2STAR
-
Posts
1,099 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Events
Blogs
Posts posted by 2STAR
-
-
Plus one for the Optolong L-eNhance Filter on Emission Neb, Planetary Neb & Supernova Remnants.
-
On 13/10/2020 at 19:19, JeremyS said:
Excellent!
M 57 oops
-
m57 Ring Neb not 27
-
22 hours ago, mapstar said:
At present the sky is clear and the wind has dropped right off. Dew is forming quickly though. The milkway is running from ne to sw and is very bright.
After a few hiccups and repairs I'm going to try and get some viewing in . Having to borrow Mike's sky safari as for the first time ever I've forgot my star chart!!!
Update later 🌠🌟⭐🌙🪐
Not like you to forget your faithful Star Chart Damian !!
eric
-
1
-
-
M27 no crop, on Alt/Az mount just 2 star align 12 x 20 secs high gain on ASI studio software, Espirit 80mm, IR/UV filter.
-
1
-
-
On 16/09/2020 at 09:00, Surreydocker said:
I use 3 star alignment on my AZ GTi because I read somewhere that it was better than 2 star but after reading the posts in this thread I'm beginning to have doubts - what are your thoughts ?
2 Star is fine
-
1
-
-
I have been doing EAA for approx 4year now, always in Alt/Az, I have never done PA in eq mode.
I get some field rotation outer edge of image but just crop it out, its tricky with larger objects like my last IC1848 Soul Neb , but still looks ok, smaller DSO are even less of a issue.
lots of 20 or 30 sec subs.
Level Tripod with Mount on
I use a Telrad Finder , 20mm Reticle ep & perform a 2 star align
I then remove ep & attach my camera, the second alignment star is always on Laptop screen (though not always center)
Center Star, Put Bhatinov Mask on, get focus
Send mount to DSO & Center object on screen
Start taking exposure after messing with Histogram, gain, etc, I just do levels & Curves in Gimp (dont know how to do anything else lol)
At the moment I am trying out with the ASI Studio, due to weather so far its not helping fine tuning with all the Cloud in West Yorkshire
Attached my only image so far since beginning of September
-
2
-
-
Couple of weeks back, Mount stopped, I tried the Handset, but no movement of mount, then realised I had Cord Wrap, slight damage to Cable , but scary, fixed with electrical tape, seems ok now.
eric
-
On 06/10/2020 at 15:51, lenscap said:
Couple of years ago I was doing a first night-time test of my DIY Onstep GOTO system. (200p on EQ3-2) The scope was chugging steadily towards its target with me nervous as a kitten checking for tripod collisons, cable snags ,overheating, while trying not to trip over the laptop.
Suddenly there's a loud THUMP. Panic! Scope must have crashed into something. Where's the abort button? Stop everything.
Couldn't find anything wrong. Next morning I found a pigeon on the patio, or as Monty Python would say, an "ex-pigeon", but what had it crashed into? Upstairs a bit later I noticed the back bedroom window;
And there was the ghostly image of the former pigeon in full flight. It must have hit at maximum airspeed & just dropped stone dead.
Snap, had this twice. perfect imprint, now keep blinds closed on back bedroom window lol
-
1
-
-
On 04/10/2020 at 18:05, wimvb said:
There's no reason why the qhy163 wouldn't be up to the job. If you were to buy an equivalent new setup, the asi294mm would be the way to go. So, compare your deal on the qhy163 with a similar setup, based on the asi294mm (or qhy equivalent of this camera). Personally, I wouldn't use nb filters with a osc camera, and would love to see a shoot out, between a mono + nb, vs an osc + multiband filters.
Optolong L-eNhance is a good choice for OSC on Emission Neb, Planetary Neb & Supernova Remnant.
-
2
-
-
On 01/10/2020 at 13:35, alacant said:
Hi
Lovely shot.
I think that with correctly matched dark and flat frames and with each channel containing only one set of data -R contains only R etc.- you'd be able to process the whole of the frame without having to spend time correcting in software. Also best to keep the camera attached at the same angle, thus avoiding edge artefacts which have to be cropped.
Here's an in-your-face-shouldn't-be-here lrgb thrash in Siril. You got some great detail:)
Re: Camera attached at the same angle !, can you expand on this please as I have had this issue.
regards eric
-
On 03/10/2020 at 12:58, Mark62 said:
Your going back in time mate, I can’t even remember if I was there
I only just remember I was there Mark, kept some notes that'🤔s why
-
1
-
-
1 hour ago, MartinHiggins said:
Hi Ted, I've downloaded Sharpcap, Astrostakker and Registax today and also looked at a heap of youtube videos on how to use them. Couldn't find anything about Studio except zwo feeble offering.
Cheers
I contacted ZWO a while back regarding some instructions for their ASIStudio software, they said it was on its way !, still waiting. By the way, Sharpcap has in my opinion an overloaded UI , and can be a bit 'fussy' regarding Star Count , not as easy as some folk state ! ,ASI studio is a lot more forgiving and easier to use for both EAA & DSO, as well as plans to developed it further into a comprehensive imaging software, I haven't used ASIcap yet so cant advice on that.
regards
eric
-
I just Wrapped my 11" dewstrap around my 9.25 no issue at all still does the job as above mentioned no problem.
eric
-
1
-
-
Try Cloudy Nights if no success here
eric
-
9pm Winscar Res 4yr ago. 2/9/2016
Milky Way Visible
Andromeda Visible
Hundreds of Stars Visible
Cold but not freezing
Good Transparency
Good night for all WADAS members
Eric
-
I love these conversations even though I dont have a clue what its all about ! 🤣
eric
-
1
-
-
Have you tried the 533 in ASI Studio ?
-
On 29/05/2020 at 20:28, Northernlight said:
Hi All,
My beloved QSI 683 recently died and is being sent away to see if it can be repaired, but expecting the worst i started researching new camera to replace the QSI. Looking at the camera market with a modest budget of around £2000 - i noted that the choices for mono camera were a bit limited. The most obvious choice for a chip with near identical size to the QSI 683 was the ASI1600MM Pro - which i know is a very popular choice, but i'm weary of buying this camera as i know it's end of life.
I spoke to Astro Reseller Ianking about the choices, and he recommended the SX Trius 694 which looks like a great mono chip with very low noise - but it's a much smaller chip than the QSI. With no direct replacement in sight for the ASI 1600 - we talked about the future of camera and Ian said the in the future he expected to see less & less mono camera and that most new camera would most probably be OSC.
So this got me wondering about the future of Narowband imaging - Where does this leave us if most new sensors will be OSC ?
Modest Budget of £2,000 lol, wish my budget was that Modest.
eric
-
Matt, have you tried ZWO site ?
eric
-
I had the same scope, I used both Dew Shield & Dew strap together with no issue, I had the Kendrick 4 point connector controller (although I only ever used the one connection), I placed the Dew Band over the Shield approx in line with the Corrector Plate .
Eric
-
1
-
-
Has (UK) VAT now been added to the price of PI, if so way too expensive as good as it is.
eric
-
As we approach the new Astro season maybe we can start contributing to the site and sharing experiences/advice etc.
Eric
-
On 12/06/2020 at 15:54, Martin Meredith said:
Hola astroburning
It is hard to find a scope/camera combination that is optimal for both DSO and planetary work and is portable. The software/hardware requirements and techniques are quite different for the two (unless you are thinking of the outer planets/dwarf-planets in which case DSO-style techniques are actually quite appropriate). I guess the biggest limitation you are facing is the need for portability since this defines the mount and therefore limits the range of scope weights. Certainly choosing an ED refractor is a good idea as achromatic refractors do produce horrible star bloat that is hard to process out in an EEA context (I speak as one who started with such a scope!).
I would check out the EEA images that others manage to produce with small refractors and the kind of relatively small sensors you are considering.
There are a few more questions I would be asking:
1. What apparent field of view are you aiming for? You might plan for a large FOV to cater for bright and dark nebulae, a few larger galaxies (M31/M33) and the larger open clusters, and maybe some of the larger galaxy clusters, but 99.9% of interesting deep sky objects easily fit in a small FOV.
All other things being equal, you can achieve a small FOV with a large megapixel camera used via region of interest, or via a camera with a smaller sensor. The cameras you mention are quite suitable for the majority of objects. Other cameras such as the Lodestar are also worth looking at as they are very sensitive and simpler to use (no need to set gain) and produce excellent results. I know the trend is towards CMOS, but there is a lot of life left in CCD guide cameras.
2. Do you want colour? It is actually much harder to start off in EAA with colour than with mono for lots of reasons. Mono is much more sensitive and doesn't require spending a lot of time achieving satisfactory-looking colour, especially with software that makes it quite difficult to do so in the EEA context, where the goal is to observe and not process. I started with colour but soon 'graduated' to monochrome, and have since added an electronic filterwheel for when I want colour.
3. Are you sure you need portability? You might be surprised by how much EEA can cut through LP; the difference between your country house and city sites will be far less using EAA than visual.
Saludos
Martin (near Vitoria)
Hi Martin, I think with the new OSC ZWO CMOS cameras EAA is easy , the ZWO Studio Suite is simple to use & ideal for Planetary, DSO Imaging & of course live stacking for EAA.
Eric
Which Dedicated Astro Camera - Help Needed :)
in Getting Started With Imaging
Posted
No Amp glow on the 533, and the SQ sensor is no issue either.