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NGC
869 and NGC 884 - the Double Cluster - lie 7,500 light years away
in the constellation of Perseus. They are relatively young (12.8
million years old) and contain more than 300 super-giant stars.
Both clusters are blue-shifted, meaning that they are approaching
us vs. moving away. In this case, the rate of approach is 24 miles-per-second.
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| Telescope: |
Pentax 75 EDHF
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| Camera: |
Modified
Canon 650D; ISO 800; Raw capture |
| Exposures: |
24 @ 5 min. |
| Mount: |
Orion Sirius EQ-G |
| Guiding: |
Orion SSAG on Stellarvue 50mm finder scope |
Note: |
Images
were focused using the camera's live view. They were calibrated,
aligned, and combined in ImagesPlus. The final image was adjusted
in Photoshop.
Taken
from my back yard on 11/13/15. Temp: 30 F
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