# Emerald Observatory for iPad

> Utilities

Canonical page: [https://chrome-stats.com/d/id364904759](https://chrome-stats.com/d/id364904759)

## Overview

- **ID:** `id364904759`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Bjorn Freeman-Benson
- **Category:** Utilities
- **Rating:** 4.90 / 5 (91 ratings)
- **Version:** 1.6.1
- **Last updated:** 2026-09-19
- **First published:** 2010-04-01
- **Size:** 16 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/emerald-observatory-for-ipad/id364904759)
- **Website:** [https://bjornfreemanbenson.com/emerald-observatory](https://bjornfreemanbenson.com/emerald-observatory)
- **Privacy policy:** [https://bjornfreemanbenson.com/emerald-observatory/privacy-policy](https://bjornfreemanbenson.com/emerald-observatory/privacy-policy)

## Description

**Emerald Observatory for iPad** brings a comprehensive astronomical dashboard to one screen. Track local and UTC time, solar and sidereal time, sunrise and sunset, twilight, planetary rise and set times, moon phases, and a heliocentric orrery. View altitude and azimuth data, day and night regions across a world map, the Equation of Time, and the Moon’s orientation and apparent size.

Use your iPad’s location or enter coordinates manually, synchronize displayed times with NTP, simulate eclipses, and set daily alarms with local notifications. The display can remain on continuously, while interactive controls let you move forward through months, days, years, hours, and minutes.

## Rankings

- #139,857 — Overall

## Similar extensions and apps

- [Emerald Chronometer](https://chrome-stats.com/d/id284953670) — 4.90 / 5
- [Lunea Observatory](https://chrome-stats.com/d/id6747781460)
- [ORBITARIUM: Solar System Now](https://chrome-stats.com/d/id6804200633)
- [Sun n Moon for iPad](https://chrome-stats.com/d/id366903461) — 3.80 / 5
- [Solar Time](https://chrome-stats.com/d/id1100646247) — 3.80 / 5
- [Orrery](https://chrome-stats.com/d/id6776413985) — 5.00 / 5
- [GPS Astro](https://chrome-stats.com/d/id369884042) — 4.70 / 5
- [Astron Skyfinder](https://chrome-stats.com/d/id1495600954) — 5.00 / 5
- [CelestialGuide](https://chrome-stats.com/d/id649358382) — 1.00 / 5
- [Sun & Moon 3D Planetarium Pro](https://chrome-stats.com/d/id1198962475) — 4.70 / 5
- [Planet Track Mini](https://chrome-stats.com/d/id6794749162)
- [SkyChrono](https://chrome-stats.com/d/id6756916318)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id364904759)