Noctar Premium

Spend more nights under clear skies.

Noctar Premium helps you decide if tonight is worth going out - before you pack the gear.Funktionen

Monthly

$9.99/month
  • 7-night forecast table
  • Best Window Finder
  • Custom alert rules
  • Webhooks - Discord, Slack, Home Assistant & custom
  • Custom dashboard layout with configurator
  • ISS passes and transits with GPS spot
  • Occultations, simulation & Moon planning
  • Top targets for the astronomical window, with type and brightness filters
  • Up to 5 tracked locations
  • Priority support
Save ~25%

Yearly

$89.99/year
  • 7-night forecast table
  • Best Window Finder
  • Custom alert rules
  • Webhooks - Discord, Slack, Home Assistant & custom
  • Custom dashboard layout with configurator
  • ISS passes and transits with GPS spot
  • Occultations, simulation & Moon planning
  • Top targets for the astronomical window, with type and brightness filters
  • Up to 5 tracked locations
  • Priority support
Cancel anytime. Built around real observing nights, not feature counts.

Why Premium?

Free helps you check tonight. Premium helps you act on it - across more locations, with alerts when a window opens.
Faster go / no-go callsSee a clear read on tonight based on cloud cover, seeing, transparency and the Moon - not just a forecast number.
Alerts when a window opensGet a quiet notification the moment conditions at your location actually line up for observing or imaging.
Track more than one locationAdd your home, a dark-sky site and that mountain spot, then switch between them in one tap.
Send conditions where you workForward forecast events to Discord, Slack, Home Assistant or your own webhook, with a structured JSON payload.

Webhooks - automate your workflow

Real-time data pushed to the tools you already use

Discord notification

Get a rich embed in your astronomy server the moment the best imaging window opens. Never ask "is tonight clear?" again.

Home Assistant automation

Trigger a smart scene - dim the garden lights, send a mobile alert, open the roof - automatically when seeing drops below your threshold.

Slack / team channel

Keep the whole club in sync. Post a 24-hour forecast digest to a shared channel every day at your chosen time.

Any custom endpoint

Build your own integrations. Choose exactly which fields to send, sign the payload with HMAC, and receive it wherever you need it.

Example payload

{
  "event": "best_window",
  "timestamp": "2026-04-17T21:00:00Z",
  "data": {
    "location_name": "Dark Sky Park",
    "window_start": "22:30",
    "window_end": "03:15",
    "astro_score": 84,
    "cloud_cover": 8,
    "seeing": 1.9
  }
}

Frequently asked questions

Yes. Cancel in one tap from Settings or the Stripe Customer Portal. Premium stays active until the end of the current billing period.
Payments are handled by Stripe, a PCI Level 1 certified payment processor. Noctar never sees your full card details.
Premium features unlock right away. No app restart - start using the forecast table, Best Window Finder and custom alerts immediately.
Add your webhook URL and receive a JSON event when an alert rule triggers. Works with Discord, Slack, Home Assistant and custom automations.