Fireball Report/Perseid Meteors

[festoon]

Last night was out with the kids looking at the Perseid Meteor shower and we saw a cracker of a fireball at 10:35pm (UK time). My all sky camera caught it too close to the horizon.

Reported it here https://fireball.imo.net/members/imo_view/report/203941

We saw quite a few Perseids over the course of an hour or so. Unfortunately my All sky camera (ASI224MC) didnt pick most of them up. I think this is probably one of the most sensitive CMOS cameras out there, so I hoped to record more. However, I guess its because they only last for a small fraction of a second, and its a question of light intensity vs time (Dose) for the meteor to be seen on the image. But if left me thinking - for meteor detection do you want a very high gain to pick out those faint meteors. I guess the down side of this will be increased noise and graininess of the image.

And here is the photo of the fireball from my all sky camera (gain set at unity=135)

 

 

[tooth_dr]

29 minutes ago, festoon said:

Last night was out with the kids looking at the Perseid Meteor shower and we saw a cracker of a fireball at 10:35pm (UK time). My all sky camera caught it too close to the horizon.

Reported it here https://fireball.imo.net/members/imo_view/report/203941

We saw quite a few Perseids over the course of an hour or so. Unfortunately my All sky camera (ASI224MC) didnt pick most of them up. I think this is probably one of the most sensitive CMOS cameras out there, so I hoped to record more. However, I guess its because they only last for a small fraction of a second, and its a question of light intensity vs time (Dose) for the meteor to be seen on the image. But if left me thinking - for meteor detection do you want a very high gain to pick out those faint meteors. I guess the down side of this will be increased noise and graininess of the image.

And here is the photo of the fireball from my all sky camera (gain set at unity=135)

 

 

 

I got a similar capture last night, that was the only one of note.  I have a little meteor camera that can pick up meteors live as they happen at 25 FPS down to mag +4 or +5 but at 8mm FL.   I think the light just gets too spread out on the all sky cameras, which are shooting at 2.1 or 2.5mm FL and F1.6.  For example I recorded probably 50+ perseids over 2 nights at 8mm covering a small part of the sky, and got about 4 on the asll sky camera.

Edited August 13, 2020 by tooth_dr

[tooth_dr]

Nice capture btw

 

[festoon]

8 minutes ago, tooth_dr said:

 

I got a similar capture last night, that was the only one of note.  I have a little meteor camera that can pick up meteors live as they happen at 25 FPS down to mag +4 or +5 but at 8mm FL.   I think the light just gets too spread out on the all sky cameras, which are shooting at 2.1 or 2.5mm FL and F1.6.  For example I recorded probably 50+ perseids over 2 nights at 8mm covering a small part of the sky, and got about 4 on the asll sky camera.

I like your thoughts - to try a slightly longer FL. I'm working at 1.55mm at f2