Heart Nebula (IC 1805)

In Astrophotography by Matt Shetzer

Heart Nebula (IC 1805)

Click image for detailed view

 
The Heart Nebula, formally known as IC 1805, is a sprawling region of glowing gas and dust located about 7,500 light-years away in the constellation Cassiopeia. It earns its name from its unmistakable shape—a sprawling, lopsided heart traced in delicate filaments of red hydrogen gas. Despite the poetic appearance, the nebula is a bustling stellar nursery, home to newly born stars and massive clusters that radiate immense energy. It’s not just a pretty face in the cosmos; it’s a stellar forge, where the next generation of stars is being sculpted from clouds of interstellar material.

At the core of the Heart Nebula lies the bright star cluster known as Melotte 15, which is made up of several young, hot stars that are no more than a few million years old. These stellar heavyweights blast their surroundings with powerful winds and radiation, shaping the surrounding gas into intricate structures—pillars, arcs, and tunnels of light and shadow. It’s a scene of both destruction and creation, as the very forces that erode the nebula also spark new waves of star formation. The glowing red hues, a result of ionized hydrogen, stretch across hundreds of light-years, painting a cosmic canvas that is as chaotic as it is beautiful.

Even though it’s far from Earth, the Heart Nebula has become a favorite among astrophotographers and skywatchers due to its distinctive shape and vibrant colors. Long-exposure images reveal details hidden to the naked eye, capturing the nebula’s filigree of glowing gas and intricate dark dust lanes. Observing the Heart Nebula is a reminder of how active and alive the universe truly is. It may look calm and serene from our vantage point, but within its glowing contours is a complex and turbulent story of stellar birth, evolution, and the endless recycling of cosmic material.

 

Object Heart Nebula
Link https://www.shetzers.com/heart-and-soul-nebulas/
Wiki Link https://en.wikipedia.org/wiki/Heart_Nebula
Hemisphere Northern
Constellation Cassiopeia
Other Names contained in image Running dog nebula, IC 1805, Sharpless 2-190)
Imaging telescopes or lenses Takahashi FSQ -106ED4
Imaging cameras QHY268M
Mounts Software Bisque Paramount MYT
Focal reducers None
Software Software Bisque The Sky X, N.I.N.A., PHD Lab PHD2, Viking,  PixInsight, Photoshop, Lightroom
Filters Astrodon LRGB Gen2 E-Series Tru-Balance  36mm unmounted. Chroma Technology Narrowband 3nm Ha, SII, OIII – 36mm Unmounted
Accessories Moonlite NightCrawler 35 focuser, Maxdome II, Digital Loggers Pro Switch, Sky Alert Weather Station, Pegagsus Ultimate Powerbox v2, Starlight Xpress filter wheel.
Guiding Telescope or Lenses Orion 60mm Guide Scope
Guiding Camera ZWO ASI290MM Mini
Imaging Dates 12/20/21,1/20/22, 1/30/22,9/1/22,9/2/22,9/3/22,9/4/22,9/5/22,9/6/22,9/9/22,9/10/22,9/11/22,9/12/22
Frames Luminance: 8×180″  (0.4h)  Gain 25, Photographic Mode, Temp -10C, Bin 1×1
Red: 8×180″ (0.4h) Gain 25, Photographic Mode, Temp -10C, Bin 1×1
Green: 6×180″ (0.3h) Gain 25, Photographic Mode, Temp -10C, Bin 1×1
Blue:7×180″ (0.35h) Gain 25, Photographic Mode, Temp -10C, Bin 1×1
Ha: 56×600″ (9.3h) Gain 60, High Gain Mode, Temp -10C, Bin 1×1
OII: 44×600″ (7.3h) Gain 60, High Gain Mode, Temp -10C, Bin 1×1
SIII: 49×600″ (8.2h) Gain 60, High Gain Mode, Temp -10C, Bin 1×1
Integration 26h 15m
Darks 50
Flats 20 per Filter
Flat Darks 40
Bortle Dark-Sky Scale: 2
RA center 38.002
DEC center 61.4969
Pixel scale 3.76
Resolution 6280 x 4210
Locations Sirus 3.5m Observatory, Carbondale Colorado
Data source Backyard
Seeing Average
Post Processing Techniques PixInsight to Photoshop to Lightroom
Heart Nebula (IC 1805) was last modified: April 7th, 2025 by Matt Shetzer