MyAstroBoard

Current Conditions

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Loading astrophotography weather analysis...

Tonight's Score

Hourly astrophotography score from sunset to sunrise.

Horizon

Below the -18° astronomical twilight line, the sky is fully dark - the best window for faint deep-sky imaging.

Best Observation Periods

Consecutive hours during astronomical night where the combined quality score exceeds 70%.

Weather Alerts

Advanced Weather Analysis

Hour-by-hour breakdown of the astrophotography forecast. Each chart below states whether higher values are good or bad for imaging.

Best Observation Window

Best next window is calculated within three differents modes, return is in hours:
- Strict Sun altitude < -18° AND Moon altitude < 0° => No moon on sky
- Practical Sun < -18° AND Moon altitude < 5° => Moon, but negligible
- Illumination Sun < -18° AND Moon illumination < 15% => Visible moon, but faint

Moon

A brighter, higher Moon scatters more light across the sky - lower illumination and altitude generally mean darker skies and better conditions for faint deep-sky targets.

Moon next days

Lunar Eclipse

Sun

Astronomical night starts once the Sun drops below -18° altitude (the darkest twilight stage) and ends when it climbs back above it - that window is when the sky is dark enough for deep-sky imaging.

Solar Eclipse

Aurora Borealis Predictions

Events Calendar

Weather Forecast

Loading weather data...

Fetching forecast and astronomical information

Observation Conditions - Coming Night

A fast go / no-go scan of the coming night, hour by hour.

The top chart is the night score - the same 0-10 value (shown here x10) as the navbar badge and the "Score de la Nuit" cards. The two charts below break down why: cloud cover, fog and rain in "Sky", and seeing, transparency and mount stability in "Atmosphere & tracking". Daytime hours are shaded grey.

On "Sky", higher is better for cloudless sky; fog and precipitation are drawn as bars where higher means more hazard.

The Lifted Index on "Atmosphere & tracking" is a stability value in °C on its own axis, not a percentage: negative means unstable air with more turbulence and cloud risk, positive means calmer, more stable air. Click a legend badge to hide or isolate a series.

Loading astronomical data...

Seeing Forecast

Launch Timeline

Astronauts & Human Spaceflight

Space Events

Orbital Stations

Loading observatory data...

Astrodex - Gotta Catch 'Em All!

Your personal collection of captured celestial objects

My Collection

Plan My Night

Build a private timeline for tonight directly from SkyTonight targets.

Observation Log

Log what you actually captured on each night - Plan, Observe, Log, Astrodex.

Plan My Night

What do I want to shoot tonight?

Observation Log

What did I actually do?

Astrodex

Everything I've ever captured

The Observation Log is the middle step of a simple loop: plan what you want to shoot, log what actually happened each night, and everything you capture ends up in your Astrodex gallery automatically.

A session is one trip out: a location, an equipment setup, and one or more nights, each with its own conditions (SQM, seeing, transparency, Moon).
As soon as a target has real capture data (frames, integration time), it's added to your Astrodex automatically - no button to remember.
The finished, processed photo is attached separately, once you've stacked it - that step always stays manual.
You can import a session straight from a Plan My Night plan instead of re-entering everything by hand.
Sessions are always private - they're never shared with other users, unlike Astrodex.

Your observing record

What your logbook says about the nights you have spent under the sky.

Where your nights go

Your sky so far

Every object you have captured, put back where it belongs on the sky.

When the sky is open

How much observable darkness your site offers each month, next to the hours you actually logged. This is astronomy and your own history - it says nothing about the weather.

How the sky treated you

How you rated your own results under the conditions you recorded. Descriptive only - it reports what your log contains, it does not predict anything.

Wishlist

Objects you want to capture. Add them from SkyTonight, the catalogue collection or the beginner catalog; they are marked captured automatically once they show up in your log or your Astrodex.

Photo Map

See where your Astrodex photos were taken.

Catalogue Collection

Browse a whole catalogue and see at a glance which objects you have already captured.

Catalogue

Equipment Combinations

Combine telescope, camera, mount, accessories, and filters to analyze setup compatibility and FOV. This setup will be also selectable on Astrodex.

Field of View Calculator

Exposure Calculator

Telescopes

Manage your telescope profiles with automatic calculation of focal ratios and effective focal lengths.

Cameras

Manage your camera profiles with automatic calculation of sensor diagonal and image scale.

Mounts

Manage your mount profiles with automatic calculation of recommended imaging payload.

Filters

Manage your filter profiles for LRGB, narrowband, broadband, and other imaging filters.

Accessories

Manage your accessory profiles for focusers, field flatteners, filter wheels, and other equipment.

My Locations

These are the observing locations attributed to you. Pick which one is shown by default when you connect, and reorder them for the quick switcher. Location presets themselves are managed by an administrator.

Default location (shown when you connect)

Location order

Order used in the quick switcher of the sky widget.

Customize

Personalize your dashboard defaults and display preferences. These settings apply only to your account.

Startup main tab

Startup sub-tab

Time format

Display density

Theme

First day of week

Experience level

Controls which SkyTonight targets are highlighted as recommended for you. Beginner shows only easy targets; Advanced shows everything.

Show Beginner Catalog tab

Adds a "Beginner" tab to SkyTonight with a curated list of easy targets.

Show "Tonight for you" panel

Shows a "Tonight for you" panel of recommended targets at the top of the SkyTonight Deep Sky Objects tab.

Run the guided setup wizard again from the beginning.

Active subscriptions

Each device that enables notifications registers a separate subscription. Removing all clears stale entries - your current device will automatically re-register on the next page load.

Security

Change your account password. Your current password is required for confirmation.

Two-factor authentication

Your data

Download a ZIP archive of everything this instance stores about you: account, preferences, Astrodex and pictures, observation log, equipment, plans and wishlist.

Locations

Create observing location presets and attribute them to users. Each location drives all calculations (weather, astro forecasts, SkyTonight, ISS/CSS) for the users observing from it.

Astrodex

The Astrodex is shared by default between all users. Thats mean every body can fill the Astrodex, but only the owner of the picture can edit or delete it.
If needed, you can set up a private Astrodex for each user.

Private Astrodex

Enable this option to set up a private Astrodex for each user

Photo map private

When off (default), the Photo Map shows exact GPS locations of every shared user's photos to everyone. Turn this on if you don't want your precise photo locations visible to other users, even when Astrodex sharing is on.

Constraints

All parameters of this page are used by SkyTonight internals.

Min Altitude (°):

Degrees above horizon

Max Altitude (°):

Degrees above horizon

Airmass Constraint:

2 = 1/cos(60°)

Min Size (arcmin):

Minimum object size in arc minutes

Max Size (arcmin):

Maximum object size in arc minutes

Min Moon Separation (°):

Minimum separation from moon in degrees (overridden if 'Use Moon Illumination' is checked)

Observable Time Threshold:

Fraction of darkness time object must be observable (0.0-1.0, e.g., 0.5 = 50%)

Use Moon Illumination

If enabled, minimum moon separation is derived from moon illumination percentage (1% = 1°)

North to East CCW

Set azimuth display: counter-clockwise (north at top, east at left) or clockwise

Altitude constraints

Targets must reach an altitude between min and max during the observable night. The green band is the valid zone.

Airmass

Airmass measures the thickness of atmosphere a light ray crosses. Lower altitude = more atmosphere = worse quality. This constraint overrides min altitude if stricter.

Angular size (arcmin)

Filters deep-sky objects by apparent size. Use to remove objects too small to resolve or too large for your sensor's field of view.

Moon separation

Targets within the exclusion zone around the moon are filtered out. With dynamic mode enabled, the minimum gap automatically scales with moon brightness.

Observable time threshold

A target must be above all constraints for at least this fraction of the night. Lower values include objects visible only briefly near dusk or dawn.

When new SkyTonight settings are saved, a manual run may be required to see changes on dashboard, or wait for the next scheduled run.

Notifications

Configure the contact email used for VAPID push notification delivery. This email is sent to push services and is not shown to users.

VAPID contact email

Privacy & search engines

By default this instance is private: search engines are asked not to crawl or index it, including the login page. Enable this only if you want your login page discoverable on Google and other search engines.

Allow search engines to index the login page

Reverse proxy

Enable these settings only if MyAstroBoard runs behind a reverse proxy (NGINX, Traefik, etc.) with HTTPS. A container restart is required to apply changes.

Trust proxy headers (X-Forwarded-*)

HTTPS-only session cookie (Secure flag)

External base URL

Address other software uses to reach MyAstroBoard: the Astrodex stream (Home Assistant camera, Lovelace card) and the MyAstroShine photo return. Leave empty to use the address in your browser. Required when you use MyAstroBoard from the Home Assistant sidebar.

MQTT connections

The MQTT brokers MyAstroBoard talks to. Define a broker once here, then pick it in each MQTT connector (Parameters - Connectors).

Actions

When new SkyTonight settings are saved, a manual run may be required to see changes on dashboard, or wait for the next scheduled run.

System Logs

Logging

The log level controls how much detail is recorded. To troubleshoot an issue, set the log file level to DEBUG, reproduce the issue, then export the logs below. Changes apply right away, without a restart.

Log file level

Written to myastroboard.log, shown in the Logs tab and included in the export.

Console level

The container output: docker logs, or the Log tab of the Home Assistant app.

Keep application log lines for (days)

Logs contain usernames and IP addresses. Older lines are deleted once a day. 0 keeps them until the size limit rotates them out.

Export Logs

Download a ZIP archive of all log files. Share this archive when reporting an issue to help with diagnostics.

Included in the archive:

data/myastroboard.log (+ rotated files if any)
data/skytonight/logs/
data/skytonight/runtime/scheduler_status.json

User Management

Manage users and their access roles.

Existing Users

Trusted networks and two-factor authentication

A trusted network is where you consider sign-ins safe, typically your home LAN. Accounts limited to trusted networks can only sign in from here, and two-factor authentication is skipped from here.

127.0.0.1 and ::1 are always trusted and never need to be added.

Enable two-factor authentication for this instance

System Metrics

System performance and resource monitoring. Data refreshes automatically every 5 seconds.

CPU Usage

RAM Usage

- / -

Swap Usage

- / -

Root Filesystem

- / - (- free)

Disk Storage

Folder Usage

data/

- / -

0% of root

data/astrodex/

0% of root

data/cache/

data/equipments/

data/projects/

SkyTonight

data/skytonight/

- / -

0% of root

./calculations/

./catalogues/

./logs/

./outputs/

./runtime/

Database

Status

Schema version -
Size -
Journal mode -

Integrity

Checks that the database file is sound and that every record points to existing data.

SkyTonight Scheduler

Status

Enabled -
Running -
Executing -
Mode -
Timezone -

Timing

Last run -
Next run -
Reason -
Last duration -
Last error -

Last Result

Night start -
Night end -
Deep sky objects -
Bodies -
Comets -

Cache Jobs

Each cache job has its own TTL. The scheduler checks every 25 min but only runs jobs whose TTL has expired.

Job	TTL	Status	Last run	Duration
Loading cache metrics...

System Information

Platform

OS: -
Release: -
Machine: -
Python: -

System Status

Uptime: -
Processes: -
Network Sent: -
Network Received: -

CPU Info

Logical Cores: -
Physical Cores: -
Frequency: -

Container

Container/VM: -
Container Type: Not running in container

Process Information

Show all processes

Process	Status	CPU	Memory	Uptime
No process data available

Backup

Download a ZIP archive of your personal data. The archive includes configuration, user accounts, Astrodex entries and equipment profiles.

Included in the archive:

config.json, app_settings.json
users.json
astrodex/
equipments/
observation_sessions/
wishlist/

Restore

Restoring a backup will overwrite the current configuration, users, Astrodex and equipment data with the contents of the archive. This action cannot be undone.

Select backup archive (.zip):

External Connectors

External connectors add features to MyAstroBoard. Each connector has individual modules that can be enabled or disabled.

About MyAstroBoard

MyAstroBoard is a self-hosted astronomy dashboard for observation and astrophotography planning.

Project at a glance

Public showcase and presentation page

myastroboard.org

Source repository

github.com/myastroboard/myastroboard

Report an issue

GitHub Issues

Maintainer

WorldOfGZ

GitHub: @WorldOfGZ

Support the project

If MyAstroBoard helps you, you can support its maintenance and development.

GitHub Sponsors Ko-fi

Funding file: .github/FUNDING.yml
See all active support links in FUNDING.yml.

Credits & Acknowledgements

MyAstroBoard is built on the shoulders of these open-source projects and free data services.

Frontend

Bootstrap 5 - CSS framework
Bootstrap Icons - icon font
Leaflet - interactive maps
MapLibre GL JS - vector map rendering
VersaTiles - map styles
Chart.js - charts
Plotly.js - interactive plots

Python libraries

Flask - web framework
Astropy - astronomy core
Astroplan - observation planning
astronomy-engine - planetary positions
Skyfield - satellite tracking
SGP4 - orbit propagation
PyOngc - NGC/IC catalog
NumPy / Matplotlib / Pandas
pywebpush - push notifications

Data sources & APIs

OpenStreetMap - map data and tiles
Open-Meteo - weather forecast
The Space Devs LL2 - spaceflight data
CelesTrak - ISS TLE (primary)
Ivan Stanojevic TLE - ISS TLE (fallback)
wheretheiss.at - ISS TLE (fallback)
7Timer! - atmospheric seeing
SIMBAD / CDS - object resolution & sky images
Minor Planet Center - comet ephemerides
IERS - Earth orientation data
Wikipedia REST API - object descriptions
NOAA SWPC - aurora & geomagnetic forecast
JPL Small-Body Database - comet lookup data
MyMemory Translation API - on-demand translation
uptonight - original source of bundled catalogue data

Object catalogues

OpenNGC - NGC, IC, Messier
Sharpless (Sh2) - HII regions
Barnard (B) - dark nebulae
van den Bergh (vdB) - reflection nebulae
Abell - galaxy clusters & planetary nebulae
Lynds (LBN) - bright nebulae
Arp - peculiar galaxies
Herschel 400 - Astronomical League program
Pensack 500 - 500 best DSO for imaging
Gary Imm - astrophotography compendium (~200 objects)

License

MyAstroBoard is licensed under AGPL-3.0. Source code remains available for deployed versions.

AGPL-3.0

Current Conditions

Loading...

Tonight's Score

Horizon

Best Observation Periods

Weather Alerts

Advanced Weather Analysis

Best Observation Window

Moon

Moon next days

Lunar Eclipse

Sun

Solar Eclipse

Aurora Borealis Predictions

Events Calendar

Weather Forecast

Loading weather data...

Observation Conditions - Coming Night

Seeing Forecast

Launch Timeline

Astronauts & Human Spaceflight

Space Events

Orbital Stations

Astrodex - Gotta Catch 'Em All!

My Collection

Plan My Night

Observation Log

Your observing record

Where your nights go

Your sky so far

When the sky is open

How the sky treated you

Wishlist

Photo Map

Catalogue Collection

Equipment Combinations

Field of View Calculator

Exposure Calculator

Telescopes

Cameras

Mounts

Filters

Accessories

My Locations

Location order

Customize

Notifications

Locations

Active subscriptions

Security

Two-factor authentication

Your data

Locations

Astrodex

Constraints

Notifications

Privacy & search engines

Reverse proxy

MQTT connections

Actions

System Logs

Logging

Export Logs

User Management

Existing Users

Trusted networks and two-factor authentication

System Metrics

Disk Storage

Database

SkyTonight Scheduler

Cache Jobs

System Information

Process Information

Backup

Restore

1.7 upgrade archive

External Connectors

About MyAstroBoard

Project at a glance