132, IC 133 and IK 53.[36]

The northern main spiral arm contains four large HII regions, while the southern arm has greater concentrations of young, hot stars.[36] The estimated rate of supernova explosions in the Triangulum Galaxy is 0.06 Type Ia and 0.62 Type Ib/Type II per century. This is equivalent to a supernova explosion every 147 years, on average.[41] As of 2008, a total of 100 supernova remnants have been identified in the Triangulum Galaxy,[42] and a majority of the remnants lie in the southern half of the spiral galaxy. Similar asymmetries exist for H I and H II regions, plus highly luminous concentrations of massive, O type stars. The center of the distribution of these features is offset about two arc minutes to the southwest.[36] Being a local galaxy, theCentral Bureau for Astronomical Telegrams (CBAT) tracks novae in M33 along with M31 and M81.[43]

From Wikipedia, the free encyclopedia

Instruments and exposure data:

Ha 23*10min

W.O FLT110 with dedicated TMB field flattener

FeatherTouch 3'' focuser

Starizona MicroTouch autofocuser



Meade DSI

Sky-Watcher EQ6 Pro

Filters: Ha 5nm Astrodon

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