I just love this data - reprocessed again in March 2022 - above is a crop from the image immediately below. Click on either image for higher resolution.
Sorry - I just had to make one more rendition on 17th March 2022
Above: Same data - playing with colour in April 2021. (Click on above for larger image).
Above image awarded EAPOD on 23June21
Above is the full image as processed again in March 2021. Click on the image for a closer look.
The above image is a crop from a complete rework of the data - done in March 2021. (Click on image for higher resolution)
Above is January 2021 rendition with the same data as the 2020 version below!
Rosette Nebula
AAPOD2 15 January 2020
APODGrAG 21 January 2020
The Rosette Nebula (also known as Caldwell 49) is a large spherical H II region (circular in appearance) 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.
The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.
A survey of the nebula with the Chandra X-ray Observatory has revealed the presence of numerous new-born stars inside optical Rosette Nebula and studded within a dense molecular cloud. Altogether, approximately 2500 young stars lie in this star-forming complex, including the massive O-type stars HD 46223 and HD 46150, which are primarily responsible for blowing the ionized bubble. Most of the ongoing star-formation activity is occurring in the dense molecular cloud to the south east of the bubble.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200 ADT
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, OIII, SII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 3570 x 4225
Dates: 1st Jan to 4th Jan 2020
Frames:
Astrodon Ha 30 x 10'
Astrodon OIII 30 x 10'
Astrodon SII 36 x 10'
Total integration = 16 hours.
Center (RA, Dec): (98.165, 4.994)
Center (RA, hms): 06h 32m 39.656s
Center (Dec, dms): +04° 59' 37.226"
Size: 1.89 x 2.24 deg
Radius: 1.466 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 89.8
APODGrAG 21 January 2020
The Rosette Nebula (also known as Caldwell 49) is a large spherical H II region (circular in appearance) 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.
The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.
A survey of the nebula with the Chandra X-ray Observatory has revealed the presence of numerous new-born stars inside optical Rosette Nebula and studded within a dense molecular cloud. Altogether, approximately 2500 young stars lie in this star-forming complex, including the massive O-type stars HD 46223 and HD 46150, which are primarily responsible for blowing the ionized bubble. Most of the ongoing star-formation activity is occurring in the dense molecular cloud to the south east of the bubble.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200 ADT
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, OIII, SII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 3570 x 4225
Dates: 1st Jan to 4th Jan 2020
Frames:
Astrodon Ha 30 x 10'
Astrodon OIII 30 x 10'
Astrodon SII 36 x 10'
Total integration = 16 hours.
Center (RA, Dec): (98.165, 4.994)
Center (RA, hms): 06h 32m 39.656s
Center (Dec, dms): +04° 59' 37.226"
Size: 1.89 x 2.24 deg
Radius: 1.466 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 89.8
Sky Map
The Ha, OIII and SII elements in theimage
Annotated Image - Click on the image (twice) for highest resolution.
