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Jon Greif

Location of Photo:

Deep Sky Chile, Rio Hurtado Valley, Chile remotely via iTelescope.net from Alpine, CA, USA

Date/Time of photo:

July 27, 2023, between 10 pm and midnight local time.


Takahashi Epsilon 180ED f2.8, 500mmFL, ZWO ASI2600MM Camera, LRGB, Ha, OIII, SII Filters QHY miniguidescope f/4.3 with Lodestar Pro guide camera . Paramount MyT Mount. Processed in Pixinsight.


Clouds and the waxing gibbous moon prevail in Alpine's night skies this week, so I decided to process some data collected remotely from Deep Sky Chile at Rio Hurtado Valley, Chile, via iTelescope.net. At the top of this image (South) is the Lagoon Nebula (M8) and at the bottom is the Trifid Nebula (M20). Both are located in the steamy portion of the Teapot in the constellation Sagittarius, one of the densest areas of the Milky Way. The red color is ionized hydrogen gas, which is very bright. The blue color is known as "reflection" nebula and is ionized sulfur gas being lit up by the hydrogen gases. Both nebulae are intense star forming areas about 4100 light years from Earth.