# Astro Mosaic v1.84 - Filtering changes

**URL:** <https://forums.ruuth.xyz/t/astro-mosaic-v1-84-filtering-changes/285>\
**Category:** Astro Mosaic\
**Created:** [February 17, 2026, 7:48pm UTC](https://forums.ruuth.xyz/t/astro-mosaic-v1-84-filtering-changes/285 "2026-02-17T19:48:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jarmor](https://forums.ruuth.xyz/letter_avatar_proxy/v4/letter/j/6f9a4e/32.png) [@jarmor](https://forums.ruuth.xyz/u/jarmor)\
**Post date:** [February 17, 2026, 7:48pm UTC](https://forums.ruuth.xyz/t/astro-mosaic-v1-84-filtering-changes/285/1 "2026-02-17T19:48:26Z")

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Changes in Astro Mosaic v1.84

**Updates**

- Rising filter — New catalog filter that shows only objects whose altitude is increasing over a selected period (1–4 weeks). Rising targets are annotated with the expected altitude change (e.g. ↑+8°), helping you plan observations that stay viable even if weather delays your session.
- Multiple time filtering — The time filter now accepts multiple times separated by commas (e.g. 22:00,02:00). All specified times must meet the altitude threshold, making it easy to find targets that remain well-positioned throughout your imaging session.
- Type filter — Filter catalog objects by type with a free-text search (e.g. “galaxy”, “nebula”). The match is case-insensitive and partial.
- Caldwell catalog — The Caldwell catalog (109 deep-sky objects) is now available as a built-in catalog.

**Fixes and Improvements**

- Improved performance by reusing the Aladin viewer instance instead of recreating it on every call.
- Catalog filtering calculations optimized for faster response with large catalogs.
- UI polish: shortened filter labels, updated tutorial, improved target format info button.