Check a calendar date against Astronomy Engine global solar and lunar eclipse events, with the local-visibility safety boundary kept visible.
Inputs, result, proof and time.
Use the instrument above, then check the calculation record, assumptions and related tools below.
Working Calendar
Eclipse Calendar calculator
This calendar route reuses the live calculator from Eclipse Calculator, then keeps the formula, assumptions and source boundary visible on the calendar URL.
Sun/Moon/Astronomy
Eclipse Calculator
Live answereclipse date · 91/1002026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Live resulteclipse date · 91/1002026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Formula used
SearchGlobalSolarEclipse(date − 370 days) and SearchLunarEclipse(date − 370 days), iterate forward one year, choose the nearest real eclipse peak, then score max(0, 100 − 12 × days from peak).
This is the method behind the answer, so the result can be checked rather than simply trusted.
Live math canvas
Your numbers, formula and explanation together
Eclipse Calculator: eclipse date · 91/100. 2026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Formula applied
The exact method behind this answer
CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.
SearchGlobalSolarEclipse(date − 370 days) and SearchLunarEclipse(date − 370 days), iterate forward one year, choose the nearest real eclipse peak, then score max(0, 100 − 12 × days from peak).
Apply the formulaSearchGlobalSolarEclipse(date − 370 days) and SearchLunarEclipse(date − 370 days), iterate forward one year, choose the nearest real eclipse peak, then score max(0, 100 − 12 × days from peak).eclipse date · 91/1002026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Your live breakdown
Current inputs in the calculation
These values come from the controls above and update when the calculator changes.
Year
2,026
Month
8
Day
12
Resulting answer
eclipse date · 91/100
2026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Answer
eclipse date · 91/100
Live support
2026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Assumptions used
What this answer assumes
Engine-backed global eclipse proximity only. Do not use it as an official local eclipse calendar.
Uses Astronomy Engine global solar and lunar eclipse searches.
Scores distance from the nearest global eclipse peak to the selected UTC date.
Does not calculate local visibility path, local magnitude, Saros series or local circumstances.
Use NASA or official astronomical ephemerides for real eclipse dates and viewing.
Master’s Tip
How to use the result well
Master’s Tip: an eclipse needs both timing and geometry: new/full phase is not enough unless the Moon is also near its orbital node.
Printable record
What belongs in the saved calculation
Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.
Year
2,026
Month
8
Day
12
Visual grid
This number is one point on a larger pattern
Eclipse is not just a final answer. It is a step on a line: before and after, input and output, assumption and result.
Micro-timehours, minutes, shiftsHuman scaledays, weeks, projectsMacro-timemonths, years, calendars
InputFormulaResult
eclipse date · 91/100
CalculationTime keeps the path visible: the input, the method and the final number belong together.
CalculationTime
Eclipse Calculation Report
Report date:
eclipse date · 91/1002026-08-12: moon phase New Moon, 28.71 days old. Nearest Astronomy Engine event: global solar total eclipse peak 2026-08-12, 0.74 day(s) from the selected UTC date. This is a global eclipse-date screen; local visibility, path, magnitude and safety guidance still need official eclipse sources.
Inputs
Year
2,026
Month
8
Day
12
Method
SearchGlobalSolarEclipse(date − 370 days) and SearchLunarEclipse(date − 370 days), iterate forward one year, choose the nearest real eclipse peak, then score max(0, 100 − 12 × days from peak).
A date on or very near a real engine eclipse peak receives a high score. A date many days away from the nearest engine eclipse receives an ordinary lunar-month result.
Assumptions
Uses Astronomy Engine global solar and lunar eclipse searches.
Scores distance from the nearest global eclipse peak to the selected UTC date.
Does not calculate local visibility path, local magnitude, Saros series or local circumstances.
Use NASA or official astronomical ephemerides for real eclipse dates and viewing.
Notes
Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.
Method
The calendar scores distance from the nearest real global eclipse peak
The route searches Astronomy Engine global solar and lunar eclipse events around the selected UTC date, selects the nearest event peak, and turns the day distance into a visible proximity score.
Formula
SearchGlobalSolarEclipse(date − 370 days) and SearchLunarEclipse(date − 370 days), iterate forward one year, choose the nearest real eclipse peak, then score max(0, 100 − 12 × days from peak).
Assumptions
Uses Astronomy Engine global solar and lunar eclipse searches. Scores distance from the nearest global eclipse peak to the selected UTC date. Does not calculate local visibility path, local magnitude, Saros series or local circumstances. Use NASA or official astronomical ephemerides for real eclipse dates and viewing.
Trust boundary
This is a global event-proximity calendar only. It does not calculate local visibility, eclipse path, magnitude, eye-safety conditions, Saros series or official local circumstances.
Source Notes
Eclipse Calendar keeps the source limits visible
Engine-backed global eclipse proximity only. Do not use it as an official local eclipse calendar.