Which size is right for your space?
- Living room (above sofa): 48x32
- Bedroom (above headboard): 36x24 or 48x32
- Dining room: 36x24 or 48x32, depending on wall size
- Home office or den: 30x20 or 36x24
- Large foyer or entryway: 48x32
- Hallway, bathroom, or gallery wall: 18x12 or 24x16
When in doubt, go bigger than you think. The art, including any frame, should fill about ⅔ the width of the furniture beneath it. Sizes listed are the photograph itself; framed paper prints, with a 2" mat and frame, are about 3–5" larger in each direction.
See it on your wall before you order
Use the buttons below the image:
- Wall Preview: upload a photo of your room and see this print on your wall in your chosen size and frame.
- Live Preview AR: on your phone or tablet, point your camera at your wall and see the print there in real time.
Framed prints arrive ready to hang
Framed paper prints are matted with a 2" white mat and protected by non-glare acrylic, so the image stays clear without reflections from windows or lights. Acrylic is lighter and safer to ship than glass, and every framed print arrives with hanging hardware already attached.
MetalPrints with a float mount or frame also arrive ready to hang.
Questions about size, material, or framing? See the FAQ or email me a photo of your wall, and I'll suggest a size and finish.
About this photograph
Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822, and along with the Little Rosette Nebula (Sh2-170) at the bottom, form what is commonly called the 'Cosmic Question Mark.' At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star-forming region lies about 3,000 light-years away. This colorful skyscape highlights bright edges and dark shapes within the nebula. The image includes data from narrowband filters, mapping emissions from atomic oxygen, hydrogen, and sulfur into blue, green, and red hues. The atomic emission is powered by energetic radiation from the hot stars, whose powerful winds and radiation also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cut off from their reservoir of star stuff.

I chose to render the photograph of the Cosmic Question Mark using SHO, otherwise known as the Hubble color palette. See below in the Full Description section for an explanation of SHO color palette.
This photograph is an eight-panel mosaic I captured over three weeks. Each panel took over two nights, and about 120 images were stacked. This is what I was able to capture in my Bortle 8 urban skies in my backyard in Phoenix, Arizona.
NOTE:
The majority of photographs of nebula are in a false color palette. False-color photographs of nebulae are essentially color (RGB) photographs whose color channels have been mapped to specific emission lines. In these images, each color can represent a specific element. In other words, a false-color image of a nebula tells us exactly what it’s made of. There are many emission lines, but the three most photographed by astronomers are hydrogen-alpha, oxygen-III and sulfur-II. These emission lines are captured by using narrowband filters which only let through the light at very specific wavelengths, typically most of my photographs are taken with filters allowing a bandwidth of 3µm.
|
Element
|
Emission line
|
Wavelength
|
Color
|
|
Hydrogen
|
Hα
|
656.3 nm
|
Red
|
|
Oxygen
|
O-III
|
500.7 nm
|
Blue/Green
|
|
Sulfur
|
S-II
|
672.4 nm
|
Red
|

Mapping Hα, O-III and S-II to red, green and blue is problematic when two of them are red, one is blue/green, and none is pure blue. Astronomers deal with this by using false color — one or more of these elements is going to have to take a hit for the team and take on an unnatural hue. The Hubble palette assigns red to S-II, green to Hα, and blue to O-III: red is accurate, green and blue are false. This photograph uses the Hubble color palette - Sulfur II, Hydrogen alpha and Oxygen III (SHO) - hence the golds and blues you find in the photograph.