Tuesday, April 8, 2025
Strange Pillar like Formation in IC 1805, The Heart Nebula
This is an object in the Heart Nebula that I have captured from time to time. My previous photo was taken in 2012.
This new photo reveals more details, even though the exposure time for H-alpha light was only 5 hours.
The pillar-like formations are typically pointing toward a source of ionization, in this case, the more famous Melotte 15.
I haven't been able to find a name for this beautiful object
A Hidden Pillar in IC 1805, the Heart Nebula
Click for a large image, 2000 x 2000 pixels.
A mapped color image from a light emitted by an ionized elements, sulfur=red, hydrogen=green and oxygen=blue. Original resolution 6500 x 6500 pixelsA close up
Click for a full size detail, 1600 x 1600 pixels.
Orientation in IC 1805
Click for a large image, 2000 x 2500 pixels.
Technical details
Processing workflow
Image acquisition, MaximDL v6.5
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS
Levels and curves in PS
Imaging optics,
Celestron EDGE 14" with 0.7 Focal reducer
Mount,
MesuMount Mark II
Cameras,
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz
filters,
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III
Total exposure time 9h
H-alpha, 15 x 1200 s, binned 1x1 = 5 h
O-III, 6x 1200 s, binned 2x2 = 2h
O-III, 6x 1200 s, binned 2x2 = 2h
S-II, 6 x 1200 s. binned 2x2 = 2h
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