Unprocessed Astrophotography Image Data Files

For the following images, calibrated astrophotography data files in FITS format can be downloaded. Darks, Bias and Flats have been applied but the image data is unprocessed and unstacked. If you use this data to create an image and place the image on your web site I only request that you include the following text: "Data Acquisition by Douglas Gardner, www.remote-astrophotography.com".

Processing requires image stacking software such as DeepSkyStacker and image processing software such as Photoshop or PixInsight. The data set for a single object is contained in a ZIP file.

I'd like to see any images created from this data, please email me.


Object Telescope Pixel Array Filter Exposure Size
WLM Zip File

DDO 221
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 12 x 3 minutes. The object's low surface brightness limits noise reduction. 171 MB WLM
M33 Zip File

Triangulum Galaxy
Takahashi 150mm Refractor, 1095mm FL 4008 x 2672 LRGB and Ha Lum: 9 x 2 minutes, RGB + Ha 6 x 2 minutes each. 129 MB M33
M51 Zip File

Whirlpool Galaxy
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only 7 x 4 minutes+5 x 10 minutes luminance, 10 x 3 each RGB, HA data from Bill Synder. Seeing 1.7" FWHM. 45 MB M51
M63 Zip File

Sunflower Galaxy
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 6 x 4 minutes. Seeing 1.7" FWHM. 42 MB M63
M81 Zip File

Bode's Galaxy
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 RGB in a single layer Lum:16x3m R:6x3m G:6x3m B:6x3m HA 159 MB M81
M83 Zip File

Southern Pinwheel
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 9 x 3 minutes. 139 MB M83
M92 Zip File

NGC 6341
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 9 x 3 minutes. 38 MB M92
M101 Zip File

Pinwheel Galaxy
Planewave 20" CDK reflector, 2280mm FL with 0.66 Focal Reducer 4008 x 2672 Luminance only Lum: 8 x 4 minutes, Seeing 1.3" FWHM. Imaged to about mag 21.5 92 MB M101
M106 Zip File

NGC 4258
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 8 x 4 minutes. Seeing 1.5" FWHM. 51 MB M106
NGC 253 Zip File

Sculptor Galaxy
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 6 x 2 minutes, RGB 1 x 2 min each on Planewave CDK 20". 86 MB NGC
NGC 613 Zip File

ESO 413-11
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 8 x 2 minutes. 112 MB NGC
NGC 891 Zip File

Caldwell 23
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 4 x 4 minutes. 27 MB NGC
NGC 1232 Zip File

Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 12 x 5 minutes. 107 MB NGC
NGC 1365 Zip File

Great Barred Spiral
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 5 x 2 minutes 69 MB NGC
NGC 1672 Zip File

PGC 15941
Planewave 17" CDK Reflector, 2912mm FL 4096 x 4096 Luminance only Lum: 11 x 2 minutes 156 MB NGC
NGC 2403 Zip File

Caldwell 7
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 10 x 3 minutes, imaged to 21st mag. 65 MB NGC
NGC 2903 Zip File

PGC 27077
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 5 x 4 minutes. Imaged to approx 20.5 mag. 33 MB NGC
NGC 3372 Zip File

Eta Carinae Nebula
Takahashi SKY90 90mm Refractor, 417mm FL 1600 x 1200 RGB in a single layer 6 x 3 minutes. 43 MB NGC
NGC 4725 Zip File

One-Armed Spiral
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 8 x 3 minutes. Seeing 1.7" FWHM. 49 MB NGC
NGC 7331 Zip File

Caldwell 30
Planewave 17" CDK reflector, 1940 mm FL 3072 x 2048 Luminance only Lum: 9x3m R:3x3m G:3x3m B:3x3m, HA:1x10m (ngc7331_HA_dr4.fits) from the Kitt Peak National Observatory 2.1-meter telescope to highlight the H-II regions in red. 58 MB NGC