Mandel Wilson 2, Dust Angel or Angel nebula, is made up of Integrated Flux Nebula (IFN).
According to Steve Mandel-Wilson, IFN are “high galactic latitude nebulae … illuminated not by a single star (as most nebulae in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way”.
Meaning… the combined light of stars along the Milky Way are reflected by these cosmic dust clouds that soar some 300 light-years or so above the plane of our galaxy.
It’s amazing what myriad of small galaxies are in the background of htis picture….
It’s a extremelly faint nebula on a large wide field, on the same frame it’s possible to alocate 50 full moons…..
As example here is a single frame: one frame 120s lum channel, just calibrated and STF.
Integration is about 370 frames like this.
The nebula is there… believe me 😀
Equipment
Imaging Telescopes Or Lenses
Canon EF 200mm f/2.8L II USM
Imaging Cameras
ZWO ASI1600MM-Cool
Mounts
OpenAstroTech OpenAstroTracker
Filters
Astronomik L-2 UV-IR Block 36mm · Astronomik Green Deep-Sky 36mm · Astronomik Red Deep-Sky 36mm · Astronomik Blue Deep-Sky 36mm
Accessories
ZWO EFW · AstroMechanics ASCOM Canon EF Lens Controller · TALON6 R.O.R
Software
Pleiades Astrophoto PixInsight
Acquisition details
Dates:
Jan. 1, 2022 · Jan. 28, 2022 · Jan. 31, 2022 · March 1, 2022
Frames:
Astronomik Blue Deep-Sky 36mm: 100×120″ (3h 20′) (gain: 75.00) -15°C bin 1×1
Astronomik Green Deep-Sky 36mm: 100×120″ (3h 20′) (gain: 75.00) -15°C bin 1×1
Astronomik L-2 UV-IR Block 36mm: 370×120″ (12h 20′) (gain: 75.00) -15°C bin 1×1
Astronomik Red Deep-Sky 36mm: 100×120″ (3h 20′) (gain: 75.00) -15°C bin 1×1
Integration:
22h 20′
Avg. Moon age:
27.57 days
Avg. Moon phase:
5.98%
RA center: 10h31m20s.55
DEC center: +73°19′59″.3
Pixel scale: 8.018 arcsec/pixel
Orientation: -54.748 degrees
Field radius: 3.246 degrees
WCS transformation: thin plate spline
Resolution: 2328×1760
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
via Flickr https://flic.kr/p/2np2xUZ