Secret Still Observatory

'Sing to the Moon and the stars will shine'

M10

Mark

1 minute read

    Integration time (running total):
    * L 14 X 60s (14m)
    * R 12 X 60s (12m)
    * G 12 X 60s (12m)
    * B 12 X 60s (12m)
    * Total: 50m

Notes

Messier 10 is a very low target from 52°N and one which I had never considered photographing. The poor visibility is made worse by the poor southern horizon here. However, the short integration time has produced a remarkably good image of this beautiful globular cluster, helped by the stable sky this evening. This was really an experiment to…

Globular Clusters

A visual comparison of five clusters in the Messier list

Mark

1 minute read

    Integration time (running total):
    * OSC Between 30 and 60 X 60s per image

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

Mark

1 minute read

    Integration time (running total):
    * OSC 75 X 120s (150m)
    * Total: 2h30m

Seeing index: Poor/average (1/2)
Jet stream: Poor (30 m/s)
Transparency: Average (3)

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