Celestial Illumination

Overview

Precision solar and moon illumination forecasts designed for tactical mission planning, aviation, nautical navigation and field operations. Get instant, reliable twilight and lunar data anywhere on Earth—even in fully disconnected, offline environments.

Engineered to support the rigorous demands of Battle Staff, Aviators, Nautical Navigators and Tactical Ground Elements.

Key Features & Capabilities

• Comprehensive Twilight & Solar Tracking

Accurately forecast solar elevation stages:

• Astronomical Twilight: BMAT, EMAT, BEAT, EEAT

• Nautical Twilight: BMNT, EMNT, BENT, EENT

• Civil Twilight: BMCT, EMCT, BECT, EECT

• Key Solar Events: Sunrise, Sunset and Solar Midday

• Complete Lunar Data

Plan night operations around natural light levels:

• Moonrise and Moonset times

• Percent Lunar Illumination calculations

• 100% Offline & Disconnected Operation

All complex orbital and celestial data is calculated directly on-device—no active internet or cellular connection required. Ideal for remote field locations, airborne missions and maritime environments.

• Tactical Location & Coordinate Support

• Multiple Input Options: Auto-detect via GPS, interactive map picker or manual coordinate entry.

• Coordinate Formats: Decimal Degrees (e.g., 61.575590) or Degrees / Minutes / Seconds.

• Save & Load location profiles for fast access to your operational hotspots.

• Flexible Time Display

Instantly toggle timestamps between Local Time and UTC / ZULU Time to seamlessly match mission control standards.

• Single-Day & Date-Range Forecasting

Query specific dates or generate multi-day illumination forecasts for extended mission planning cycles.

Who Is This App For?

• Military & Defense Operations: Battle staff, Special Operations (SOF), TACP/CCT and tactical units planning low-light engagements.

• Aviation & Helicopter Pilots: U.S. Air Force, Army and Navy aviators requiring precise twilight and ambient light data for night flights and NVG (Night Vision Goggles) operations.

• Nautical Navigators & Maritime Personnel: U.S. Navy, Coast Guard and commercial mariners utilizing nautical twilight markers for open-sea navigation.

• Outdoor Professionals & Astronomers: Field analysts, outdoor adventurers and photographers who require accurate solar, lunar and twilight data anywhere in the world.

Optimized for Mission Performance

• Instant Processing: Sub-1-second response times for fast, field-ready data access.

• Privacy Focused: Zero personal data tracking (No PII collection).

• Global Precision: Reliable global calculations tailored to any set of coordinates.