Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

stargazine_ep3_banner.thumb.jpg.5533fb830ae914798f4dbbdd2c8a5853.jpg

codeman

IC4604 in LRGB

Recommended Posts

IC4604 in LRGB Filters. Taking for Namibia during my visit in June 2019. This beautiful nebula is part of the rho Ophiuchi colorful cloud, i the center a 3 blue bright stars the reflect the blue light on the nebula.

Photo Details:
Lum - 20 x 5min = 100min
RGB - 5x5min for each channel at BIN2, 75min

Total Exposure: 175Min (~3 Hours)

Telescope: ASA 12'' F3.6
Mount: DDM 85 Unguided
Camera: FLI 16200 Mono
Filters: Astrodon

Thanks for watching,
Haim

My Flicker Page: https://www.flickr.com/photos/101543943@N04/


  

IC4604_LRGB_1.jpg

  • Like 16

Share this post


Link to post
Share on other sites

Yikes! That IS nice!!

  • Like 1

Share this post


Link to post
Share on other sites

Now that is just cheating, plain and simple.  Namibia!!!  wow.  Such small amounts of data needed.  I would give almost anything to experience conditions like that.  If you use PI invert teh image and use SCNR green, re-invert- and the red rims will vanish--No need for a mask in this case.  beautiful

Rodd

Share this post


Link to post
Share on other sites

Haim, is this another one where you just take your laptop to capture the images using commercial equipment and then publish the images?

Share this post


Link to post
Share on other sites

Thank you all.

John - I don't need my laptop, briefly, the observatory has its own PC, I just plan my nights in advance and then operate the Autoslew (mount), maximDL (camrea and focuse), sequence (ASA guiding system) , The SkyX, and take subs, flats, dark, bias...at the end I download everything to my storage and than I have a full year to process after this "fishing" hunt :)

 

  • Like 1

Share this post


Link to post
Share on other sites

Sorry Haim, for me that is just buying time on equipment and apart from the processing takes very little skill.

I note that you publish in magazines many of your images as well with no reference to that fact.

They are truly beautiful images, but without mentioning precisely how they were captured, they don't carry the same amount of weight of someone like Barry Wilson and Steve Milne who travel regular to control their own mounts with all the paraphernalia that goes with, buying your own equipment, personally setting it up, problem solving and sorting out gremlins and all from over a 1000 miles away from their homes.

No offence intended, but last time you published an image you said that you take your laptop with you and this time you are saying that you use the observatory's PC, in my opinion its not really cricket.

Share this post


Link to post
Share on other sites

Not relay understand where are you going with this :) and yes it is a bit offence, since you don't know me personalty and my skills. 

I do take my laptop to my travels to Namibia and some other stuff, I didn't say I don't bring my laptop with me, I said that I don't need laptop for operating the observatory and take the photos, just storage to download the images, I thought you are asking how it is done.

I will let you know when I will upload something from my home observatory which I fully build on my own, if you want to see my skills in light pollution.

 

 

Share this post


Link to post
Share on other sites

I think you misunderstand me. I am not disputing your skills at processing, just the merit of the capture.

What I said was that by not mentioning how you captured the images and now knowing how it was captured, doesn't carry the same merit as if it was your own equipment set up by yourself, owned by yourself.

Share this post


Link to post
Share on other sites

Brilliant image Haim.

Do professional astronomers own the telescopes they use? Very rarely, do you know how much a 10 metre telescope costs? If it's OK for them then it's OK for me.

Oh for some *truly* dark skies. I think I would be frustrated on coming home from a holiday in Namibia. My skies are fairly dark (SQI 21.66) but Namibia is in a different league, and would make me dissatisfied with where I am. It would be different perhaps if I still lived in London, at least there I *know* the sky's rubbish.

Share this post


Link to post
Share on other sites
13 minutes ago, DaveS said:

....Do professional astronomers own the telescopes they use? Very rarely, do you know how much a 10 metre telescope costs? If it's OK for them then it's OK for me.

My concern was: -

6 hours ago, Jkulin said:

What I said was that by not mentioning how you captured the images and now knowing how it was captured, doesn't carry the same merit....

Just my opinion Dave, for me unless I have set up my own equipment, captured the images my self and processed then I would never publish, intimate or omit that it was anything else.

I know this is an ongoing debate, that reflects so many peoples different opinions, that there is never going to be agreement.

Share this post


Link to post
Share on other sites

Yes, this debate can run and run, but I won't hijack Haim's thread further by continuing it here.

Just a pity that the Rho Ophiuchi star clouds are so low here and buried in clag, even from Dorset's Jurassic Coast.

Share this post


Link to post
Share on other sites
13 hours ago, Jkulin said:

I know this is an ongoing debate, that reflects so many peoples different opinions, that there is never going to be agreement.

Remote imaging is just another form of astronomy so, so long as there is no misrepresentation as to who owns the equipment, we don't see a problem. There is no need for anyone to be unpleasant. 

  • Like 4

Share this post


Link to post
Share on other sites

A wonderful image.  I love to see what can be achieved from truly dark sites using high quality equipment.  Am I jealous, oh yes!  Am I resentful, not in the least!  I would be mortified if people who go on astro holidays or have remote observatories felt it in appropriate to post here in just the same way as I would be if people worried about posting a moon image taken through a Tasco scope using a mobile phone.  Kudos to you Codeman, and what Rodd said about the stars!!

  • Like 4

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By stevewanstall
      Messier 57 is is just coming into a position for a decent look around 11 30 pm. IT is a colourful object and I thought it would give me a good target with which to practice my colour developing in PS/Lightroom. I have read so much about how to produce a LRGB image from the four stacked/calibrated luminance, red, blue and green images,  a lot seems contradicatory and some, when followed, gave me colour yes, but not as we know it. I am sure a fair chunk must be put down to me. Anyway, I now have a work flow which gives me colour, sometimes resembling what other people have obtained. Progess of sorts.
      This images is based on 114s subs at gain 139, offset 21.
      L 39, R 20, G 20, B 19
      Calibrated  and stacked in DSS (flats, dark flats and darks)
      Messier 57 Ring Nebula in Lyra
       

      NASA: M57, or the Ring Nebula, is a planetary nebula, the glowing remains of a sun-like star. The tiny white dot in the centre of the nebula is the star’s hot core, called a white dwarf. M57 is about 2,000 light-years away in the constellation Lyra, and is best observed during August. Discovered by the French astronomer Antoine Darquier de Pellepoix in 1779, the Ring Nebula has an apparent magnitude of 8.8 and can be spotted with moderately sized telescopes.
      Equipment: Celestron 9.25 XLT at F10,  Skywatcher EQ6 Pro GEM, ZWO 1600MM Pro, ZWO EFW with ZWO LRGB filters, QHY5IIC guide camera on Skywatcher 9 x 50 finderscope, Celestron Focus Motor
      Software: Ascom 6, Eqmod, Cartes du Ciel, AstroPhotography Tool, PHD2
       
    • By Camalajs525
      Since I am very new to this, I struggle a lot. Especially when observing planets and also recently deep sky objects. My telescope is an amateur telescope and its almost 11 years old (The telescope was re used a year ago). During summer of last year I took photos of Saturn,Jupiter and a month ago took photos of Venus and Mars. About 2 days ago I stumbled upon a new thing in the sky, (Unfortunately, I didn't take a picture). It definitely was in the Orion constellation  as I had observed Betelgeuse and the 3 stars that were close to each other. After a couple of minutes later I saw 2 stars next to each other and another two which were on top of the other star, surrounding these set of stars were a blue-ish and grey-ish colour at the same time. I had done some research and many people told me it was the trapezium cluster found in Orion. I honestly don't know. Any ideas? Thanks. 
    • By lalou
      Hi! I've recently acquired a new Astromodified Canon rebel XT and I've tried to take pictures of nebulas using it but I've noticed that there are these weird black artifacts that keep appearing in my images. Would like to know if anyone has experienced this before? Or are these dirt/dust specs on the camera, filter, and telescope glass? I've attached some of my edited and raw pictures for your reference. The black artifacts can already be seen in the raw image of the horsehead nebula and after stacking I think it got amplified. Anyway, advance thanks and I hope everyone's doing well.
       

    • By maxchess
      This may be an artifact, but I took this shot of the Orion Constellation from the Canary Islands and it showed a small nebula around Beteleguse. Do you think this is real? The shot was taken with a dual band filter which brings out the Ha.  I initially assumed it was a camera artifact, but I took more shots with different camera positions and it was still there.  There are some on-line articles about such a nebula. My first reaction was to edit it out, but I think it might be real and only visible because Beteleguse has dimmed by over 50%.  What do you think?
      Max
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.