All Sky Camera Revisited

[JamesF]

UMa is quite obvious in the centre of the frame, but UMi is distinct to the north with Draco curling around it and Leo very obvious to the south, too.

James

[Gina]

30s exposure, gain zero, temperature -23.6°C.  Time to up the exposure to 60s I think.

[Gina]

60s exposure, gain zero, temperature -23.6°C.

[Davey-T]

I think you've cracked it Gina, fingers crossed.

Dave

[Gina]

90s exposure, gain zero, temperature -23.6°C.

[Horwig]

That is one of the cleanest ASC images I think I've ever seen, very well done.

[Gina]

Thank you very much ?

[tonyowens_uk]

(Courage x Brains x Hard Work) x (recursions)^0.5= Quality of Result!

In this case, looking at that 90 sec image the QoR speaks for itself. Stunning Gina.

[Gina]

Got dew.  Seems the dew heater isn't working.  Just been out to observatory and done some testing.  Rewired the dew heater line to the raw +13.8v main obsy supply and the increase in current shows that the dew heater is now working.  Just waiting for the heating to take effect now,

[tonyowens_uk]

Is that transparent dome polycarbonate or PMMA or glass Gina?

And are you binning the images?

[Gina]

Acrylic I believe.  No binning.

[Gina]

Now what's happened????

[Gina]

Alright again now!

90s exposure, gain 200, temperature -21.1°C.  The heating added in the casing has reduced the effectiveness of the camera cooling.  The dew is clearing.

[Kev M]

You got clear skies !

Clouded over again here...… ?

Camera looking good though, do think you have cleared the problem for good or is it temporary ?

 

 

[Gina]

Yes, clear skies here.

Can't yet tell if I've cured the problem - I need to get the positive pressure system working and see if the pressure is maintained or if I have a leak.  I think the chances are good though.

[Gina]

The dew patch has finally gone.

90s exposure, gain 200, temperature -21.0°C.

[Gina]

Wonder what the blueish streak in the centre of the image is.  Only on this image.

[tooth_dr]

That’s s great view Gina. The blue streak ?meteor?

[Gina]

I wondered that.

[JamesF]

4 minutes ago, tooth_dr said:

That’s s great view Gina. The blue streak ?meteor?

That's my best guess at the moment.

James

[Gina]

Blow up of the blue streak.

[Gina]

Milky Way showing now - top left corner.

90s exposure, gain 200, temperature -20.8°C.

[Davey-T]

All you need now is a few meteors 

Dave

[Gina]

Yes!  If any show up I'll catch them.  Running continuously except for download time (couple of seconds).  About 150 90s frames between now and daybreak.  Should catch a couple of passovers of the ISS if it isn't too light by then (4am).

[Gina]

Blue dot with halo half way to the left.