What is the BAT?

The Big Amateur Telescope (aka The BAT) is a collaborative, online astrophotography group of amateurs who all point their telescope at the same target and then share their data in order to obtain the best possible image.  The BAT is free and fun and we have members from all corners of the globe who meet in dedicated channels on the astrobiscuit discord server. As well as taking great images we hope you will find nerd mates… and in a few years go visit them on your hols!

Our members are from all over the world…


If you click one of these links anything you buy from the store in the next 10 days will earn astrobiscuit a commission

Simple Workflow

  • image one of our targets

  • upload the stack of you imaging session to the BAT

  • If you wish you can process the data gathered from all our members or you can leave it up to one of our Master Processors.

How to join the BAT?

To be a BAT member you need to be able to take pictures of deep space or be able to process pictures of deep space. So please show us what you have done by dropping a jpeg or tiff of one of your seep space images into  in a channel called the BAT EXAM which is one of the last channels on the astrobicuit discord server. If your picture is of a reasonable standard then we will let you in. If you are not on Discord please sign up to Discord before proceeding.

How hard is the BAT exam?

The BAT exam is really designed to prevent us being flooded with folks who haven’t actually taken a reasonable deep space astrophoto. Here is a shot of the North American Nebula which passed the BAT exam. Hopefully it will give you an idea of the kind of standard we’re after. Most folks get through.

BTW we also do value folks who are good at processing so if you have processed other peoples work then show us what you’ve done and if its competent we’ll be very happy to have you join our ranks.

How do I join Discord

When you click on the link to take the BAT exam and you will automatically be invited to join the astrobiscuit discord server. If you are not on discord you will need to register first. I recommend doing this with the discord app on your phone (see “Old farts guide to joining Discord” video below). Once registered the link to take the BAT exam will take you to the astrobiscuit Discord server. You’ll find the bat exam channel in the left hand column near the bottom of the list. 

Live BAT Meetings

I try to hold batmeetings once a month on Saturday 9pm (UK time) on the astrobiscuit discord server.  I chair the bat meeting, where me, the bat mods and the bat members look at up coming targets and look at how far we have got with the target we are currently shooting and we answer questions and receive suggestions… if you’re a member you can join in. I try and give fair warning as to when they are happened. If you’re not a member you can still catch each meeting on The Astrobiscuit Discord Community YouTube channel.