---
title: "Target Visibility & Charts"
description: "The Target Charts answer the planning question that matters most: *when is this target actually worth imaging from my site, with my filters?* ### Reading the Chart For each night across the season the chart shows the target’s altitude arc,…"
url: "https://astro-pm.com/docs/target-visibility-charts/"
updated: "2026-07-12"
category: Astro PM App Guide / Projects
---

# Target Visibility & Charts

The Target Charts answer the planning question that matters most: *when is this target actually worth imaging from my site, with my filters?*

### Reading the Chart

For each night across the season the chart shows the target’s altitude arc, the dark hours, and – most importantly – the **recommended exposure band**: the green region marking time the scheduler would genuinely use for this target.

[![](https://astro-pm.com/wp-content/uploads/2026/07/Screenshot-2026-07-12-130504.png)](https://astro-pm.com/wp-content/uploads/2026/07/Screenshot-2026-07-12-130504.png)

### Why the Green Band Is Trustworthy

The band is not a simple altitude cutoff – it is produced by running the **actual scheduling engine** night by night, with your constraints, horizon, and per-filter moon rules applied. If your narrowband filters tolerate moonlight but LRGB does not, the chart reflects exactly that, filter tier by filter tier.

### Moon Interference

Bright-moon periods appear as a red band. Combined with per-filter moon profiles this tells you which weeks favor narrowband work on the target and which are prime broadband windows.

### Seasonal Planning

Scan the season at a glance: when the usable time per night peaks, when the target season ends, and roughly how many nights a project needs. This is the panel to consult before committing a rig to a new target.