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.



Advanced Members
  • Content Count

  • Joined

  • Last visited

Community Reputation

83 Excellent

About Jarvo

  • Rank
    Star Forming
  1. Jarvo

    First Neptune

    Hi All. The tests continue with the new camera - this time I wanted to see if I could 1) see Neptune visually for the first time (mission accomplished ) and 2) then have a go at capturing it with the camera. The cameras sensor is really sensitive and everything is really bright - I was surprised at just how bright Neptune was on the screen. Colour was also evident watching it on the viewer. With the aperture I have I won't be seeing any details on the surface but will try and capture Triton in future captures. Happy to get a reasonable disk and colour for now though. Had all sorts of difficulties using Registax 5 (couldn't load avis, processing in B/W) reckon its not happy with the new laptop I have so downloaded 6 which worked better though I need to go back to school with this version. Might try and get it at least bit more in the centre next time. The learning continues Kit used: Skywatcher 150mm Maksutov-Cassegrain 2 x Apo Barlow QHY5-III 290C camera with IR filter Capture software: Sharpcap Stack size: 500 / 937 Processing software: Register 6 Post processing (limited): Gimp Thanks for looking. Steve
  2. Thanks for the advice Louise. It's all coming back to me now
  3. Hi Louise -the camera has a really sensitive chip which enables some DSO astrophotography as you can see the images on screen. I've reached out to QHY on the noise issue. I'll definitely be extending the exposure times next time I'm out. Steve
  4. Thanks for the replies you two. John, Camerasettings.txt below: [QHY5III290C] Debayer Preview=On Output Format=SER file (*.ser) Binning=1x1 Capture Area=1920x1080 Colour Space=RAW16 Pan=0 Tilt=0 Force Still Mode=Off Enable Live Broadcast=Off USB Traffic=9 Offset=80 Amp Noise Reduction=On Frame Rate Limit=15 fps Gain=555 Exposure=1084.4717743731 Timestamp Frames=Off White Bal (B)=64 White Bal (G)=64 White Bal (R)=64 Contrast=0 Brightness=0 Gamma=1 Apply Flat=None Subtract Dark=None #Black Point Display Black Point=0 #MidTone Point Display MidTone Point=0.5 #White Point Display White Point=1 TimeStamp=2018-10-10T20:16:54.1040419Z SharpCapVersion=3.1.5219.0
  5. Hi all - it seems like ages since I posted anything but a poorly Missus takes priority. I've just bought a new QHY5-III290C camera (which is a thing of beauty in itself). I went outside a couple of evenings ago eager to get some first light going through the thing. I've attached the initial image from the camera and Sharpcap and I'm looking for this forums expertise. So the kit set up consists of: Skywatcher Pro 150mm Maksutov-Cassegrain OTA EQ5 Mount and tracking Said QHYIII290C camera IR filter Object in question is M15 in Pegasus. Taken with the camera using Sharpcap then processed in Deep Sky Stacker. 100 x Lights (sub 1 second) plus 20 darks. If someone could take a look at the attached picture and share some views. Theres a lot of noise in the image which is my main query. Wondering whether its caused at the camera end, the sharpcap and or in post production. This is a first image so wasn't expecting it to be pretty - just happy to get an image on the chip ! If you need anymore info let me know. Thanks in advance Steve Autosave002.tif
  6. Guys - You are all stars - thanks for the responses very helpful. I'll post an update once I've made my decision. Thanks again ! Steve
  7. Hi All, It's been a while and somethings eating me up. I've got a 6" Mak which I love and will never part with. My dilemma is this. Jupiter's starting to sink, Saturns below the observable bottom lip of my Observatory and Mars is some way off its best. The Mak, let's be honest, ain't that good on Deep Sky stuff so I'm looking at my options. I'd love a Triplet but can't afford (won't pay) the asking price. A Dob is out because the central pillar in the observatory hampers having one. Which leaves me with a Doublet refractor. I want one that is at least the diameter of the Mak (6" / 150 mm) and the ones I'm looking at from Bresser and Explore Scientific are both short focal length refractors and in the £500-£600 category. Has anyone compared the two types of scope? There is an extra inch from not having the central spot on the Mak which I presume increases the detail / resolution but is it noticeable? I'm expecting some Chromatic Aberration. But as its going to be for Deep Sky objects, this shouldn't be too much of an issue. I think its worth the punt. I'll get some nice wide field views of some Deep sky stuff. If anyone has had a direct comparison I'd be interested to hear their views likewise any good or bad points or feedback from real users would help. Cheers all and Merry Christmas Steve
  8. Jarvo

    Titan, that would be an acceptable catch!

    I can't believe us amateurs are actually discussing teasing out detail on Titan. Shows how far the hobby has come. Cracking images by the way. Cassini should be jealous jarvo
  9. I found Venus this evening with the binoculars relatively easily but couldn't train the scope on it do to its location. Crescent was prominent. Tried to get an iPhone shot through the binos through realised I was getting a little desperate so I stopped to preserve what little dignity I had left
  10. Greetings for the day lovely forum members. Was keen to see if I could get another shot of Venus this afternoon before it gets swallowed up by the Sun later this week. Went out at 15:00 and managed to catch Venus in the 10 x 50 Binoculars after a careful sweep making sure the Sun was tucked safely behind the shed. The crescent was very prominent and a joy to see (first time I've seen the phase so skinny!). Looking at the literature around at the moment the crescent is around 2%. All stacked in the usual way via Registax and processed in Photoshop. After recording the AVIs i took some time for some traditional observing of Venus. The image was getting a bit wishy washy but still fascinating to watch. I took the liberty of snapping the eyepiece view through the i-phone as well ans the main camera so newbies and old hands alike can see the comparison - the eyepiece used was a 6mm Japanese Orthoscopic I've have since I started this hobby many years ago. Might not get many more opportunities before inferior conjunction. Thanks for looking Jarvo
  11. Jarvo

    The moons of Jupiter!

    Simply stunning. Callisto looks lovely. Jarvo
  12. Jarvo

    3% Crescent Venus!

    Evening all, managed to nab Venus during the afternoon in both Binoculars and the Finder scope so I couldn't resist firing up the laptop. Venus is big enough now to see the crescent in the binoculars although its clearer in the day due to the lack of glare (took a peek tonight and it wasn't as clear though that may be my ageing eyes). Was doing a bit of research in one of the popular astronomy magazines and there is a tutorial on achieving a 1% crescent which will be the next challenge. Thanks for looking. Jarvo.
  13. Jarvo

    Wood Treatment

    I used Sadolin followed by yacht varnish
  14. They're awesome. Would be interesting to see what detail you can glean from the four Galilean satellites. I shall hold my breathe and wait...... Jarvo
  15. Hi Everybody, Went out this evening but Venus had gone to far over into the trees and below the line of the observatory. I Won't waste anyones time publishing the results coz they ain't pretty. That said I did run some AVIs on the 2nd and have now got round to processing them. Time is running out for some decent shots but I'm going to persevere in the daytime to see how much of a skinny crescent I can achieve. Usual set up of the 6"Mak with a trusty old Apo Barlow from Astro Engineering (think my 2.5 x TV Powermate is a tad too much as I always seem to get sharper results with the APO Barlow.) Stacked in Registax 5.1 (Where else ?) and tweaked ever so slightly in Photoshop. Thanks for looking. p.s isn't it nice to have slightly warmer evenings to perform our craft? Jarvo

Important Information

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