Davey-T

Took some images of Cas SN earlier but so many stars i couldn't see it 😂

Dave

Just been looking / imaging Cas SN and comet 2017 Panstarrs, may have a look at SN in NGC7814 shortly as it's easy to spot being in a galaxy.

Dave

Coming over now !

Dave

2 minutes ago, Quetzalcoatl72 said:

Also I have no idea how I would be capturing it, I guess sharpcap video would be needed with higher gain

Looks like a very bright star, you could use Vega to approximate exposure settings or Jupiter when it rises.

Dave

Tricky thing to track unless you've got a mount that you can enter the TLEs in that's capable of tracking it.

I find the best way is to look at it's track on Stellarium and select a star that it's passing close to and aim scope at that point then lie in wait for it and start imaging as it approaches, works about 50% of the time.

Scope selection is a trade off, longer focal length gets more detail but wider FOV gives more chance of catching it.

Dave

I bought the Baader one after hearing reports of light leaks on ZWO version but it still has light leaks.

Dave

Lovely image, crap weather here again.

Dave

Well caught David , Sun has refused to appear long enough to have its picture taken here for a while.

Dave

Hi and welcome to SGL, no idea what the cause is but give ImPPG a try

Dave

Release ImPPG version 0.6.2 · GreatAttractor/imppg · GitHub

Good set, small blue bits here late in the day.

Dave

Have you checked PA  with the Star Adventurer polar scope ? it's all I use with mine, if you use an app to set it you can them monitor it during imaging to see if Polaris stays tracking round the circle and if not do a little tweak to put it back.

Dave

Excessive backlash or could be something come loose, maybe a grub screw on the worm drive.

You could try setting max move in RA to max allowed but all PHD does is keep ramping up the movement until something happens which looks like what it's doing.

Dave

Nicely done, bit breezy here but at least it's stopped raining.

Dave

4 minutes ago, Nigella Bryant said:

Thanks Dave, hope you get some rays soon. I'm clouded out today. 

Just watched Country File weather for the week, apparently there's a drought in Scotland whereas my little corner of the UK has had twice the normal rainfall for June.

Dave 

Superb images Nigella, Sun hasn't shown it's face here long enough to capture it for days.

Dave

3 hours ago, SEAz said:

I am just start with ASIair. I am encounter the sea of colored dots.  What did you find as the problem? Thanks

 

Hi and welcome to SGL, the coloured spots were to do with focusing, never really got it sorted as using the ZWO EAF focuser and auto focus in the latest update which works really well.

Dave

Very nice, the only problem with the Skyris 274 is the maximum 20fps frame rate, one of the more modern CMOS cameras have much higher frame rates.

Dave

Well caught, had a short display here before they were hidden by  "real" clouds.

Dave

It's expecting a lot considering we're aiming a short tube at a point over 400 light years away to get any sort of precise accuracy, if you repeat the process without any adjustments it usually comes up with a different error.

Dave

Good catch, only clouds here.

Dave

Don't need the shutter release cable, images are saved to camera SD card, don't think it locks shutter before taking image.

Dave

One more point of annoyance, they keep introducing new features but never update the manual, seem to rely on someone posting a YT how to video.

Dave

2 hours ago, iapa said:

I take darks, and flat-darks using the ASIAir Por.

• Take FLATS, note the exposure,
• Create a schedule for DARKS and set the exposure to that used for your FLATS - remembering to cover the lens oops 😳
• Copy all the data to the machine used for processing,
• Create a new folder, called FLAT-DARKS
• move the FLAT-DARKS to the new folder.

My preference is to keep FLATS and FLAT-DARKS under the lights folder for that session, although I date/time stamp file names any way.

For BIAS and DARKS I just maintain a library.

Because the new CMOS cameras do not produce a lot of heat during flats due to the short exposure, an alternative is to use a master BIAS as your FLAT-DARK.

 

 

That's what I do but would be easier if they implemented it in the App, wouldn't take a lot of effort.

Dave

1 hour ago, The Admiral said:

What about this?

https://www.firstlightoptics.com/zwo-accessories/zwo-wifi-extender-for-asiair-pro.html

Ian

A few folks on the Asiair Pro Facebook site still having problems even using that.

Dave

1 minute ago, Astro Noodles said:

if objects in space/time can travel at  no more than the speed of light,

IIRC on a recent Stargazine Live episode the guy speaking ( can't remember his name ) said that there was no speed limit on the expansion of the space containing distant galaxies so it could be expanding faster than the speed of light.

Dave