M4 and Antares in Scorpius and the Rho Ophiuci Cloud Complex.

Hover over the picture for an annotated version

Date:  30 May 2024

FOV:  12° 38' × 8° 25'; the angular size of M4 is about 23'

Telescope:  Canon EF 75-300mm Telephoto Zoom Lens

Guiding:  tracking only

Computer:  ASIair pro Raspberry Pi

Mount:  iOptron CEM40

Camera:  Canon EOS Rebel T6s

Pixel size:  3.70 μm

Resolution:  7.888 arcsec/pixel

Filter:  no filter

Stacking:  one hundred and twenty 120 second frames using Pixinsight

Total Time:  4 hours

Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, Msk, GHS, HST,

PM Msk + GHS + HST, StarXT, Sat, PM screen mode, Scale

Location:  Darling Hill Observatory near Vesper, NY