Secret Still Observatory

'Star, star teach me how to shine, shine'

Mark

1 minute read

    Integration time (running total):
    * L 70 X 180s (210m)
    * R 60 X 180s (270m)
    * G 64 X 180s (192m)
    * B 65 X 180s (195m)
    * HA 68 X 300s (340m)
    * Total: 18h37m

Notes

Imaged over the course of three nights where the seeing was the best for several months. M81 was high in the sky thus avoiding (though no totally) the negative effect of the ever-worsening light pollution. I included a lot of time on the Hydrogen Alpha channel to enhance the star-forming regions in the spiral…

Mark

1 minute read

    Integration time (running total):
    * L 70 X 60s (70m)
    * R 60 X 60s (60m)
    * G 64 X 60s (64m)
    * B 65 X 60s (65m)
    * L 70 X 10s (11m40s)
    * R 60 X 10s (10m)
    * G 64 X 10s (10m40s)
    * B 65 X 10s (10m50s)
    * HA 10 X 180s (30m)
    * Total: 5h32m

Notes

Orion will soon be gone from the sky for another season. I wanted to have a new attempt to produce a satisfactory photogrpah of the bright star-forming region around the Trapezium in the Great Orion nebula which is so…

Mark

1 minute read

    Integration time (running total):
    * OSC 85 X 120s (170m)
    * Total: 2h50m
    
    Integration time target
    * Target: 7 hours
    * Progress: 40%

Seeing index: Good (3)
Jet stream: Poor (30 m/s)
Transparency: Good (3)

Mark

1 minute read

    Integration time (running total):
    * S 57 X 300s (285m)
    * H 54 X 300s (270m)
    * 0 51 X 300s (255m)
    * Total: 13h30m

Notes

Imaged over the course of three nights and processed using the Hubble palette.

Mark

1 minute read

    Integration time (running total):
    * S 54 X 300s (270m)
    * H 53 X 300s (265m)
    * 0 51 X 300s (255m)
    * Total: 13h10m

Seeing index: OK (3)
Jet stream: Poor (40 m/s)
Transparency: Good (4)

Mark

1 minute read

    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)

Mark

1 minute read

    Integration time (running total):
    * S 42 X 300s (210m)
    * H 41 X 300s (205m)
    * 0 40 X 300s (200m)
    * Total: 10h15m

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

B174

Barnard 174 is an impressive dark nebula in Cepheus

Mark

2 minute read

    Integration time (running total):
    * IR_PASS 12 X 180s (36m)
    * L 19 X 180s (57m)
    * R 38 X 180s (114m)
    * G 32 X 180s (96m)
    * B 28 X 180s (84m)
    * Total: 6h45m

    Integration time target
    * Target: 10 hours
    * L/IR_PASS 100 X 180s (150m)
    * R 100 X 180s (150m)
    * G 100 X 180s (150m)
    * B 100 X 180s (150m)
    * Progress: 65%

17th October 2024

Seeing index: Good (4)
Jet stream: Good (9 m/s)
Transparency: Ave (3)

Mark

2 minute read

    Integration time (running total):
    * L 81 X 180s (252m)
    * R 73 X 180s (219m)
    * G 75 X 180s (225m)
    * B 72 X 180s (216m)
    * Ha 73 X 300s (365m)
    * Total: 21h17m

    Integration time target
    * Target: 28 hours
    * L 100 X 180s (300m)
    * R 100 X 180s (300m)
    * G 100 X 180s (300m)
    * B 100 X 180s (300m)
    * Ha 100 X 300 (500m)
    * Progress: 76%

7th January 2025

Integration time:
    * L 15 X 180s (45m)
    * R 13 X 180s (39m)
    * B 12 X 180s (36m)
    * G…
Mark

1 minute read

    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)

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