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Thread: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

  1. #1
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    Default The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018



    Hello all,

    this is a 2nd observing report on the tests of the Hensoldt f=15mm 70° AFOV eyepiece,
    following the report The End of a Great Long Summer

    The companion eyepieces to the Hensoldt have been the old discontinued Carl Zeiss E-Pl 10x/20 f=25mm, and the still new Leica HC Plan S 10x/22 f=25mm.
    All views, when not stated otherwise, have been through the H-Beta filter. The blinking has been against the Baader yellow 495nm longpass filter. The other filters mounted on the filter wheel have not found use in this part of the observing session.

    The inspiration to view this exotic SNR in the Cygnus X area comes from the amazing image by our J. T. Hommes in
    SNR G082.2+5.3, LBN 325 and a DWB Fest
    The Jim’s annotated imagee is here http://www.jthommes.com/Astro/images...p_anotated.jpg

    Now, the position of the suspected SNR G082.2+05.3 has been easily found SE and S off the 30Cyg 31Cyg pair,
    but at the very first moment when looking through the eyepieces – just nothing.
    So, I have rolled my eyes in and out averted vision, moved the scope around, and made a swap between the right eye and the left eye with the other eye always closed, you know all these tricks to pull down a faint fuzzy.

    The first object in this SNR, which has emerged through each of the f=25mm eyepieces, has been the Dickel – Wendker – Bieritz DWB 165, hanging on a fairly bright star at the bottom of a 3 stars group. Knowing where to look at, this nebula has been immediately confirmed through the Hensoldt.

    The next faint glow found has been the DWB 170,
    maybe thanks to the Barnard’s dark nebula B345, separating the DWB 170 from the DWB 165.
    The DWB 170 has been best seen with the averted vision, difficult to keep with the direct vision through the all 3 eyepieces.

    And now the problem arising has been to separate the filaments shooting off the DWB 165, as they have made a faint glowing broader band.

    A short break with a walk in the backyard to oxygenate the brain and the eyes, helps always, I told me, and have done it.
    At this moment, the clarity of the skies has improved, and so my seeing in dark, I believe.


    As the Carl Zeiss E-Pl did not want to split the band, I have concentrated my efforts with the Leica HC Plan S, which is known as one of the eyepieces offering the highest contrast views at f=25mm.
    Moving across the band of faint glow, I have noticed the separation into two filaments:
    First with averted vision, and finally with the direct vision. These have been the DWB 148, and the fainter DWB 145 to the west. These both filaments have been also confirmed through the Hensoldt.

    The last object seen in this area with direct vision through the all 3 eyepieces has been the long thin band of DWB 129. The identification was according to IDSA, p. 17, approximate coordinates 20h15m +45°.

    The Propeller Nebula Simeis 57 is the most famous Simeis object in the Cygnus X region,
    split into the individual DWB 111, 118, 119 nebulae (blades), see the annotated image in Distant Lights - Simeis 57

    The Simeis 57 has revealed a well detached nearly uniform faint glow through the all 3 eyepieces.
    The individual blades of the Propeller have not been separated.
    The only structure seen through the more magnifying Hensoldt, has been a dark insert expected to separate 2 blades of the Propeller.
    Dissecting the Propeller Nebula will require higher magnifications, my guess.

    This has been my second observation of the Propeller Nebula.
    In October 2013, I have seen this nebula with averted vision through the 25x100 FB binoculars with the blue(RGB)CCD filter mounted on one eyepiece, and the H-Beta filter on the other.


    Date and time: 30th September 2018, 21:20 – 22:45 local summer time
    Place: Backyard
    Observing conditions: NELM 5, observed objects close to zenith
    Telescope: 6” F/5 Synta (Sky-Watcher) achro refractor
    Eyepieces: Antares W70 f=25mm for star hopping
    Hensoldt (from Bundeswehr surplus sales) f=15mm, 70° AFOV,
    Carl Zeiss E-Pl 10x/20 f=25mm, Leica HC Plan S 10x/22 f=25mm
    Filters: Astronomik H-Beta, Astronomik UHC, Baader yellow 495nm long pass for blinking

    Thank you for reading,

    JG
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Impressive observations, JG! Nicely done, sir!

    I have not targeted these nebulae and need to add them to my "JG Challenge List" I keep in Sky Safari.
    j.gardavsky and Don Quixote like this.
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Quote Originally Posted by bladekeeper View Post
    Impressive observations, JG! Nicely done, sir!

    I have not targeted these nebulae and need to add them to my "JG Challenge List" I keep in Sky Safari.
    Hello Bryan,

    still not sure if I deserve a JG Challenge List in you Sky Safari.
    Feeling truly honoured, and thank you my friend,

    JG
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Thank you again JG for this excellent survey of these EP and their effectiveness.
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Hello JG.,
    Very impressive!
    You really gave a nice lesson in high-end observational skills.
    Dim objects with a somewhat larger surface need more a skilled observer than a big light bucket. Glad to have you here with us as a representant of those skills.
    Perfect way to say goodbye to the Summer!
    Thanks very much!
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Wonderful evening JG!

    Your skills at pulling out the faint nebulae and SNRs are unsurpassed.

    Congratulations.
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Hello Mark, John, and Michael,

    as always, the first time on a faint nebula is pretty tough, and time consuming.
    The next observing session, should the rain stop before Halloween, will be on trivially easy DSOs, I promise.

    Clear skies, and much fun at your scopes,

    JG
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Nice dissection of changeling SNR target JG! In addition to tricks you have described, tapping on EP to produce high frequency but short amplitude shaking sometimes helps for faint fuzzes.
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Quote Originally Posted by Bigzmey View Post
    Nice dissection of changeling SNR target JG! In addition to tricks you have described, tapping on EP to produce high frequency but short amplitude shaking sometimes helps for faint fuzzes.
    Hello Andrey,

    you are right, that's how Bryan shakes down the faint galaxies.

    On a side line,
    I can remember one binocular tour with the hand held 25x100 from Canes Venatici through Coma Berenices into Virgo,
    and my hands have been shaking down one galaxy after the next one.
    That's why I am using a tripod for my binoculars very seldom.

    Thank you for your comments,

    JG
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    Default Re: The SNR G082.2+05.3, and the Simeis 57 visually on the 30th September, 2018

    Great catches Jg! Above my roof, darn... And Simeis 57... ss5p just does not find it...
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