Jump to content

We politely request that members refrain from discussing politics and/or the Brexit debate on East Midlands Stargazers. Let's keep it to the topic at hand... Clouds. ☁️

  • Join the online East Midlands astronomy club today!

    Test

  • Community Highlights

    • IC 405 SHO
      Really needs more data
      3 x 1800 S2
      3 x 1800 Ha
      1x 1800 O3
      Tak102 reduced to 5.7
       
      • 2 replies
    • Prism Shoot-Out
      I decided on a shoot-out with two conventional 1.25" prism diagonals: a Takahashi TAKSD1 and a Baader Planetarium T-2. The telescope used was an Orion 90mm StarMax Maksutov.
       

      Baader Planetarium Prism Diagonal T-2/90deg and Takahashi TAKSD1
       
      These two prism diagonals were also compared against a third which is a 1.25" Baader Zeiss Amici (also equipped with a helical focuser).
       

      Baader Zeiss Amici
       
      The target was primarily a setting twilight Venus, although I also intended to view Saturn as it was in conjunction with Venus on the 11th of December. I didn’t have much time before both planets were too low so I primarily used an 18mm Astro Hutech, giving 69x. Venus was very bright and easily seen early on with a 25mm AH orthoscopic. For Venus I also employed a Baader Double Polarising filter.
       

      Venus/Saturn conjunction
       
      The Tak’ was up first.
       

       
      It is a lightweight diagonal and I have read reviews stating that the housing is plastic. I'm pretty sure it isn't and is a light metal alloy or possibly aluminium. I'm not so sure about the base plate, but I'm not totally convinced it isn’t also metal. It could very well be be a hard type of plastic. Unlike the Baader diagonals there is no filter thread in the nosepiece. Some have complained about the Tak's plastic collet snagging undercuts. I haven’t had any real problems although it helps if you use smoothies and barrels with shallow undercuts or those with lower lip flares (GSO, Tele Vue). The TAKSD1 gave a bright, sharp image with no light scatter and easily revealed the Venusian phase. The conventional Baader was next, followed by the Amici. Apart from the mirror reversing I could tell no difference between the Tak’ and the Amici. There was no hint of the prism roof with the Zeiss Amici. The Baader Planetarium T-2 also gave a sharp image, although I thought it was fractionally darker.
       

       
      The amount was almost imperceptible though and may have been my imagination. As Saturn became more prominent I switched all three to that.
       

       
      I can't choose a real winner. The Takahashi gave a bright, sharp image as did the Baader Zeiss Amici. The Baader bog-standard wasn't really any different and had the advantage over the Tak' of having a helical focuser. The Takahashi and standard Baader diagonals are about the same price.
       
       
       
       
       
       
       
       
       
       
       
       
       
       
      • 3 replies
    • Meteors Sept, Oct & Nov
      Meteor detection counts September - November 2019
       
      Although I've not really posted any results, my meteor detector has been running since mid August without too many major issues.  It's tucked away in a corner and I often forget it's still running.
       
      I've finally got around to updating my spreadsheet from the data automatically captured by the Spectrum Lab RMOB files.
       
      I had a few problems in September with local interference causing some crazy readings (hundreds per hour in some cases), i zeroed out those that were obviously wrong.
      I'm fairly certain some of it was due to heavy electrical equipment being used over the road and in direct line of sight of the antenna.
       
      October and November were both much better with good levels of hits per day and no problems from external interference.
       
      September:

       
      October:

       
      November:

       
      I've seen posts on the RMOB facebook page of people detecting Elon Musk's Starlink chain as it goes over Southern France.
      I've checked my captures and not seen anything that I can link to the pass times ...... which is good as I don't actually want them!
       
      Current RMOB data for December:  This is live so will update each hour with the latest results.

       
       
      Al
      • 5 replies
    • Moon 3 December ..
      Very, very rarely do I have a go at the moon, but it was so prominent last night I had a go at 18:30. Plan was to go to an observatory meeting and then come back and go deep sky. When I git back it had all gone ☹️
       
      Still, pleased with this, 500 frames on the ASI183MM through the GT81, processed in Autostakkert and Registax..
       
       
      • 2 replies
    • Picture of the Month November 2019
      Picture of the Month November 2019
       
      A poor month clear sky wise unfortunately but some hardy folk have been out there catching photons, well done all.
      • 9 replies
    • It's Christmas Time!
      We've made a few festive tweaks to the forum to celebrate the festive season: twinkling lights, a snowy logo and falling snow. 🎅🏻 Enjoy and Merry Christmas!
      • 9 replies
    • Hubble image / Todays 'APOD' - Hoag's object PGC 54599
      Anyone follow Nasa's 'Astronomy picture of the day" ?
      If you don't i thought i'd share todays image with you.
       
      What an amazing object, from the Amazing Hubble Space Telescope !
       
      It's known as Hoag's object or Hoag's galazy.
      Its very faint at Magnitude 16 and is located in the constellation of Serpens, and is a mere 600 million light years away.
      It doesn't have NGC classification and is listed as PGC (Principle galaxy catalogue) 54599
       
      If only i could see something like that from my own telescope ?!! 😀🔭
       

       
      • 4 replies
    • M45 - The Pleiades
      I bagged a bonus 4hrs last night to top up my data on M45 - The Pleiades. It's coming along nicely. Starting to see the surrounding dust. 7.5hrs total up to now. Pure RGB with my Redcat \ Canon 450d combo.
      • 4 replies
    • The Witches Broom in Narrowband
      Hi,
       Had major issue with the laptop dying last week. Thankfully a replacement motherboard sorted it, or I would have been stuffed for EMS5!.
       
       So, having played with SGPro at Kelling for the first time, including autofocus on filter changes, I was keen to try it out at home. This is a single evenings images. Only 8x10 minute exposures on each of the Sii, Ha, and Oiii filters, so noise could be a bit better. Still, very pleased to have got this in one evening..
       
       
      • 9 replies
    • Heart Neb in Hubble.
      This was taken last night through constant high cloud.
      Considering the conditions I am amazed it turned out like it did.
       
      600 second subs in HA, OIII and SII with a combined total time of 7 hours.
       
      Williams Optics GT 81 with 0.6 FR /FF.
      QSI 683 WSG.
      Captured and stacked in Maxim.
      Beaten into submission in PS 6.
       
      • 5 replies
  1. Information

    1. Information & Announcements

      Information & announcements from the East Midlands Stargazers.

      5,230
      posts
    2. EMS Official Events & Meetings

      Dates for your diaries!

      5,551
      posts
  2. Dark Site Member Area

    1. Dark Site Information

      Information, maps and directions to our dark sites.

      303
      posts
      • Daz Type-R
    2. Dark Site Events

      Events exclusively for our Dark Site Members.

      893
      posts
      • Daz Type-R
    3. Dark Site Meetings

      Fancy a bit of observing? Arrange adhoc meetings in here whenever there's a break in the clouds.

      486
      posts
      • Streetbob
  3. New Members

    1. Introductions

      Introduce yourself to our community!

      9,223
      posts
  4. General Discussion

    1. Beginner Area

      Do you want to know the difference between a refractor and a reflector? Not sure how to choose your first telescope? There's no such thing as a silly question... Ask away!

      5,847
      posts
    2. General Astronomy Discussion

      General astronomy related discussion.

      21,423
      posts
    3. Weather Discussion

      Could there be clear skies soon?

      1,222
      posts
    4. Martyn's Coffee Shop

      General off topic (non astro) discussion.

      22,324
      posts
    5. 3,100
      posts
  5. Observing

    1. Observing Discussion

      Hints, tips, techniques and general observing discussion.

      1,254
      posts
    2. Observing Reports

      Upcoming targets, things to look out for and star charts.

      2,489
      posts
    3. Observing with Binoculars (BINS)

      Observing with binoculars instead of a scope?

      750
      posts
  6. Imaging (Astrophotography)

    1. Imaging Discussion

      Hints, tips, techniques and general imaging discussion.

      3,988
      posts
    2. Imaging Software

      Software discussion, hints, tips and best practice.

      1,176
      posts
    3. Imaging Video

      Electronically assisted observing and imaging.

      150
      posts
    4. 29,521
      posts
  7. Astronomy Equipment

    1. Telescopes / Complete Setups

      For discussion of Optical Tube Assemblies (OTAs), mounts, accessories and complete setups.

      3,779
      posts
    2. Mounts

      In depth discussion of mounts and accessories.

      2,676
      posts
    3. Eyepieces

      In depth discussion of eyepieces, eyepiece kits, barlows, cleaning, etc.

      2,241
      posts
    4. Cameras

      For the discussion of cameras and other imaging accessories.

      975
      posts
    5. DIY & Self Mod

      For the discussion of DIY and self mod setups.

      5,721
      posts
    6. Member Equipment Gallery

      Show off your shiny kit.

      2,466
      posts
  • Member Statistics

    475
    Total Members
    232
    Most Online
    Paul A Brierley
    Newest Member
    Paul A Brierley
    Joined
  • Forum Statistics

    15,071
    Total Topics
    143,155
    Total Posts
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.