# Telescopius simulator does not work on my Mac

**URL:** https://forum.telescopius.com/t/telescopius-simulator-does-not-work-on-my-mac/586
**Category:** Uncategorized
**Created:** [August 22, 2022, 6:13pm UTC](https://forum.telescopius.com/t/telescopius-simulator-does-not-work-on-my-mac/586 "2022-08-22T18:13:37Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Krzy](https://forum.telescopius.com/user_avatar/forum.telescopius.com/krzy/32/343_2.png) [@Krzy](https://forum.telescopius.com/u/Krzy)
#### Post date: [August 22, 2022, 6:13pm UTC](https://forum.telescopius.com/t/telescopius-simulator-does-not-work-on-my-mac/586/1 "2022-08-22T18:13:37Z")

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hello,

can not see the simulation of my telescope. all data are entered/telescope and camera/  
any advice how to solve it?  
thanks and regards,krzy

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### Author: ![sebagr](https://forum.telescopius.com/user_avatar/forum.telescopius.com/sebagr/32/6_2.png) [@sebagr](https://forum.telescopius.com/u/sebagr)
#### Post date: [August 22, 2022, 7:33pm UTC](https://forum.telescopius.com/t/telescopius-simulator-does-not-work-on-my-mac/586/2 "2022-08-22T19:33:29Z")

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Hi @Krzy, welcome to the forum!

Are you missing the background imagery? If so, please try closing all open Telescopius tabs and clearing your browser cache. Then restart your browser and try again.

Some times Aladin Lite (the base imagery we use) has problems displaying images. It’s usually a temporary issue, but I’m planning to add alternative imagery services for cases like this.