Constellation Finder Helper

Summary

Filter all 88 IAU constellations by hemisphere and best viewing month, with abbreviations and short descriptions.

How it works

1. Select your hemisphere (Northern, Southern, or Both) from the dropdown.
2. Select the current month (or any month you want to observe) from the second dropdown.
3. Use the search box to find a constellation by name or abbreviation.
4. The table updates instantly to show matching constellations.
5. Click any column header to sort the results by that column.
6. Reset all filters with the Clear Filters button.

Use cases

• Plan a stargazing session by finding which constellations peak this month.
• Learn the 88 IAU constellations and their 3-letter abbreviations.
• Teach astronomy students which star patterns are appropriate for each season.
• Identify a constellation name when you know the approximate area of the sky.
• Compare northern vs. southern hemisphere skies for travel planning.
• Build a personal observing checklist of constellations to spot over a year.

Frequently Asked Questions