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AstroIndexer

AstroIndexer

New Β· 1.0 RC1 Built-in plate solver, one-click stacking & mobile apps

Understand Your Astrophotography

AstroIndexer analyzes your imaging history to reveal equipment performance, seeing patterns, and what actually improves your results.

One-time purchase from €49 · Free 14-day trial

Runs locally on your computer

AstroIndexer Gallery View

Thousands of frames. Dozens of imaging sessions. Years of data.

But which nights produced your best results? Which setup performs best? Which filters deliver the highest quality data?

Your Data Tells a Story

Real metrics from a single astrophotographer's dataset — extracted automatically from FITS headers and quality analysis.

1,909
Frames Indexed
Every frame contributes to a deeper performance profile.
62
Imaging Nights
Every session adds context to your long-term results.
1.9"
Best Seeing
Automatically tracked across your imaging history.
2.7"
Average FWHM
Measured via Moffat PSF fitting across all analyzed frames.
APO 94mm + QHY268M
Most Productive Setup
Ranked by quality-weighted imaging hours.
May, Jun, Sep
Best Imaging Months
Based on your historical quality scores.

Your insights are generated from your own sessions. No manual data entry required.

Compare Your Setups Across Years of Data

AstroIndexer analyzes thousands of frames across multiple sessions and equipment combinations, so you can compare performance across your entire dataset instead of judging one night at a time.

Equipment Performance Comparison

Compare FWHM, ellipticity, SNR, star counts, tracking RMS, and moon phase impact across every setup you own.

Equipment Performance Comparison
Baseline Metrics Comparison

See statistical baselines and variation ranges for each telescope and camera combination to understand what consistently performs best.

Equipment Baseline Metrics
Best Performing Combination

AstroIndexer automatically identifies your strongest telescope, camera, and filter combination based on quality-weighted analysis across all sessions.

Why AstroIndexer Exists

Astrophotographers accumulate thousands of frames across years of imaging. But answering simple questions is surprisingly difficult:

  • Which nights had the best seeing?
  • Which telescope and camera combination performs best?
  • Which filters produce the highest quality data?
  • How has my imaging improved over time?

AstroIndexer analyzes your entire imaging history to reveal those answers automatically.

Built by an astrophotographer who wanted insight from years of imaging data — not more folders, spreadsheets, and guesswork.

Works With Your Existing Workflow

AstroIndexer complements the tools you already use

Capture
NINA · Voyager · APT
Process
PixInsight · APP · Siril
Data Intelligence
AstroIndexer

Built for Privacy and Ownership

payments
One-time purchase — no subscription
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Runs locally on your computer
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No cloud upload — your data stays private
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No internet required — works at remote dark sites
update
Continuous development — new features released regularly
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Community feedback shapes the roadmap

From Folders to Insights in 5 Steps

1

Point AstroIndexer at your imaging folders

2

Autopilot scans and indexes all frames

3

Quality analysis scores every image

4

Imaging Intelligence discovers hidden patterns

5

Insights reveal your best setups and conditions

Who AstroIndexer Is Built For

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Astrophotographers

Managing thousands of frames across years of imaging.

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Capture Workflow Users

Running NINA, Voyager, or APT and needing real data intelligence.

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Processing-Focused Imagers

Using PixInsight or AstroPixelProcessor and wanting frame-level quality insights.

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Observatory Owners

Tracking equipment performance across home or remote setups over time.

Powerful Features for Astrophotographers

Everything you need to organize, analyze, and understand your astronomical imaging data

New

Built-In Plate Solver

AstroIndexer's own plate solver detects the star field, computes the WCS solution, and stores native SIP distortion coefficients per frame β€” no external ASTAP or astrometry.net to install. 18.6% faster median solve time than ASTAP.

New

One-Click Stacking

QA scores sort every sub into Excellent, Good, Acceptable and Reject buckets, then AstroIndexer hands the keepers to a stacker: one-click PixInsight AutoIntegrate or automatic Siril stacking, with ready-made OSC, broadband and narrowband sequences.

New

Object Detector

Annotates every catalogued object in a solved frame β€” galaxies, clusters and more β€” cross-matched against LEDA, SDSS, MCG and 2MASX, with a keep / reject findings table.

New

Inspect Loupe

Pixel-peep any sub at 1:1 with a magnifier loupe. Live FWHM, HFR, eccentricity, SNR and PixInsight-parity PSF metrics, plus a per-pixel RGB readout and histogram β€” without leaving the gallery.

New

Backfocus Manager

Build your imaging train from a vendor inventory, see it drawn to scale, and get the exact spacer combination to hit each sensor's required backfocus β€” with an under / within / over tolerance band.

New

Mobile Companion Apps

Browse your catalogue, check per-object capture stats, and see Scan, QA and ML status from the field or the couch. iOS is live on the App Store; Android is in final review.

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Smart Organization

7-stage scanning pipeline extracts 93+ fields from FITS and XISF headers. Supports SeeStar smart telescopes, NINA CSV integration, and stacked-image detection.

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Gallery & File Browser

Browse 100,000+ frames with virtual scrolling, 6-level drill-down, smart filters by quality, equipment, and moon phase.

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Equipment Manager

Auto-discovery from FITS headers with automatic filter recognition, gain/offset detection, QE sensor curves, calibration library, and Bortle sky brightness settings.

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Statistics & Reporting

Session statistics, exposure totals by target and filter, equipment performance baselines, and quality distribution analysis.

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Session Planner V2

Equipment-aware target recommendations based on your optics, location, season, and sky conditions. 5-state project pipeline with Smart Plan scoring and moon analysis.

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Catalogue Completion

Track progress across 26+ astronomical catalogues including Messier, NGC, IC, Caldwell, and Sharpless with color-coded visual grids.

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Autopilot Pipeline

One-click automated workflow: scan folders, detect equipment, create calibration sets, run quality analysis, and Imaging Intelligence in a single pipeline.

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PixInsight & AstroBin

AstroBin gallery sync with published badges and acquisition push. PixInsight AutoIntegrate export with combination mode selection.

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Sky Atlas & Celestial Map

Interactive sky atlas with FOV overlays and mosaic positioning, plus a celestial map showing your imaging coverage across the sky.

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Quality Analysis

Automatically score your captures and find the best frames for clean, detail-rich stacks. AstroIndexer detects sharpness, signal, star shape, background problems, and common capture errors.

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Imaging Intelligence

Spot the patterns in your astrophotography: which nights, filters, setups, and conditions truly deliver the best results - and where hidden problems are holding your image quality back.

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Local AI Insights

Get clear, easy-to-follow recommendations for frame selection, stacking, and equipment optimization - running locally on your computer by default, with optional support from OpenAI or Claude.

See AstroIndexer in Action

Powerful tools designed for serious astrophotographers

New in 1.0 Release Candidate 1

A Plate Solver, Built In

No more shelling out to an external tool. AstroIndexer's own plate solver detects the star field, computes the WCS solution, and stores native SIP distortion coefficients right alongside your frame. In the latest raw-light benchmark it posted an 18.6% lower median solve time than ASTAP.

  • Native WCS with a full SIP distortion model, captured per frame
  • No external astrometry.net or ASTAP install to configure or maintain
  • 18.6% lower median solve time than ASTAP in the latest raw-light benchmark
  • Solutions stored with your library, ready for framing and mosaics
AstroIndexer's native plate solver showing a WCS solution with SIP distortion coefficients and distortion vectors overlaid on a solved frame

Pixel-Peep Any Frame with the Inspect Loupe

A magnifier loupe for your subs. Move over the frame to inspect stars at 1:1, read live quality, PSF and PixInsight-parity metrics, and check the histogram β€” all without leaving the gallery.

  • Live FWHM, HFR, eccentricity and SNR as you move across the frame
  • PixInsight-parity metrics (PSFSNR / PSFSW) side by side
  • Per-pixel RGB readout and an RGB histogram with log and percentile toggles
  • Fit, 1:1 and WCS inspect modes for fast triage
The Inspect Loupe magnifying stars at 1:1 with live quality and PSF metrics and an RGB histogram alongside

One-Click Stacking, for Siril and PixInsight

AstroIndexer reads your QA scores, sorts every sub into Excellent, Good, Acceptable and Reject buckets, and balances your filters for you. Then it hands the keepers straight to a stacker β€” no manual set-up, no juggling scripts.

  • QA-driven frame selection into Excellent / Good / Acceptable / Reject buckets, filter-balanced
  • Automatic PixInsight stacking via AutoIntegrate, with RC Astro tool detection (BlurX / StarX / NoiseX)
  • Automatic Siril stacking via AstroIndexer's own workflow scripts
  • Ready-made sequences for OSC, broadband (LRGB / RGB) and narrowband (SHO / HOO)
  • Presets for every goal: Default Stack, Deep Stack, Sharp Focus
AstroIndexer stacking workflow with QA frame buckets, filter balance and a Siril processing sequence

See Every Object in the Frame

Point the Object Detector at any solved frame and it annotates every catalogued object it finds β€” galaxies, clusters and more β€” cross-matched against LEDA, SDSS, MCG and 2MASX, with a keep / reject findings table and per-object thumbnails.

  • Catalog-assisted detection against LEDA, SDSS, MCG, 2MASX, NVSS and more
  • Every finding annotated on the frame and listed with class, catalogue and position
  • Uses your WCS solution for accurate identification
  • Keep or reject detections, then export the findings
AstroIndexer Object Detector annotating catalogued galaxies on a frame of NGC 660, with a findings table listing class, catalogue and position

Export Share-Ready Images with Overlays

Turn your processed results into images that are ready to post. Image Overlay Export lays acquisition details, object info, a minimap and your own branding straight onto each frame, then batch-exports your whole library at the size you choose.

  • Acquisition, object, minimap and branding overlays
  • Batch export across your whole library at a chosen width
  • Signature preset for a consistent, branded look
  • Sorted by best score, ready to share
AstroIndexer Image Overlay Export showing a grid of processed objects with acquisition and branding overlays, ready to share

Dial In Your Imaging Train Before You Go Out

The Backfocus Manager grew up. Build your train from a vendor inventory, see it drawn to scale, and get the exact spacer combination to hit each sensor's required backfocus β€” with an under / within / over band so you know instantly when you are in tolerance.

  • To-scale image-train diagram from optic to sensor plane
  • Filter-glass compensation folded into the spacing math
  • Spacer solver that names the combination to reach target backfocus
  • Export a checklist to take to the scope
The Backfocus Manager showing a to-scale image train from optic to sensor with an under / within / over tolerance band

Your Library, In Your Pocket

AstroIndexer now has companion apps for iOS and Android. Browse your catalogue, check per-object capture stats, and see Scan, QA and ML status on any target β€” from the field or from the couch.

  • Per-object capture summary: total exposure, frames, rig and date range
  • Scan / Rig / QA / ML / Image pipeline status at a glance
  • Object previews synced from your indexed library
A hand holding a phone running the AstroIndexer companion app at night, showing the M 96 object page, with a telescope rig under a starry sky in the background

Gallery View

Browse your entire astrophotography collection with lightning-fast virtual scrolling. View thumbnails of 100,000+ images without lag.

  • Virtual scrolling for unlimited images
  • Quick preview with FITS header data
  • Batch operations and tagging
Gallery View Screenshot

Index & Overview

Your command center for all imaging data. Get instant insights into your collection with smart categorization.

  • Complete collection statistics
  • Equipment performance metrics
  • Quick access to recent sessions
Index Overview Screenshot

One-Click Autopilot Setup

Point AstroIndexer at your imaging folder and let Autopilot handle everything: scanning, equipment detection, tagging, calibration set creation, gain/offset setup, quality analysis, and Imaging Intelligence -- all in one automated pipeline.

  • Scans and indexes all FITS/XISF files automatically
  • Auto-detects equipment, creates calibration sets, populates gain/offset
  • Optional Quality Analysis (FWHM, HFR, star detection) in the same run
  • Optional Imaging Intelligence (pattern discovery, stacking recommendations)
  • Optional PixInsight Auto-Stack via AutoIntegrate
Autopilot full pipeline complete β€” scanning, QA, ML patterns, and PixInsight AutoIntegrate stacking

Advanced Quality Analysis

Comprehensive image quality metrics with FWHM, HFR, eccentricity, and star count analysis. Automatically grade and sort your images to identify the best frames for stacking.

  • Real-time FWHM and HFR calculations
  • Automatic quality scoring
  • Batch analysis capabilities
Quality Analysis Screenshot

Equipment Manager

Auto-discovers telescopes, cameras, and filters from your FITS headers. Automatic filter recognition, gain/offset detection, QE sensor curves, calibration library with target linking, and observing site configuration.

  • Automatic filter recognition and gain/offset detection from FITS headers
  • QE curves for IMX183, IMX294, IMX455, IMX585, and 5 more sensors with auto-import
  • Calibration library: auto-created sets with temperature/gain matching, linked to imaging targets
  • Location settings with Bortle class (1-9), SQM calculation, and AstroBin equipment sync
  • SeeStar S50, S30, and S30 Pro smart telescope support
Equipment Statistics Screenshot

Session Planner V2

Recommends suitable targets based on your equipment capabilities, observing location, time of year, and sky conditions. 5-state project pipeline with Smart Plan scoring.

  • Equipment-aware suitability scoring: matches targets to your focal length, sensor, and FOV
  • Location and season-aware: altitude, visibility windows, and best-month calculations
  • Moon impact analysis with filter-specific safe-zone thresholds
  • QE-aware exposure recommendations per filter
  • NINA XML export and Telescopius CSV export
Session Planner Screenshot

Sky Atlas

Interactive sky atlas with field-of-view overlays showing exactly what your equipment captures. Plan mosaic panels, check framing, and discover new targets.

  • FOV overlay matching your exact equipment
  • Mosaic panel positioning and planning
  • Plate solving integration
  • Target search with catalogue cross-reference
Sky Atlas Screenshot

Interactive Celestial Map

Visualize your entire imaging collection on an interactive sky map. See coverage gaps, plan future sessions, and explore your astrophotography journey.

  • Interactive 3D sky visualization
  • Coverage heatmap overlay
  • Object tracking and planning
  • Real-time position updates
Celestial Map Screenshot

AstroBin Integration

Sync your AstroBin gallery with automatic catalogue-ID matching. See which targets you have published, push acquisition data, and display published badges in your local gallery.

  • One-click gallery sync with auto-matching
  • Published badges on gallery thumbnails
  • Push sub-frame counts and filter data to AstroBin
  • Offline browsing with cached data
  • Equipment Presets β€” sync telescope, camera, mount, filter, and accessory setups from your AstroBin profile
AstroBin Integration Screenshot

Stacking Advisor

PixInsight-aligned frame selection with Winsorized Sigma Clipping at threshold 2.2. AutoIntegrate Combination Recommender selects the optimal palette from 11 options based on your filters and object type.

  • Intelligent palette selection: SHO, HOO, LRGB, Dynamic SHO, and more
  • Frame quality tiers: Excellent, Good, Poor with per-filter balance
  • StarXTerminator + RGB broadband star recombination workflow
  • One-click export to PixInsight AutoIntegrate JSON
Stacking Advisor Screenshot

Catalogue Completion Tracking

Track your progress through Messier, NGC, IC, and other astronomical catalogs with interactive visual grids.

  • Visual grid for all catalog objects
  • Progress tracking by catalog
  • Missing object identification
Catalogue Completion Screenshot

AI-Powered Analytics

40 Patterns Across 9 Categories -- Discover What Your Data Reveals

Imaging Intelligence Dashboard

40 patterns across seasonal, moon, equipment, focus, thermal, atmospheric, optical, and optimization categories. Every pattern includes confidence scores and actionable recommendations.

  • Real-time quality predictions
  • Performance trend analysis
  • Equipment recommendations
Imaging Intelligence Dashboard

Sensor Performance Heatmap

Visualize sensor performance across your entire frame to identify vignetting, dust motes, and optical aberrations.

  • Pixel-level quality mapping
  • Dust and defect detection
  • Vignetting analysis
Sensor Performance Heatmap

Environmental & Optical Patterns

Discovers seeing bimodality, cloud cover impact, sky gradient trends, field curvature signatures, sensor tilt, and optical degradation over time.

  • Bimodal seeing detection and thresholds
  • Moon impact analysis: broadband vs narrowband
  • Optical quality trending across sessions
Environmental and Optical Patterns

AI-Generated Insights

Human-readable summaries of your most impactful patterns, generated by GPT-4o or Claude. Actionable recommendations specific to your equipment and imaging style.

  • Personalized improvement recommendations
  • Equipment-specific optimization tips
  • Filter and target strategy guidance
AI-Generated Insights

Download AstroIndexer

Free to try, works on all major platforms

Free 14-day trial included with download. No account required.

Choose Your Plan

Flexible pricing for hobbyists and professionals

Free Trial

Free 14 days
  • Full feature access
  • Up to 1000 images
  • Basic support
  • All analysis tools
Request Free Trial

Standard

€49 one-time
  • Unlimited images
  • All core features
  • Equipment database
  • Session statistics & planning
  • Multi-computer license
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