M13 · HERCULES CLUSTER JUN 2025
§ DEEP-SKY · TARGET
M13
Hercules Cluster
- TYPE
- Globular cluster
- CONSTELLATION
- Hercules
- DISTANCE
- 22,200 ly
- MAGNITUDE
- +5.8
- APPARENT SIZE
- 20'
ACQUISITION
DATE
Jun 2025
LOCATION
Columbus, OH · Bortle 5
INTEGRATION
~4h
PALETTE
Broadband
FILTERS
UV/IR cut
300,000 stars packed into a sphere 145 light-years across. The core is dense enough that individual stars blur together at anything less than excellent seeing.
§ 01 · PROCESSING
Workflow
- Stacked in PixInsight (WBPP) with calibration frames
- BlurXTerminator deconvolution
- NoiseXTerminator noise reduction
§ 02 · GEAR
Equipment
- SCOPE
- 3D-printed 114mm f/4 Newtonian astrograph
- CAMERA
- ASI533MC Pro
- MOUNT
- Proxisky Umis20s
- FILTERS
- UV/IR cut
- GUIDING
- SVBony 60mm guide scope · 22mm mini guide cam · PHD2