2023-09-17:  Antares and Rho Ophiuchus Region

This is the Antares and Rho Ophiuchus region with NGC6121 M4 and NGC6093 M80.  Imaged with a Nikkor 200 mm focal length F/4 lens, ZWO ASI2600MC Pro, Celestron Advanced VX mount, QHY mini autoguider with QHY-LII guide camera.  Controlled with SGP 4.   Camera temperature at 0 C.  Processed using PixInsight 1.8.  16 Lights at 5 minute exposures = 1 hour 20 min total exposure.

The image shows significant chromatic abberation.  I should have used a UV and IR cutoff filter that is better than the filter used in the camera.

This object was imaged on June 18, 2023 from the Rocky Mountain Star Stare, near Gardner CO.