Capture summary
Cluster in Hercules
Natural color
Broadband RGB
Summer target / square composition
Detailed filter totals have not been entered for this image yet.
Same target, different years.
Older revisions stay in the archive so you can see how the target changed with different equipment, processing, and experience.
A dense old cluster, resolved into a spray of stars that thickens toward the center.
Target Planner
Cluster in Hercules; best planned for June through August from New Jersey.
Summer targets often improve later at night as the Milky Way climbs higher.
Assumes a New Jersey backyard horizon and evening imaging.
Stable seeing helps star color, roundness, and tight cluster detail.
M13 is listed here in Hercules.
Current frame: Natural color / Broadband RGB.
Calculating target altitude and moon context.
Use the full planner to enter a ZIP code, choose a date, and compare the target from your sky.
Based on the current time.
Green marks usable dark-sky altitude.
Next upper transit.
Approximate horizon crossing.
Moon phase and altitude.