Contents of this tag:

1. 1 2016-06-08T15:25:53-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce Reproducing the Images 10 gallery 2016-09-12T19:27:03-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce
2. 1 media/UA36/UA36_Bx463B_spiral1899.jpg 2016-05-11T22:14:56-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490 Great Spiral Nebula (M51), photographer unknown (likely James Keeler), 1899. 9 This is a four-hour exposure of the Great Spiral Nebula using the 36" Crossley reflector. Note the loss of detail described by Perrine or "faint nebulosity" described in the letters here; compare with the image of the spiral galaxy from 1914. N.B.: This is now known as the Whirlpool Galaxy. Astronomers did not yet understand the difference between nebulae and galaxies, believing that they were of the same nature. Most thought that all of these distant structures were contained within the Milky Way galaxy itself. The difference was confirmed in the 1920s; the work of one of the Lick's astronomers, Heber Curtis, contributed in part to this development. media/UA36/UA36_Bx463B_spiral1899.jpg plain 2016-06-06T16:06:11-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce
3. 1 2016-06-05T16:53:29-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce Glass plate positive of Spiral Nebula, photographer unknown, 1914. 4 media/ua0036_glp_1064_spiral.jpg plain 2016-06-17T11:28:40-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce
4. 1 media/UA36/UA36_Bx463B_andromeda1894.jpg 2016-05-11T22:14:56-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490 Andromeda Nebula, photographed by Edward Barnard, 1894. 4 Professor Edward Barnard produced most of the Lick's early photographic images. He used the smaller Willard telescope, fitted with the type of lens typically used to make portraits, to create this image. N.B.: This is now known as the Andromeda Galaxy. Astronomers did not yet understand the difference between nebulae and galaxies, believing that they were of the same nature. media/UA36/UA36_Bx463B_andromeda1894.jpg plain 2016-06-06T10:36:11-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce
5. 1 media/UA36/UA36_Bx463A_Orion NebulaDrawings1844026.jpg 2016-05-11T22:14:56-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490 Illustrations of Orion Nebula, Frederik Kaiser (astronomer), 1844. 2 Created at the Leiden Observatory in the Netherlands. media/UA36/UA36_Bx463A_Orion NebulaDrawings1844026.jpg plain 2016-06-05T19:39:36-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce
6. 1 2016-05-11T22:14:46-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490 Correspondence with Photogravure and Color Company about nebulae prints, 1905. 1 media/UA36/UA36_Bx113_nebulaecorres_Campbell_1905.jpg 2016-05-11T22:14:46-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490
7. 1 2016-05-11T22:14:46-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490 Correspondence with Photogravure and Color Company about nebulae prints, 1905. 1 media/UA36/UA36_Bx113_nebulaecorres_Campbell_1905_p2.jpg 2016-05-11T22:14:46-07:00 Craig Dietrich 2d66800a3e5a1eaee3a9ca2f91f391c8a6893490
8. 1 2016-06-03T16:52:52-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce Note about the term "nebula" 1 plain 2016-06-03T16:52:52-07:00 Christine Turk b279a3dcf419860f915007f04f08e6fc0f8662ce