File:Second parameter problem.png
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Size of this preview: 600 × 600 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,152 × 1,152 pixels.
Original file (1,152 × 1,152 pixels, file size: 54 KB, MIME type: image/png)
Captions
Captions
Metallicity — blueness diagram for some globular clusters, illustrating the second parameter problem
Summary
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| Description |
English: Metallicity — blueness diagram for some globular clusters, illustrating the second parameter problem. Blueness depends of horizontal branch morphology and equals number of stars bluer than RR Lyrae stars minus number of stars redder than RR Lyrae, divided on number of stars on horizontal branch.
This diagram is a reproduction of the similar one from this website: http://heritage.sai.msu.ru/ucheb/Samus/2_5.html
Русский: Диграмма металличность — голубизна для шаровых скоплений, иллюстрирующая проблему второго параметра. Голубизна — параметр, зависящий от морфологии горизонтальной ветви и равный разности звёзд на голубом и красном конце горизонтальной ветви, делённой на общее количество звёзд на горизонтальной ветви.
Эта диаграмма является репродукцией аналогичной с этого сайта: http://heritage.sai.msu.ru/ucheb/Samus/2_5.html |
| Date | Unknown date |
| Source | Own work |
| Author | Vallastro |
Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:14, 12 March 2021 | | 1,152 × 1,152 (54 KB) | Vallastro (talk | contribs) | Font size increased (again) |
| 15:40, 12 March 2021 |  | 1,152 × 1,152 (41 KB) | Vallastro (talk | contribs) | Font size increased | |
| 12:06, 23 February 2021 |  | 1,025 × 969 (23 KB) | Vallastro (talk | contribs) | Uploaded own work with UploadWizard |
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