NGC2244_Bi-Colour_21-1-2020-V2

Another re-processing of old data, this time it's the Rosette Nebula taken back in January 2020. I've streamlined and simplified me processing methods with the help of StarNet ++ leading to better processed images ( I hope) This object would benefit from a focal reducer which I hope to have at some point in the new future.

 

This was imaged over 2 nights, the Ha on the 21st and Oiii on the 28th January 2020. I was hoping for an early night after getting the Oiii but this didn’t happen as this was the night I tripped up while packing up and biting through my lip. This required driving myself down to A&E and getting 3 stitches. I end up getting home at 4:30am. Considering I hit my head on the water feature, the result could’ve been far worse. A dangerous hobby this astronomy.

 

The Rosette Nebula commonly known as NGC 2237 with its associated Open Cluster NGC 2244. This is a large H II region which is part of a large molecular cloud in the of constellation Monoceros. It lies at a distance of approximately 5,200 ly from earth and is about 130 ly in diameter. The age of the open cluster is estimated to be less than 5 million years.

 

EQUIPMENT:-

Telescope Meade 6000 115mm and AZ-EQ6 GT

ZWO ASI1600mm-Cool cmos camera

Orion Mini Auto Guide

Astronomik 12nm Ha Filter

Astronomik 6nm Oiii Filter

Chip Temp Cooled to -20 degC

 

IMAGING DETAILS:-

NGC2244, NGC2237 Rosette Nebula (Monoceros)

Gain 139 (Unit Gain)

Dithering

30 Ha subs@360sec (3h 00min)

25 Oiii subs@360sec (2h 30min)

Total imaging Time 5h 30min

20 Darks

25 Flats

 

PROCESSING/GUIDING SOFTWARE:-

APT "Astro Photograph Tools"

DSS

PS CS2

Done