Gallery Index

June 2020 revision

M13

Hercules Globular Cluster

A short 2020 test frame on M13

TypeCluster ConstellationHercules SeasonSummer PaletteNatural color Archive NoteJune 2020 revision
Image Details

Capture summary

Catalog M13

Cluster in Hercules

Total Exposure 10m

Broadband OSC

Filters L-Pro

Broadband OSC

Frame 2020

Summer target / wide composition

Exposure Breakdown 10m
  • L-Pro 10m 2 x 300s
  • Totals 10m

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 compact 2020 M13 test frame from the archive, kept alongside the deeper 2021 revision.

Acquisition Data

Technical capture details from the public AstroBin record for this image. View on AstroBin.

  • L-Pro: 2 x 300s, 10m
  • Totals: 10m

Equipment and Software

  • Telescope: Explore Scientific ED APO 127mm f/7.5 FCD-1 Alu 2" R&P Focuser
  • Camera: ZWO ASI071MC Pro
  • Mount: iOptron CEM60
  • Software: PixInsight
  • Guiding optics: Orion ST80
  • Guiding camera: ZWO ASI290MM Mini

Target Planner

Cluster in Hercules; best planned for June through August from New Jersey.

Best season June through August

Summer targets often improve later at night as the Milky Way climbs higher.

Good from NJ Late spring through early autumn

Assumes a New Jersey backyard horizon and evening imaging.

Object type Cluster

Stable seeing helps star color, roundness, and tight cluster detail.

Constellation Hercules

M13 is listed here in Hercules.

Moon tolerance More forgiving than faint nebulae or galaxies.

Current frame: Natural color / Broadband OSC.

Planning from Sewell, NJ

Calculating target altitude and moon context.

Check your location Open full planner

Use the full planner to enter a ZIP code, choose a date, and compare the target from your sky.

Planning values are approximate and update in your browser.

Planning site Sewell, NJ 39.7700, -75.1400
Current altitude ...

Based on the current time.

Target transit chart Compact altitude curve for this target over a full day. Target ...

Green marks usable dark-sky altitude.

Next transit ...

Next upper transit.

Rise / set ...

Approximate horizon crossing.

Moon now ...

Moon phase and altitude.