Guides/Moon/Weighted Quality Stacking

How to Stack Moon Video with Weighted Quality Stacking

MoonIntermediate Level15 min read

Stack lunar videos and reveal stunning crater detail. Process Moon videos online with our free tool for sharp, detailed results.

Advanced Mode Tutorial

This guide covers manual configuration in Advanced Mode where you select the stacking algorithm and fine-tune all parameters. For automatic processing, try Quick Mode - it detects your video type and applies optimal settings automatically.

TL;DR

Want full control over your Moon processing? Weighted Quality Stacking is a Intermediate-level algorithm. Your sharpest frames contribute most - ideal for variable seeing It works especially well for Craters with central peaks (Tycho, Copernicus, Plato). This guide shows you how to configure Weighted Quality Stacking in Advanced Mode for optimal results.

Introduction

Moon is one of the most rewarding targets for amateur astrophotographers. With its Craters with central peaks (Tycho, Copernicus, Plato) and Maria (dark basaltic plains) - Sea of Tranquility, etc., even modest equipment can capture impressive detail. However, raw video footage straight from your camera rarely shows the full potential of your observations.

This is where Weighted Quality Stacking comes in. By intelligently combining hundreds or thousands of video frames, Weighted Quality Stacking Measures sharpness of each frame using Laplacian variance. The result? A single image with dramatically improved detail and reduced noise.

In this guide, you'll learn exactly how to use Weighted Quality Stacking to process your Moon videos using Uranum AstroStack AI - a cloud-based tool that replaces complex desktop software like PIPP, AutoStakkert, and Registax with a simple, browser-based workflow.

Whether you're using a smartphone through an eyepiece or a dedicated planetary camera, this tutorial will help you achieve professional-quality results.

What is Weighted Quality Stacking?

Gives sharper frames more influence in the final result (up to 3x weight). Good seeing moments dominate while poor frames still contribute some signal. Ideal when your video has varying quality due to atmospheric turbulence.

How It Works:

  1. 1Measures sharpness of each frame using Laplacian variance
  2. 2Sharp frames get up to 3x more weight in the final average
  3. 3Blurry frames contribute less, preserving detail from good moments
  4. 4Weights are normalized to prevent any single frame dominating

Best For:

  • Nights with variable atmospheric seeing (most common scenario)
  • Capturing those brief moments of excellent clarity
  • Jupiter cloud bands and Saturn rings where micro-detail matters
  • Videos longer than 30 seconds with varying quality

Not Recommended For:

  • Very short captures (<500 frames) - not enough variation to matter
  • Uniformly excellent seeing - all frames similar quality
  • Smartphone video where compression limits sharpness detection

Why Use Weighted Quality Stacking for Moon?

Moon presents unique challenges for astrophotographers: Very bright - easy to overexpose and lose detail and Large angular size requires mosaics for full disk. Weighted Quality Stacking is a viable option for Moon because it effectively addresses these challenges.

Using Weighted Quality Stacking with Moon

  • Feature Enhancement: Moon's Craters with central peaks (Tycho, Copernicus, Plato) benefit from Weighted Quality Stacking's ability to Nights with variable atmospheric seeing (most common scenario).
  • Challenge Mitigation: The Very bright - easy to overexpose and lose detail is handled well because Weighted Quality Stacking Sharp frames get up to 3x more weight in the final average.
  • Skill Level: As a Intermediate-level algorithm, Weighted Quality Stacking is suited for users who want more control over results.

Step-by-Step Tutorial

Follow these steps to process your Moon video using Uranum AstroStack AI. The entire process takes about 5-10 minutes.

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Step 1: Capture Your Moon Video

For best results, capture 2,000-5,000 frames per region at 60-100 fps. Maximum duration: 5+ minutes (no rotation issue). Use 3-10ms exposure at Low (80-180) gain.

Tip: Best detail at the terminator - dramatic shadows reveal topography

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Step 2: Upload Your Moon Video

Drag and drop your Moon video file into Uranum. We support AVI, SER, MP4, MOV, and MKV formats (up to 1.5GB free, 4GB Starter, 10GB Pro).

Tip: SER format preserves maximum quality. MP4/MOV have compression artifacts but still work well.

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Step 3: Select Moon as Object Type

Choose "Moon" from the object type dropdown. This applies optimized defaults including stack percentage (40-50%) for average seeing and enhancement settings tuned for Craters with central peaks (Tycho, Copernicus, Plato).

Tip: Quick Mode will auto-detect optimal settings. Use Advanced Mode only if you need specific control.

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Step 4: Choose Your Mode

Quick Mode: Automatic processing with intelligent frame selection - recommended for most users. Advanced Mode: Manual control over Weighted Quality Stacking and all parameters.

Tip: Quick Mode uses knee-detection to find optimal stack percentage automatically.

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Step 5: For Advanced Mode: Select Weighted Quality Stacking

In the Stacking section, choose "Weighted Quality Stacking". Your sharpest frames contribute most - ideal for variable seeing

Tip: Weighted Quality Stacking is Intermediate-level. Nights with variable atmospheric seeing (most common scenario).

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Step 6: Set Stack Percentage Based on Seeing

Adjust based on your seeing conditions: Poor (25-35%), Average (40-50%), Good (50-65%), Excellent (65-80%). When in doubt, start with 40-50%.

Tip: Lower percentage = sharper but noisier. Higher percentage = smoother but potentially softer.

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Step 7: Start Processing

Click "Start Processing". Uranum analyzes frames, ranks them by quality, stacks the best ones, and applies enhancements. Processing typically takes 2-5 minutes.

Tip: Track progress in real-time. Processing time depends on frame count and your tier.

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Step 8: Download Your Result

Compare before/after using the slider. Download in PNG (8/16-bit), TIFF (16-bit), or FITS (32-bit for scientific use).

Tip: 16-bit TIFF preserves the most data for further processing in PixInsight, Photoshop, etc.

Recommended Settings for Moon + Weighted Quality Stacking

These are recommended starting values for Moon videos with Weighted Quality Stacking in Advanced Mode. Use them as a baseline and adjust based on your specific video quality and conditions.

Recommended Starting Settings
SettingValueExplanation
Capture Duration5+ minutes (no rotation issue)Moon has specific rotation limits. Exceeding this causes motion blur that stacking cannot fix.
Frame Count Target2,000-5,000 frames per regionMore frames = more to choose from. Capture at 60-100 fps for optimal sampling.
Stack Percentage (Average Seeing)40-50%For typical seeing conditions, stack 40-50% of frames. Adjust based on your seeing: poor (25-35%), average (40-50%), good (50-65%), excellent (65-80%). Quick Mode auto-detects optimal percentage.
Stacking AlgorithmWeighted Quality StackingYour sharpest frames contribute most - ideal for variable seeing
Wavelet PresetBalancedMoon benefits from balanced sharpening. Quick Mode auto-selects based on image sharpness analysis.
Output Format16-bit PNG or TIFF16-bit preserves maximum tonal information. Use for further processing in other software.
Quality WeightingAutomatic (up to 3x)Sharp frames automatically contribute up to 3x more than blurry frames. No manual adjustment needed.

Capture Settings Reminder

For best results with Moon, capture at 60-100 fps with 3-10ms exposure and Low (80-180) gain.

Tips for Best Results

Capture Tips for Moon

  • Best detail at the terminator - dramatic shadows reveal topography
  • Shoot mosaics: capture overlapping regions, stitch later
  • Use CLAHE processing for local contrast in craters
  • Moon tolerates higher stack percentages due to brightness

Processing Tips

  • Start with Quick Mode to see baseline results
  • Use Advanced Mode to fine-tune wavelets and sharpening
  • Export as 16-bit TIFF for maximum quality
  • Compare different algorithms to find your preference

Common Mistakes to Avoid

  • Don't over-sharpen - it creates artifacts and noise halos
  • Don't stack 100% of frames - quality matters more than quantity
  • Don't capture during poor seeing - wait for stable air
  • Don't forget to let your telescope acclimate to outside temperature

Frequently Asked Questions

Common questions about planetary video stacking and processing.

Related Guides

Explore more tutorials to expand your planetary imaging skills.

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