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Jon Greif

Location of Photo:

Alpine, CA, USA

Date/Time of photo:

April 19, 2024, 3:00 pm PDT


SeeStar S50 smart scope and camera. Processed with Lynkeos and Pixinsight on a MacBook Pro.


The SPACE WEATHER PREDICTION CENTER of the NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA) issued a G3 Geomagnetic Storm Warning for today with possible effects on power grids, satellite ops, and GPS data, as well as increased auroral activity over the northern US from NY state to Washington state. There was an unusually large number of sunspots today -- 247, up 48 from yesterday. The monthly average has been about 100.