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Thread: Sun first day of spring Lunt LS50

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    Default Sun first day of spring Lunt LS50



    Lunt LS50 double stack ZWO ASI120mm-S

    I found the ASI120 can be used with a tilter and the new feathertouch foucuser, but the ASI174 doesn't have enough infocus, comes close but it cannot be used at least the the daystar tilter, however i don't see any NR with the 174 only the 120

    10_54_18_g4_ap34 reg6 pscc-1.jpg
    Bortle 8 sky, Lunt LS80 B1800, LS50DS B600, Lunt Herschel Wedge, Quark Chromosphere, Celestrons: Omni XLT 120, XLT AZ 102, , 4.5" Dob,
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    Default Re: Sun first day of spring Lunt LS50

    There's a lot of activity on that west limb, but the cloud god got me again today.

    If that 120 won't do a full image, just take three or four "angles" and put 'em together as a mosaic. Works like a charm.
    John (Urban Astronomer) Backyard: Bortle 8 (-) Apertura AD10 Dob; ES AR152 on Twilight II; XLT 150 Dob; XLT 120EQ; Lunt Solar 60 PT/B1200; ES AR102; 90mm Eq; SW 90mm Virtuso Mak; 2 Orion ST-80's (one used as finder for AR152)

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    Default Re: Sun first day of spring Lunt LS50

    I use the 120 for "close-ups" for full disk I use the ASI174mm For some reason, may have been a cloud, the center of the disk is soft.

    click image for larger size


    11_04_56_g4_ap29 ps cmbined full cropped-1.jpg
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    Bortle 8 sky, Lunt LS80 B1800, LS50DS B600, Lunt Herschel Wedge, Quark Chromosphere, Celestrons: Omni XLT 120, XLT AZ 102, , 4.5" Dob,
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    Default Re: Sun first day of spring Lunt LS50

    Remember Jeff, you are imaging a sphere NOT a flat disc. The center of the sun is a hell of a lot closer to you than the limb.
    ,Lunt80,BF1200. Lunt Herschel solar wedge, DMK21. SkyWatcher Evostar 80mm with Moonlite focusser DMK51.
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    Default Re: Sun first day of spring Lunt LS50

    Keith
    Ah ha, yup I keep forgetting that, I often tend to focus on the limb as it is easier to see the contrast. I think it is more acceptable to have the center sharp and the limb soft...

    Well if every shot we made was perfect why would we do it and where would the challenge be? I still think Solar is easier than deep sky, if only because I am awake during the day and it tends to be warmer!
    Bortle 8 sky, Lunt LS80 B1800, LS50DS B600, Lunt Herschel Wedge, Quark Chromosphere, Celestrons: Omni XLT 120, XLT AZ 102, , 4.5" Dob,
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    Default Re: Sun first day of spring Lunt LS50

    The only time I focus on the limb is for a close-up of a Prom. I try to find something more central to focus on ( not easy when there are no sun spots or filaments ).
    ,Lunt80,BF1200. Lunt Herschel solar wedge, DMK21. SkyWatcher Evostar 80mm with Moonlite focusser DMK51.
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