La Cañada Observatory, is an initiative by Juan Lacruz, the observatory started astrometric operations in the summer of 2002, it is registered as station J87 in the Minor Planet Center of the International Astronomical Union.

The Observatory also participates in the studies on minor bodies promoted by the Group on Meteorites, Minor Bodies, and Planetary Sciences of the Institute of Space Sciences (CSIC-IEEC).

Sunday, September 2, 2007

La Cañada, 2007 Sep 1, Globular cluster M15

LX200 30cm F10 + STL1001E 15 sec.

Globular clusters are groups of about 100.000 stars gravitationally linked into a compact spheric configuration. These clusters, located in the halo of most galaxies, orbit the nucleus not just in the principal galaxy plane but at any angle. They were formed at the time the galaxy was born, their stars are population II (the oldest observed in the galaxy). Most of them, which have very low metallicity , are in late states of evolution giving a characteristic red color to the cluster.

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