[13-07-2015 por Ricardo Hueso Alonso]

Damian Peach comparte una captura de Neptuno realizada el 13-07-2015 por Ricardo Hueso Alonso desde Calar Alto

Bright spot discovered on Neptune
During the course of imaging Neptune last night with the 2.2metre telescope at Calar Alto Observatory, Spain, Ricardo Hueso Alonso and colleges discovered a brilliant spot on Neptune.
The image posted here (with permission) is dated July 13th at 03:16:40 UTC and taken in I band. This coresponds to a longitude of 157.3deg on the planet.The spot shows good contrast in the I band so large amateur telescope operating with typical IR 700nm long pass filters may be able to capture this feature under good conditions.




buena caza chicos

https://arxiv.org/pdf/1709.08854

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Cazada con un 320mm , ánimos chicos que podéis .




Efemérides  en UT  

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Series of Keck II observations of Neptune in band H over July and August
2015 showing the bright spot on two different dates and other systems of clouds. Images
oriented like in Fig. 1. (E) Cylindrical map of the planet from images acquired in 29 and 30
August. Note the shape of the bright spot 2015-A similar to the shape observed in Palomar
images.

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