Stewart Sharpless (March 29, 1926 - January 19, 2013) was an astronomer who provided fundamental knowledge on the structure of our galaxy by measuring distances to "H II" (pronounced 'H - two') regions throught the Milky Way. H II regions are emission nebula, large clouds of gas that glow red from ionized hydrogen (H I is neutral hydrogen and does not emit light). New stars form from these clouds. Eventually Sharpless compiled a catalog of 313 of these objects. A few of them are actually reflection nebula, containing large amounts of dust and gas, and appear more blue from the light of nearby stars reflecting off the dust. Of the 313 objects in the Sharpless Catalog, here are the ones I have imaged so far. Click any thumbnail to see the full-size image and a description of the object. Place the mouse cursor over any words highlighted in green for more information. For mobile device users, all the highlighted terms are listed under the Glossary tab. To see all the nebulae I've imaged, click the Nebulae tab above. |
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Sharpless 2-25
Lagoon Nebula
(M8)
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Sharpless 2-30
Trifid Nebula
(M20)
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Sharpless 2-45
Swan Nebula
(M17)
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Sharpless 2-49
Eagle Nebula
(M16)
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Sharpless 2-101
(Tulip Nebula)
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Sharpless 2-103
(Veil Nebula)
(eastern half)
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Sharpless 2-104
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Sharpless 2-105
Crescent Nebula
(NGC 6888)
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Sharpless 2-105
Crescent Nebula
(wide-field)
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Sharpless 2-111
(Veil Nebula)
(western half)
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Sharpless 2-112
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Sharpless 2-115, 116
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Sharpless 2-117
North American Nebula
(NGC 7000)
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Sharpless 2-119
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Sharpless 2-124
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Sharpless 2-124
(wide-field)
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Sharpless 2-125
Cocoon Nebula
(IC 5146)
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Sharpless 2-129
Flying Bat Nebula
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Sharpless 2-131
Garnet Star Nebula
(IC 1396)
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Sharpless 2-142
Wizard Nebula
(NGC 7380)
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Sharpless 2-155
Cave Nebula
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Sharpless 2-157
Lobster Claw Nebula
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Sharpless 2-162
Bubble Nebula
(NGC 7635)
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Sharpless 2-171
(NGC 7822 and Cd 214)
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Sharpless 2-173
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Sharpless 2-173
(wide-field)
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Sharpless 2-184
(NGC 281)
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Sharpless 2-185
Ghost of Cassiopeia
(IC 63 and 59)
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Sharpless 2-185
(wide-field)
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Sharpless 2-187
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Sharpless 2-188
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Sharpless 2-190
Heart Nebula
(IC 1805)
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Sharpless 2-199
Embryo Nebula
(IC 1848)
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Sharpless 2-206
(NGC 1491)
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Sharpless 2-220
California Nebula
(NGC 1499)
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Sharpless 2-229
Flaming Star Nebula
(IC 405)
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Sharpless 2-229, 230, 234
and 236
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Sharpless 2-240
Spaghetti Nebula
(Simeis 147)
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Sharpless 2-244
Crab Nebula
(M1)
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Sharpless 2-244
Crab Nebula
(narrowband)
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Sharpless 2-248
Jellyfish Nebula
(IC 443)
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Sharpless 2-248, 249
Jellyfish Nebula
(wide-field)
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Sharpless 2-273
Cone Nebula
(NGC 2264)
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Sharpless 2-274
(Abell 21, Medusa Nebula)
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Sharpless 2-275
Rosette Nebula
(NGC 2237-39)
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Sharpless 2-277
Horsehead Nebula and IC 434
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Sharpless 2-279
Running Man
(NGC 1977)
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Sharpless 2-281
Great Orion Nebula
(M42)
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Sharpless 2-298
Thor's Helmet
(NGC 2359)
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