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M27 (Vul)
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| Date/Site: |
7. August 2020, 20., 28. Juni and 2. Juli 2022. Remote observatory on the AAR club's site in Presberg |
Exposure/
Filter: |
R: 12 x 300 seconds,
G: 12 x 300 seconds,
B: 17 x 300 seconds,
Hα: 23 x 300 seconds,
Hα: 50 x 600 seconds,
O3: 10 x 300 seconds,
O3: 44 x 600 seconds, (-20°C) |
| Camera: |
Moravian G3-16200 with Astronomik Type II-filters |
Optics/
Instrument: |
250mm f/4,7 Newton with VIP-3010 Paracorr on 10Micron GM1000 HPS |
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Guiding: Lodestar attached to a 61mm-finder,
focusing: Microtouch and FocusMax,
data acquired remotely using CCD-Commander and MaximDL 6,
calibration and processing: PixInsight 1.8 |
M27, the Dumbell-nebula, was imaged by me with an assortment of instruments over the past years.
The RGB-data of this series was mixed with an artificial colour-image created from starless Hα- and O3-frames, to enhance the outer wisps of ionized gas.
In June 2022 I captured a some 10-minute Hα and O3-Frames and added them to the original stacks, in order to enhance the outer shells of the earlier phases of this planetary nebula.
With this camera/optics combination the image already looks like a widefield shot.
And here some older images of this object:
M27 (Vul)
Click on the image for a larger version
| Date/Site: |
September 24th, 2011, AAR-observatory in Presberg |
Exposure/
Filter: |
R: 6 x 600 seconds, G: 6 x 600 seconds, B: 7 x 600 seconds (-15°C) |
| Camera: |
SBIG ST10XME, CFW9 with SBIG LRGB-filters, AO-8 |
Optics/
Instrument: |
10“-Ritchey-Chrétien on AP1200 |
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Darks, flats, deblooming, alignment and stacking: MaximDL 5,
Levels and curves: Photoshop CS3. |
The Dumbbell nebula was the only possible target this night simply because it was in the sole region of the sky that was permanently clear.
As a comparison a shot with the Newton made one year before.
M27 (Vul)
Click on the image for a larger version
| Date/Site: |
July 19th, 2010, AAR-observatory in Presberg |
Exposure/
Filter: |
R: 7 x 200 seconds, G: 4 x 200 seconds, B: 3 x 200 seconds (-15°C) |
| Camera: |
SBIG ST10XME, CFW9 with SBIG LRGB-filters, AO-8, RCC1 coma-corrector |
Optics/
Instrument: |
26cm-Newton on Gemini 41 Observatory |
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Focusing with Robofocus |
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Darks, flats, deblooming, alignment and stacking: MaximDL 5,
Levels and curves: Photoshop CS3. |
Here for the first time integration time was invested only in the colour frames. It is interesting to see that even with short exposures hints of the outer Hα shell are visible.
And here the first image with the 300Da and the 6"-Newton.
M27, Dumbbell Nebula (Vul)
Click on the image for a larger version
| Date/Site: |
August 11., 2007, Rifugio Monte Muro, Maurerberg, Southern Tyrol |
Exposure/
Filter: |
1 x 5 minutes, 5 x 6 minutes, 2 x 10 minutes |
| Camera: |
Canon EOS 300Da |
Optics/
Instrument: |
6"-Newton on Gemini 41 Observatory mount, Baader-coma-corrector |
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focusing with RoboFocus and DSLR Focus |
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webcam-guiding with MaximDSLR through 4"-FH-refractor |
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Darks: Fitswork, alignment and stacking: MaximDSLR,
levels and curves: Photoshop CS |
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