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casati

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Posts posted by casati

  1. Go for the StarDiscovery 150p Newton WiFi and add a SV305 (CMOS IMX290) astrocamera. And enter the realm of EAA first before you you go into full-fledged astrophotography.
    The mount is able for up to 15 seconds unguided exposures. That's a lot compared with Stellina or eVscope which cost 4.000 EUR but offer mostly shorter exposures and less aperture.

    https://agenaastro.com/articles/guides/miscellaneous/agena-beginners-guide-to-choosing-equipment-for-deep-sky-eaa.html

    Also a good read is "Astrophotography on the Go" for getting a feeling what could be achieved.
    https://www.amazon.com/Astrophotography-Go-Exposures-Practical-Astronomy/dp/3319098306

    Best,
    Peter

  2. There seems to be a solution for an otherwise potentially uncompleted alignment, when a 2nd alignment star couldn't be located during 2-star alignment - using a second app eg. SkySafari for alignment.

    According to an answer of Skywatcher Support to a question of another German user the "Align with Sync" could be used for this purpose:

    Quote

    The app can accept Sync command from 3rd Party Software. Depending on whether the Align with Sync page is open when Sync command received, the Sync data is used in one of two ways:
    If the page is not open, Sync is used to improve accuracy in a small region around the sync target. If the page is open, Sync is used to perform the alignment.

    http://www.astrotreff.de/topic.asp?TOPIC_ID=247020

    Best,
    Peter

  3. After you've moved you scope to the Home positiom, you certainly SHOULD switch off your powerbox where the handcontrole is connected to. Then switch on afterwards and do a one-star alignment first. Center sthe star in your eyepiece and acknowledge. Then go to Hibernation -> Home Position. Switch powerbox off and on again. Start alignment as normal.

    Best,

    Peter

  4. Always a moment of despair when you try to do at least a two-star alignment from locations with limited sky view eg. from a balcony, out of a window etc.

    It would certainly help if you know the content of the 2. alignment star list once you decide on the 1. alignment star - even more if you plan for a 3-star alignment.

    Especially if you need at least a 2-star alignment to do a polar alignment with SynScan afterwards, because you have no sight to Polaris as well.

    Why a cross-reference? The 2-star list depends on the first star choosen.

    Has somebody already investigated this issue? Does a cross-reference exist?

    TIA & Best,

    Peter

    • Like 1
  5. Conc. the earlier Bresser AR102xs discussion: Why not use the Bresser Polaris, which does come with an although outdated but adequate mount for grab 'n go with manual tracking? According to Bresser the same Lenses are used as in the AR102xs. And the focusser is even better.

    I'm using it stationary on a StarDiscovery mount for EAA with a SVBONY SV305.

    Best
    Peter

     

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