Rain alarm Generic equipment discussions · Arun H · ... · 36 · 2397 · 1

AstroBen60 10.24
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I had a cloud watcher pocket, and tried many things.

Honestly, the best thing I tested for this purpose is simply … Rain Alarm.
A killing simple android phone app that runs an alarm as soon as rain is detected in a range circle that you set up.
It never failed to warn me.

It's amazingly simple and reliable.. and free ( you may want the 10$ version that allows you to set up different ranges for different alarms ).
I even decided to sell back my Cloud watcher after using for a couple of months.

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robert.zibreg 1.20
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https://eu.lunaticoastro.com/product/aag-cloudwatcher-cloud-detector/ ASCOM compatible
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Krizan 5.94
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I haven't read all the post, so, this may have been mentioned.  The Lunatico cloud & rain detection system.  Only in rare situations have I ever experienced rain without clouds over head.

shop.lunaticoastro.com/category-product/cloud-detection/

Here is the Smart phone software.

shop.lunaticoastro.com/category-product/observatory-monitoring/

Curious as to why/how anyone would be imaging with clouds overhead anyway.  

Lynn K.
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sebaromano 1.51
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I have been looking for a good solution in the past months and I settle with a good compromise (price vs reliability) that is working quite great for me.

I works perfectly!!! When the sky gets covered or if rain drop the camera send the signal to NINA which set the condition as UNSAFE and direct the mount to park in horizontal position and send me an alarm to my phone.The only caviat is that you need to train the AI App with your sky camera view and sky condition. But it is very easy.

All the above seems complicate BUT it is NOT. If I did anyone can do . Just do some reading on the links I provided (lots of forums out there about this type of solution) 
It works like a charm and finaly I got a great piece of mind after trying weather apps which cannot be 100% reliable. It costed me less than 200 EUR (which in the end is the cost of the all sky camera + box DIY)

Also note that here in Denmark the weather condition is VERY imprecdictable. It can changes in a matter of minutes and completly different from the "hourly" local forecast. This is why I found the above solution a very reliable way to go...in my experience!!!

Hope this hepls!
Seba
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AstroBen60 10.24
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Actually, Rain Alarm is not a forecast.
It's base on observations 
So, as soon as rain is falling within your sector, you get an alarm 
Sensitivity can be tweaked 

As far as I tested this, I can say it was more reliable than every other thing I tested , including Pocket watcher . Not saying it is bulletproof, but no system is 

The main advantage is that you get an alarm BEFORE it's raining at YOUR place.
​​​A rain detector will run when it's too late.
A cloud detector is more conservative though
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robert.zibreg 1.20
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Remember, your telescope/camera can sustain few drops of rain. Just think about all the dew that accumulates on gear during the night.
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CCDnOES 8.34
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Robert Žibreg:
Remember, your telescope/camera can sustain few drops of rain. Just think about all the dew that accumulates on gear during the night.

The issue is that dew is typically fairly even so if it is not heavy enough to form into drops it evaporates evenly from optics so the only issue is that it can attract dust and make it stick better. With rain, even light rain, spots are inevitable.
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sebaromano 1.51
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Bill McLaughlin:
Robert Žibreg:
Remember, your telescope/camera can sustain few drops of rain. Just think about all the dew that accumulates on gear during the night.

The issue is that dew is typically fairly even so if it is not heavy enough to form into drops it evaporates evenly from optics so the only issue is that it can attract dust and make it stick better. With rain, even light rain, spots are inevitable.

I agree and this is why I like the solution I use (see above) with parking the scope in horizontal position as soon as the sky is covered with clouds ;)
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sebaromano 1.51
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Bill McLaughlin:
Robert Žibreg:
Remember, your telescope/camera can sustain few drops of rain. Just think about all the dew that accumulates on gear during the night.

The issue is that dew is typically fairly even so if it is not heavy enough to form into drops it evaporates evenly from optics so the only issue is that it can attract dust and make it stick better. With rain, even light rain, spots are inevitable.

I agree and this is why I like the solution I use (see above) with parking the scope in horizontal position as soon as the sky is covered with clouds ;)

I agree and I do the same
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StarSailor 0.00
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I ve done it through my home assistant using a 20 euro zigbee rain sensor. I ve set an automation where I can get a notification through my phone or set an alarm or beeper. It s a bit DIY and needs some easy coding (ai helps a lot here) but probably cheaper than an expensive weather station and it can do so much more.
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