James Janusz 2000 thru 2021 All Rights Reserved |
Telescope: Stellarvue SV80-25 80mm Triplet & SV Focal Reducer | Designation: The Double Cluster (also known as Caldwell 14) consists of the open clusters NGC 869 and NGC 884 (often designated h Persei and ? Persei, respectively), which are close together in the constellation Perseus. Both visible with the naked eye, NGC 869 and NGC 884 lie at a distance of 7,500 light years. Greek astronomer Hipparchus cataloged the object (a patch of light in Perseus) as early as 130 BCE. To Bedouin Arabs the cluster marked the tail of the smaller of two fish they visualized in this area, and it was shown on illustrations in Abd al-Rahman al-Sufi's Book of Fixed Stars. However, the true nature of the Double Cluster was not discovered until the invention of the telescope, many centuries later. In the early 19th century William Herschel was the first to recognize the object as two separate clusters. The Double Cluster is not included in Messier's catalog, but is included in the Caldwell catalogue of popular deep-sky objects |
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Mount: Ioptron IEQ30 Pro | Constellation: Perseus |
Camera: ZWO ASI294 Pro OSC with Orion Triad filter | Imaged With ZWO ASIAIR Pro |
Guiding:ZWO 120 Mini Guider | Type: Open Star Clusters. |
Exposure Data: 43 - 2 minute sub exposures with the Triad Filter. | Position: R.A. 02h 20m 60s , Dec +°57 09' 30" |
Processed using PixInsight and PhotoShop image processing | Date: September 2021 |
Data Acquisiton, Reduction and Processing by Jim Janusz | Imaging Location: Roadrunner Observatory, backyard, Palm Desert CA |
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