Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  7 chi Per  ·  Double cluster  ·  Misam  ·  NGC 869  ·  NGC 884  ·  The star 7Per  ·  chi Persei Cluster  ·  h Persei Cluster
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Double Cluster h & chi persei, Thomas Richter
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Double Cluster h & chi persei

Getting plate-solving status, please wait...
Double Cluster h & chi persei, Thomas Richter
Powered byPixInsight

Double Cluster h & chi persei

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Description

I want to show you this beautiful double cluster h and chi in constellation perseus.

The picture was taken from my yard in Nürnberg.

I hope you enjoy it.

Thanks for watching !

Object description (wikipedia.org) :

The Double Cluster (also known as Caldwell 14) is the common name for the naked-eye open clusters NGC 869 and NGC 884 (often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus. NGC 869 and NGC 884 both lie at a distance of 7500 light years. NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; however, later research has shown both clusters are surrounded with a very extensive halo of stars, with a total mass for the complex of at least 20,000 solar masses. Based on their individual stars, the clusters are relatively young, both 12.8 million years old. In comparison, the Pleiades have an estimated age ranging from 75 million years to 150 million years. There are more than 300 blue-white super-giant stars in each of the clusters. The clusters are also blueshifted, with NGC 869 approaching Earth at a speed of 39 km/s (24 mi/s) and NGC 884 approaching at a similar speed of 38 km/s (24 mi/s). Their hottest main sequence stars are of spectral type B0.

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  • Double Cluster h & chi persei, Thomas Richter
    Original
  • Double Cluster h & chi persei, Thomas Richter
    B
  • Double Cluster h & chi persei, Thomas Richter
    C
  • Final
    Double Cluster h & chi persei, Thomas Richter
    D

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Double Cluster h & chi persei, Thomas Richter

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Star Clusters