Secret Still Observatory

'Sometimes the night's sky weeps, with the stars as its tears' - John Trudell

Cave Nebula SH2-155

Mark

4 minute read

    Integration time:
    * SII 75 x 300s (375m)
    * Ha 86 x 300s (430m)
    * OIII 53 x 300s (265m)
    * Total: 1070m/17h50m

    Integration time target
    * Target: 20 hours
    * Progress: 89%

Notes

28th April 2023 I recently acquired a more capable processing PC which has opened the door to re-processing of lots of old data which was languishing untouched due to the unreasonable length of time required for the old PC to run Pixinsight. Nine months after the initial acquisition, the…

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