Taken the other day and tried to process it. Learned a lot.

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter. (Wikipedia)

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Mount: SkyWatcher HEQ5 Pro

Guiding: ZWO ASI 120MM Mini USB 2.0 Mono Camera - Orion 50mm Guide Scope

Filter: Astronomik CLS CCD EOS APS-C Clip-Filter

Camera: Canon EOS 70D (full spectrum modified)

Askar 80 PHQ F7.5 Quadruplet Astrograph Telescope

Focal length: 600mm

Astronomik CLS CCD Clip Filter

30 x 300 seconds frames - ISO 800 - f7.5

1 1/2 hour total Integration

Darks: 20 frames

Flats: 20 frames

Bios: 20 frames

DarkFlats: 20 frames

Bortle 5/6

Apps: N.I.N.A. > PHD2 > ASCOM > EQMOD

Processing: PixInsight > Photoshop >Topaz

I was/am so pleased with how my de-bayered SIGMA fp has performed that I couldn't resist going for a de-bayered SIGMA fp L (61MP). I finally go the chance to try it out in November, having managed to chase down a small hole in the clouds in northern Italy. The conditions were hard: The wind-side of the car was covered with ice before I had finished the set-up, so that I run out of juice before I could get all the data I wanted, nevertheless im still really pleased with the result. There is some really nice "smoking gun" effects in the S-II data that I wasn't aware of before (and didn't see in the 5 minute subs) so I will definitely be looking for an off-center composition next time i'm out ...

Celestron RASA 11 / 10Micron GM1000 / Sigma fp L monochrome

Star colour from a SIGMA fp shot separately.

Images processed in AstroPixelProcessor and completed to taste in Photoshop. Total time around 2,5 hours ...

PS start point: Ha Red / S-II Red+Green / O-III Green+Blue / star colours are uncalibrated.

100% views: markjamesford.prodibi.com/a/g66rrwd4xmx27m1/i/75zj2kg65r6...

Distance from Earth: 5219 light years

30*2min ( ~1h not enough but the cloud incoming ! )

DOF (20/20/20)

200/1000 PDS on HEQ5 Pro Mount

Altair GPcam on 80/400 for guiding

Canon 1200d Astrodon inside

The Rosetta Nebula, a HII region 5000 YL from Earth, iluminated by some nearby cumuli.

28 Lights

25 Darks

25 Falts

25 darkflats

With the QHY163c and Williams Optics Megrez 80

Pentax 100SDUF

Takahashi EM-11 Temma2 Jr.

Nikon D5100

ISO800

300s × 8

yimg,gimp2使用

135 mm, f/5.6, iso 800, 30x70 s

My hubbies Rosetta Nebula. 7x60 sec

The Rosette Nebula located near Monoceros.

This is just over 1 hour of four minute subs taken through my Williams Optics GT81 and Canon 350D

more of my astrophotos at www.digitalrust.co.uk/astrophotography.html

Just hanging out in my backyard.

64x10min canon 500d debayer with Samyang 135mm@ f2-2.8 filter halpha 7nm

Telescopio: SkyWatcher Explorer 150/750 - Montura: EQ6R Pro - Camara: ZWO ASI 1600MM Pro - Filtros: HA y OIII Optolong - Rueda Porta Filtros: QHY - Corrector de Coma: SKYWATCHER - Enfocador: ZWO EAF -

EQUIPO GUIA: Telescopio StarGuider 60/240 (F4) - Cámara QHI5LII Color.

SoftWare: SharCap - N.I.N.A. - PHD2 - PixingSight - Photoshop.

Fotografía tomada desde Vicña, IV region de Chile.

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Picture saved with settings embedded.

2015-03

William Optics Star71

QSI 690

R 20 x 300sec

G 15 x 300sec

B 15 x 300sec

= 250min of data

Acquired all new data in March 2015 but just processed now.

Between the weather, the trees and the march of time, I was only able to get 1.5 - 2.0 hours of data on the nights my guiding wasn't acting up. I also wasn't able to acquire any luminance frames, as I ran out of time. I was a bit burned out after this, but I'm pretty happy with the result.

Looking forward to the summer nebula season.

2015-02-19

William Optics Star71

QSI 690

Red 3 x 180sec

Green 3 x 180sec

Blue 2 x 180sec

Lum 3 x 180sec

= 33min of data

New camera, new scope, new target. It seems that it's too late in the season for me to do M42 at my location, so I'm trying the Rosetta.

This my first LRGB image. Didn't get much time with it, so it's pushed pretty hard and is thus noisy. Hopefully I'll be able to add more data.

NCG 2244 aka Rosette Nebula, Canon 350XT, 12 300 sec images stacked. Taken from Silver City, N.M.

A large, roughly circular H II region located on the edge of a giant molecular nebula, in the constellation Unicorn. The nebula has an angular diameter of 1.3° and is located at a distance of 1600 parsecs (about 5200 light years)[2] from the solar system; it is approximately 100 light-years in size. At the center of the Rosette Nebula is a bright open cluster known as NGC 2244

Photo: Giancarlo Neccia

Shooting data: Telescope 71sdq f.450 – Camera asi ZWO 183 – Total Exposure 2Hour