Integration time (running total):
    * OSC 5 X 300s (30m)
    * Total: 0h30m
    

Between the clouds the other day I squeezed in 30 minutes of exposure time on the border between Cassiopeia and Cepheus, a region full of interesting objects. The view in the photo is wide field - 6.6 x 4.8 degrees. Due to the short exposure the H alpha clouds are mainly colourless (e.g. the Lobster Claw Nebula) and the resolution is somewhat poor but I thought it quite an interesting exercise to point the…

Integration time: Main image: Lucky imaging: best 50% frames from 4000 video frames.
Image below: Lucky imaging: best 50% frames from 1000 video frames.

    Integration time (running total):
    * OSC 365 X 60s (365m)
    * Total: 6h05m
    
    Integration time target
    * Target: 6 hours
    * Progress: 100%

Notes

Seeing index: Excellent 5/4
Jet stream: Poor (32m/s) Moon phase: 80%
Transparency: Poor

Almost defeated by the dire Autumn weather. On the night of 9th a brief 45 minute spell with gaps to the heavens gave poor views of M31 but surprisingly good ones of M57 (x150). The following morning dawned clear (again briefly, after another night of thick cloud) to the beautiful sight of the crescent Moon with earthshine, Venus and between the two the still-visible star Regulus in Leo.

This morning gave a really excellent view of Jupiter in the Dobsonian. The sky was lightening constantly as I watched and the reduction in contrast against the sky I believe enhanced considerably the view and removed any diffraction spiking that might have intruded. Venus as a semi-crecent and Sirius were also prominent.

    Integration time (running total):
    * OSC 88 X 300s (440m)
    * Total: 7h20m

    Integration time target
    * Target: 7 hours
    * Progress: 100%

Notes

Mon 4th September

Lucky imaging: best 75% frames from 1000 video frames.

    Integration time (running total):
    * OSC 95 X 300s (475m)
    * Total: 7h55m
    
    Integration time target
    * Target: 12 hours
    * Progress: 66%

Notes

22nd August 2023

Lucky imaging: best 75% frames from 500 video frames. Mosaic of two images, North and South.

    Integration time (running total):
    * OSC 129 X 300s (645m)
    * Total: 10h45m
    
    Integration time target
    * Target: 12 hours
    * Progress: 90%

Notes

8th August 2023

A sketch made from an image taken on 28th April 2023 when the Moon was eight days old. The last few weeks have been so cloudy and the Moon so low as to make direct observation impossible.