Nightbase — Astronomy Observation Logger & Interactive Star Map

Every night has a mission.

Showing the sky from Greenwich, London. Log in to use your own location and save objects to plans and lists.

Explore the night sky in real-time. Navigate constellations, find deep-sky objects, and plan your observations.

Launch Star Map

Navigate the night sky

Browse Catalog

22,000+ deep sky objects

Discover

Tonight

Best objects to observe tonight

Sky Digest

Curated nightly briefing with top targets and events

Weather

Astronomy weather forecast

Record

Sessions

Log your observing nights

Observations

Detailed records per object

Quick Add

Log a single observation without a session

Organize

Lists

Curate your favorite objects

Plans

Observation checklists with progress

Equipment

Manage your gear

Solar System

Planetarium

3D solar system model

Sun

Live image & rise/set times

Moon

Phase, map and special highlights

Planets

Jupiter, Saturn & Mars

Earth

3D globe with real-time day/night and ISS tracking

Events

Eclipses, conjunctions & meteor showers

Comets

Currently visible comets

ISS

ISS, Starlink & bright passes

Meteor Showers

Peak dates, hourly rates & radiant positions

Reference

Constellations

88 IAU constellations & their objects

Exams

Test your astronomy knowledge

Famous Astronomers

History of astronomy

Kepler's Laws

Interactive orbital mechanics simulation

Three-Body Problem

Gravitational simulation of three bodies

Optics Simulator

Eyepiece & telescope calculator

Collimation

Telescope alignment helper

Space Telescopes

Recent JWST and Hubble observations

Polar Lights

Aurora forecast, Kp index, and live feeds

Light Pollution

Interactive global light pollution map with Bortle scale overlay from VIIRS satellite data

Resources

Curated links to prestigious astronomy websites, databases, and organizations

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