The Double Cluster in Perseus
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The double cluster is the beautiful pair of NGC869 (h Persei) and NGC884 (χ (chi) Persei), containing over 300 blue-white super-giant s and a scattering of red super-giants. The cluster is also blue shifted as it inches its way 24 miles closer to earth every second. It is visible to the naked eye and lurks near the distinct W of Cassipeia.
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Image details
| Telescope: | William Optics Redcat 71 | |
| Length: | 350mm | |
| Aperture: | 71mm | |
| F-stop: | f/4.66 | |
| Sessions: | 1 | |
| Captured: | 2023-11-24 to 2023-11-24 | |
| Lights: | 20 | |
| Exposure: | 180 | |
| Total exposure: | 60 m | |
| Ra: | 2h 20m 01.3s | |
| Dec: | +57° 07' 17.214 | |
| Size: | 106.80 x 076.20 arcmin | |
| Radius: | 001.094 deg | |
| Scale: | 001.53 arcsec/pixel |
Tags
The star Misam al Thurayya I (χ Per) 7 Per The star 10 Per NGC869 h Persei Cluster NGC884 chi Persei Cluster
NGC884 and NGC869: Two Red and Blue Clusters
2021-07-10