Integration time (running total):
    * L 18 X 180s (54m)
    * R 15 X 180s (45m)
    * G 17 X 180s (51m)
    * B 18 X 180s (54m)
    * HA 15 X 180s (45m)
    * Total: 4h09m

Notes

Continuing what has been an incredible galaxy season weather-wise with another version of a large galaxy. Again I decided to reimage this in monochrome with additional weighting for the Hydrogen Alpha channel to highlight the star-forming regions.

    Integration time (running total):
    * L 18 X 180s (54m)
    * R 15 X 180s (45m)
    * G 17 X 180s (51m)
    * B 18 X 180s (54m)
    * HA 15 X 180s (45m)
    * Total: 4h09m

Notes

This beautiful face-on spiral galaxy is situated approximately 54m light-years from our Milky Way in Coma Berenices on the outer edge of the Virgo cluster of galaxies. Also visible are NGC4312 (bottom left) and NGC4322 and NGC4328 (above and to the right).

    Integration time (running total):
    * L 18 X 180s (54m)
    * R 15 X 180s (45m)
    * G 17 X 180s (51m)
    * B 18 X 180s (54m)
    * HA 15 X 180s (45m)
    * Total: 4h09m

Notes

Possibly the most beautiful galaxy visible in the Northern hemisphere. I decided to reimage this in monochrome with additional weighting for the Hydrogen Alpha channel to highlight the star-forming regions.

    Integration time (running total):
    * L 18 X 180s (54m)
    * R 15 X 180s (45m)
    * G 15 X 180s (45m)
    * B 17 X 180s (51m)
    * HA 15 X 300s (75m)
    * Total: 4h30m

Notes

Spring is the optimum time to observe this beautiful edge-on spiral galaxy. It is situated approximately 40m light-years from our Milky Way and measures 100,000 light-years from end to end. This evening the sky was remarkably transparent and stable which gave good guiding and generally excellent image quality. It…

    Integration time (running total):
    * L 20 X 120s (40m)
    * R 18 X 120 (36m)
    * G 18 X 120 (36m)
    * B 16 X 120 (32m)
    * Total: 2h24m

     Integration time target
    * Target: 10 hours
    * L 75 X 120s (150m)
    * R 75 X 120s (150m)
    * G 75 X 120s (150m)
    * B 75 X 120s (150m)
    * Progress: 22%

3rd January 2025

Seeing index: OK (4)
Jet stream: Poor (40 m/s)
Transparency: Good (4)

    Integration time (running total):
    * L 26 X 180s (78m)
    * R 27 X 180s (81m)
    * G 25 X 180s (75m)
    * B 24 X 180s (72m)
    * Total: 5h02m
    
    Integration time target
    * Target: 6 hours
    * Progress: 85%

Seeing index: Poor/OK (2/3)
Jet stream: Ave (12 m/s)
Transparency: Good (4)

    Integration time (running total):
    * OSC 63 X 120s (126m)
    * Total: 2h06m

Seeing index: OK (3)
Jet stream: Good (7 m/s)
Transparency: Average (3)

    Integration time (running total):
    * OSC 130 X 180s (390m)
    * Total: 6h30m
    
    Integration time target
    * Target: 6 hours
    * Progress: 100%

Thursday 18th January

    Integration time (running total):
    * OSC 10 X 300s (50m)
    * Total: 50m
    
    Integration time target
    * Target: 3 hours
    * Progress: 28%

An unexpected clear couple of hours gave me the chance to check the recalibration of backlash on the EQ6R Pro which now seems to work nicely having guided at around 0.7"/px consistently last night. By way of as test I shot some 5 minute frames on M64 followed by some flats and flat darks in accordance with my new calibration frames…

Gathered a few short hours of HA data for a future project. Full moon tonight made broadband imaging difficult.