Messier 100 ( rflinn68 )

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Messier 100

Imaging Telescopes Or Lenses: GSO 10" carbon truss RC
Imaging Cameras: SBIG STF-8300M
Mounts: Orion HDX110
Filters: Astrodon Green Tru-Balance E-series · Astrodon Luminance Tru-Balance E-series · Astrodon Blue Tru-Balance E-series · Astrodon Red Tru-Balance E-series · Astrodon LRGB Tru-Balance E-series
Accessories: Starlight Xpress Slimline OAG · Starlight Xpress SX USB Filter Wheel 7x36mm · Dew-Not heater strip · Teleskop Service TSFlat2 field flattener · Moonlite CSL 2.5" threaded focuser · Ronald J. Keating Jr DewBuster Controller
Software: Adobe Photoshop · Open PHD Guiding Project PHD2 · ProDigital Software Astronomy Tools Actions Set · PixInsight · Sequence Generator Pro · EQMOD (EQASCOM) · Cartes du Ciel
Guiding Telescopes Or Lenses: GSO 10" carbon truss RC
Guiding Cameras: Lodestar X2

Dates:: Feb. 24, 2017 · March 2, 2017 · March 3, 2017 · March 4, 2017
Frames:: Astrodon Blue Tru-Balance E-series: 18×600″(3h) -25°C bin 1×1
Astrodon Green Tru-Balance E-series: 18×600″(3h) -25°C bin 1×1
Astrodon Luminance Tru-Balance E-series: 24×600″(4h) -20°C bin 1×1
Astrodon Red Tru-Balance E-series: 18×600″(3h) -25°C bin 1×1
Integration:: 13h
Darks:: 30
Flats:: 30
Bias:: 200
Avg. Moon age:: 10.77 days
Avg. Moon phase:: 22.56%

Basic astrometry details

Astrometry.net job: 1511446

RA center: 12h22m54s.7

DEC center: +15°49′44″

Pixel scale: 0.858 arcsec/pixel

Orientation: 179.220 degrees

Field radius: 0.337 degrees

Resolution: 2217x1758

File size: 1.1 MB

Locations: Little Piney Observatory, Hagarville, Arkansas, United States

Messier 100 (also known as NGC 4321) is an example of a grand design intermediate spiral galaxy located within the southern part of constellation Coma Berenices. It is one of the brightest (apparent magnitude 9.5) and largest (7.4' X 6.3') galaxies in the Virgo Cluster, located approximately 55 million light-years distant from Earth and has a diameter of 107,000 light years. It was discovered by Pierre Méchain on March 15, 1781.

Messier 100 is considered a starburst galaxy with the strongest star formation activity concentrated in its center, within a ring - actually two tightly wound spiral arms attached to a small nuclear bar with a radius of 1 kilo-parsec - where star formation has been taking place since at least 500 million years ago in separate bursts. As usual on spiral galaxies of the Virgo Cluster, in the rest of the disk both star formation and neutral hydrogen, of which M100 is deficient compared to isolated spiral galaxies of similar type, are truncated within the galaxy's disk, which is caused by interactions with the intracluster medium of Virgo.--Wiki

I was hoping for more Lum frames on this one, but didn't even get to finish the final hour of green I was wanting. Weather here has been rough this month with storm after storm rolling through on a regular basis. I've also received a new camera (Moravian G2-4000) that I'm hoping to use soon. As soon as things are lined out and the weather calms down, I'm hoping to get in a few images of galaxies and a couple globulars with the new setup.

Original
B
Final
C

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	Image of the day	Top pick	Top pick nominations	Total submitted
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Status	Basic success
Started	...
Astrometry.net job	1511446
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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