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Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 11:16 am
by peter shah
I've just got back from my visit to La Palma...well what can I say other than 'jaw dropping' ...those who have visited will already know. I drove up the one and a half hour journey to the top every night for five nights and stayed till the early hours. Seeing Scorpio in full for the first time was amazing, its now my new favourite constellation. Being in the presence of these historical observatories along with the ink black skies will stay with me for the rest of my days. The zodiacal light stretched up way above my head it was magical.

I had a chance to go into the William Herschel and Isaac Newton Telescopes. There is a massive amount of work going on with the WHT at the moment as they are completely replacing the telescope control systems. They were testing it the night I took this shot.

Sagittarius and Scorpio rising above The William Herschel Telescope. Taken with my Sony A7s and Nikon 50mm lens. 3x 20s two panels dark frame subtracted.
Image

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 11:46 am
by carastro
Fabulous MW Peter. Sounds like you had a fabulous time.

Looks like you caught half the Antares region, my most favourite area of the skies, and my nemesis. did you perhaps capture it on another night?

Carole

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 12:32 pm
by peter shah
carastro wrote:Fabulous MW Peter. Sounds like you had a fabulous time.

Looks like you caught half the Antares region, my most favourite area of the skies, and my nemesis. did you perhaps capture it on another night?

Carole
Thank you Carole yes it is mine too...and the whole point was to image it....I do have a story to tell about that. First night I had mount failure. I got everything polar aligned but the mount wouldn't accept site location or date and time settings nor would it connect to the laptop despite testing it all before going out. So I decided not to waist an evening and do unguided exposures...no sooner I pointed the mount...Pow! a small spark and everything shut down.... Gutted was an understatement. So anyway I spent a day getting the mount up and running trying to sort out the issue borrowed a car battery (baring in mind I was ruining everything from the cigarette socket from the hire car the night before...) So now everything was working...or so I thought. The subs were coming in guiding beautifully 15mins per sub, but the signal just didn't look right for 15mis. I took a closer look at the flats after and they look very patchy, very similar to an issue I had with my H35 a few years ago when a diode blew. The camera worked and captured but had a very uneven frame....I fear the same thing has happened so I'm going to contact starlight xpress to see if they can take a look at it. Of course it doesn't help that fact I've come back with well quite frankly not much I can do anything with. But I still had a wonderful time and have an excuse to go back and try again.
I did do some wide field shots on my Sony A7s so all was not lost including a massive mosaic I've still got to tackle over looking a cloud filled caldera. I also had a visit to the Isaac Newton Telescope so although I didn't get that shot I still came back with a lot.

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 12:49 pm
by julianr
Fantastic image Peter - sorry to hear about your problems though- you will get it sorted soon

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 1:33 pm
by GanymedRN
Hi Peter,

Stunning image of the milkyway. :thumbsup:
I guess you know Murphys law and I am sorry it hit you exactly in the worst point in time. :crying:
As you said. There is now a good reason to go back :))

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 3:26 pm
by carastro
How awful Peter, to go all that way and have that happen. I have no idea what a diode is, but obviously something that couldn't be fixed there and then.

The only time I have been away with kit was staying at our friends near Gibraltar, where I had power on their patio for the laptop and everything else was run on batteries (DSLR and Skytracker), but obviously your kit would have been far superior but for things blowing. Ouch.

I have half an Antares region (widefield DSLR) taken this way, and I now am hoping to try to get back there next year with my Atik camera attached to a camera lens to get some luminance to layer over the top of the DSLR colour:
I have tried it out with some "borrowed" Luminance and it doesn't look too bad using the DSLR for colour:

This is stage 1 (the DSLR data).
https://www.astrobin.com/full/300756/C/

This is my DSLR data combined with the borrowed Luminance.
https://cdn.astrobin.com/thumbs/8s3Anbr ... hqkGbg.jpg

Carole

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 3:57 pm
by galileo
Very spectacular Peter.

Can't believe your luck, that would happen to me for sure too. :(

So was it clear every night or are you above the cloud at the observatories ?

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 4:10 pm
by peter shah
galileo wrote:Very spectacular Peter.

Can't believe your luck, that would happen to me for sure too. :(

So was it clear every night or are you above the cloud at the observatories ?
I cant say I wasn't feeling the frustration...but to come back with one good image is satisfying enough....so its all good really...plus I've told the wife I've got to go back.
The weather was mainly clear across the island but I was above the clouds at about 7500ft. I do have a shot of that but I've yet to process it

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 5:08 pm
by peter shah
carastro wrote:How awful Peter, to go all that way and have that happen. I have no idea what a diode is, but obviously something that couldn't be fixed there and then.

The only time I have been away with kit was staying at our friends near Gibraltar, where I had power on their patio for the laptop and everything else was run on batteries (DSLR and Skytracker), but obviously your kit would have been far superior but for things blowing. Ouch.

I have half an Antares region (widefield DSLR) taken this way, and I now am hoping to try to get back there next year with my Atik camera attached to a camera lens to get some luminance to layer over the top of the DSLR colour:
I have tried it out with some "borrowed" Luminance and it doesn't look too bad using the DSLR for colour:

This is stage 1 (the DSLR data).
https://www.astrobin.com/full/300756/C/

This is my DSLR data combined with the borrowed Luminance.
https://cdn.astrobin.com/thumbs/8s3Anbr ... hqkGbg.jpg

Carole
that's superb carole....I haven't looed at mine properly I don't think its going to be any good with the camera issue

Re: Wiliam Herschel Telescope

PostPosted: Sun May 20, 2018 6:12 pm
by carastro
Thanks Peter, well it all depends on what I can manage to get in the way of luminance, as all I really have at the moment is the colour.

Carole