Celestial hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  HD108137  ·  HD108348  ·  HD108614  ·  HD108915  ·  IC 3303  ·  IC 3305  ·  IC 3311  ·  IC 3344  ·  IC 3349  ·  IC 3355  ·  IC 3363  ·  IC 3382  ·  IC 3388  ·  IC 3393  ·  IC 3432  ·  IC 3443  ·  IC 794  ·  M 84  ·  M 86  ·  M 87  ·  NGC 4374  ·  NGC 4387  ·  NGC 4388  ·  NGC 4402  ·  NGC 4406  ·  NGC 4407  ·  NGC 4413  ·  NGC 4425  ·  NGC 4431  ·  NGC 4435  ·  And 18 more.
Getting plate-solving status, please wait...
Markarian Chain, Dan Miller
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Markarian Chain

Getting plate-solving status, please wait...
Markarian Chain, Dan Miller
Powered byPixInsight

Markarian Chain

Equipment

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Acquisition details

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Description

Equipment:
    Image Camera:        Modified Canon T3i         
    Image Lens:            Sigma 150-600mm Lens
    Session Computer:    Lenova Think pad for session control
    Guide Camnera:        ZWO ASI120MM-S 1.2 MP CMOS
    Guide Scope:        ZWO 30mm f/4 Mini
    Mount:                Advanced GT
    Image Computer:        Lenova Thinkpad - Windows 10 pro

Software:
    N.I.N.A. using Advanced Sequence, TPPA, and Hocus Focus
    PHD2 for guiding
    ASTAP for plate solving
    ASCOM Drivers

Image Sessions:
    2023/04/12 
        Notes on session:    Windows update on session computer when starting whcih extended polar alignment.  It messed with NINA..
                            After imaging started, the mount quit responding.  Did factory reset on hand set, still would not slew.
                            Found out the dec cord was not connected.
                            PHD2 encountered a ASCOM driver error. Stopped sequence, shut down and relaunched PHD2 and calibrated.
                            Guiding started again withhout errors.
        Moon:                Waning Gibbous 53.6%, rose at 2.16am
        Seeing:                Clear skies had it as clear, but they also had a warning about smoke.
                            Looking at the HFR, it looks pretty good in the beginning.
        Focus:                Good
        Polar Alignment:    Slightly over 4 minutes
        Guiding:            Good 
        Dither:                Every 5
        Meridian Flip:        Watched it occur.
                            Issued a command for the flip, moved a little.  Plate solved, then did actual flip.  Also, after
                            the flip it did not properly center on target.  Dec was roughly 3 degrees off. 
        Exposure           180s
        Focal Length:        508
        Lighths:            182
        Bias:                50
        Dark:                50        Camera Temp - 27C
        Flats:                100        Taken using camera at AV setting

Comments

Sky plot

Sky plot

Histogram

Markarian Chain, Dan Miller