File:Polaris comp s (25006858485).jpg
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Summary
| Description |
Polaris star Credit: DSS / Giuseppe Donatiello (J2000) RA 02h 31m 48.7s Dec +89° 15′ 51″ Mag(v) = 1.98v Polaris (α Ursae Minoris), the Pole Star, is the brightest star in Ursa Minor, so called because it is very close to the North Celestial Pole. It is a multiple star with five components: α UMi Aa a supergiant with two smaller companions α UMi B and α UMi Ab. In the stellar system are present other two distant components, α UMi C and α UMi D. Polaris A is a low amplitude classical Cepheid variable. |
| Date | |
| Source | Polaris comp s |
| Author | Giuseppe Donatiello |
Licensing
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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This image was originally posted to Flickr by gjdonatiello at https://flickr.com/photos/133259498@N05/25006858485. It was reviewed on 30 August 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-zero. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:36, 30 August 2017 | | 3,286 × 3,287 (4.09 MB) | JotaCartas | Transferred from Flickr via Flickr2Commons |
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