This is part of the huge Orion molecular cloud of dust and gas which acts as a stellar nursery.Theres no getting away from the fact that most of the stars in this image are brown! – due to overlying dust.
In the centre of the image, two young B-class stars (HD 38563A and HD 38563B) are reflected in the surrounding gas with an overlying dark arch.
Towards upper left is another reflection nebula, NGC 2071.
NGC 2064 and NGC 2067 are the two bright zones above the dark arch.
Towards the lower right, some early stars are just managing to penetrate the darkness as red or yellow splotches. One of these splotches (triangular – just to right of two small stars) brightened considerably in 2004 – its thought a young star ignited at that time – the region is called McNeil’s nebula after the amateur who noticed it.
Infra-red imaging shows about 45 new stars in the early phases of development in this cloud (T-tauri stars or Herbig-Haro objects which are outflow jets from young forming stars).
Image acquired remotely from the Mayhill observatory in New Mexico.
16 x 5 minute exposures. Dithered and drizzled.
Takahashi 150mm refractor
SBIG ST-4000XCM One Shot Color CCD camera
Mount: Paramount GTS
Field of view 49 x 49 arcminutes
Post-processing in PixInsight and Photoshop CC.
Orion widefield: click to enlarge NGC 1981 open cluster and NGC 1977 running man reflection nebula: click to enlarge NGC 1977 running man reflection nebula: click to enlarge.
I have waited SO long for a clear night and at last it came! Orion is now low in the sky so this was my last chance to image these targets for this year. Set up as usual and wasn’t sure if I had a great polar alignment – also, the Orion nebula is so bright that long exposures burn out easily so I chose 2 minutes as a good compromise. I was keen to use “dithering” with my auto-guider as it is said to reduce noise and bring out subtle detail – seemed to work very well. Am also now using “Neat Image” anti-noise software which has made a big difference.
Although it doesn’t look like much, I am very fond of open cluster NGC 1981 as it is the first object I looked at in a star atlas then decided to try and find with my telescope (a 8.75 inch Dobsonian). My old sky diary from 2009 is here: http://www.johnapurvis.synology.me/sky_diary.html
480/80mm refractor. Canon 60Da at ISO 800, 14 x 2 min sub-exposures. Astro-Hutech LPS filter. Ioptron ZEQ25GT mount. SSAG/PHD auto-guiding/dithering (dithered: every sub at 2 pixels). Focusing and camera sequencing/control with BackYard EOS. 30 darks and 25 flats (white LED panel: 1/20s @ ISO 800).
Post-processed in PixInsight 1.8 and Photoshop CC 2014. Noise reduction with Neat Image.
Cloudy, windy, rainy!
Promising this AM but just got cloudier: one run in white light with the 1000/102mm refractor: AR 2282. the upper spot shows some light bridges dividing it into segments.
Finally got some clear weather, so took out my Celestron 1000/102mm refractor with Solarscope single stack 70mm filter attached to the front. Although I could get visual focus, I found I couldn’t focus the CCD camera with a 2 inch diagonal, so abandoned that and just fitted the CCD camera directly to the single stack blocking filter with a 2 to 1.25 inch adapter.
I visually focused the scope first with a 30mm eyepiece until the sunspots were sharp then swopped in a 17mm eyepiece and focused (tuned) the hydrogen alpha etalon until I could see a rich field of fibrils. The etalon tuned after about 4 turns of its adjustment screw. After that the CCD went in.
I was able to get about 9 mosaic panels of the Sun. Some of them were a bit dim especially around 12 o clock so the mosaic quality isnt great – really should have kept a tight eye on my histogram readings but overall am reasonably happy.
Missed a jet flying across the Sun by a few seconds which would have been a nice image to have!
The top image shows a large quiescent filament at 10 o clock and there is a small C2.3 flare emerging from AR 2248 (checked this against daily solar events calendar at 1333 hrs UT).
Celestron 1000/102mm refractor.
Solarscope 70mm filter single-stacked.
Skyris 273m CCD camera.
Ioptron ZEQ25GT mount.
Taken with a Celestron Omni XLT at about 1639 UT when it was still quite light. I used an infra-red pass filter to get rid of all the daylight and reduce atmospheric shimmer which is mostly in the blue end of the spectrum. I like to take these type of shots at very low luminosity but that makes it difficult to stack and stitch the videos together.
In the end, I had to use Thierry Legault’s manual method (blending via difference mode for alignment in Photoshop). Ive used that twice now with panels that software such as MS ICE cant process and it does work very well.
Celestron Omni XLT 1000/102mm refractor.
Baader 685 nm IR pass filter with Skyris 273m CCD camera.
Ioptron ZEQ25GT mount.
The hazy cloud didn’t clear until late afternoon when the winter Sun was quite low. There then followed the somewhat comical sight of me taking a couple of mosaic panels then moving everything to another part of the garden as the Sun did its best to sink behind trees and neighbours houses.
I had to resite twice and only got 4 panels before I ran out of garden to chase the Sun 🙂
The large AR on the left is AR 2205.
Celestron 1000/102 Omni XLT with Lunt B1200 Ca K module, Baader K line filter and Skyris 274m CCD camera.