16 inch telescope will proceed PTC tonite (13 May 2013)
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- 夸克星
- 文章: 3847
- 註冊時間: 週四 09 10月, 2003 21:06
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- 夸克星
- 文章: 3847
- 註冊時間: 週四 09 10月, 2003 21:06
- lawrencemok
- 白矮星
- 文章: 741
- 註冊時間: 週一 25 7月, 2011 18:01
lol.....there were some openings on HK island though.
see this for comparison
http://www.lcsd.gov.hk/ce/Museum/Space/ ... eather.php
see this for comparison
http://www.lcsd.gov.hk/ce/Museum/Space/ ... eather.php
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- 夸克星
- 文章: 3847
- 註冊時間: 週四 09 10月, 2003 21:06
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
Very often I would check the Cloud Sensor readings at Sai Kung.
If the sky temperature is lower than -5C, the sky would be clear without clouds. Even if there are clouds, the clouds would be quite thin.
For good chance of starry night sky, the sky temperature should be at least 0C or lower and the temperature should be cooling down, while the Clould Graph should show a right hand side
rising curve.
If the sky temperature is higher than 10C, there is no hope of any clear sky during that moment in time.
Raymond Tse
If the sky temperature is lower than -5C, the sky would be clear without clouds. Even if there are clouds, the clouds would be quite thin.
For good chance of starry night sky, the sky temperature should be at least 0C or lower and the temperature should be cooling down, while the Clould Graph should show a right hand side
rising curve.
If the sky temperature is higher than 10C, there is no hope of any clear sky during that moment in time.
Raymond Tse
- 附加檔案
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- 20130516am AAG Cloud Sensor.JPG (72.31 KiB) 已瀏覽 3956 次
Dear Raymond,HK.Raymond.Tse 寫:Very often I would check the Cloud Sensor readings at Sai Kung.
If the sky temperature is lower than -5C, the sky would be clear without clouds. Even if there are clouds, the clouds would be quite thin.
For good chance of starry night sky, the sky temperature should be at least 0C or lower and the temperature should be cooling down, while the Clould Graph should show a right hand side
rising curve.
If the sky temperature is higher than 10C, there is no hope of any clear sky during that moment in time.
Raymond Tse
Could you share you weather station information for us (such as a link)?
Regards,
Tang
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
My observatory is just 5 km NNW of Pak Tam Chung and thus the cloud coverage is roughly the same.
I do not mind sharing the weather info but I have no knowledge of web server broadcast.
Perhaps some web experts may volunteer to set this up.
The all sky camera with sense up feature is being fine tuned to enable remote dew heater and remote focusing. When this project is completed then B/W sky image of night sky can also be viewed.
Raymond
I do not mind sharing the weather info but I have no knowledge of web server broadcast.
Perhaps some web experts may volunteer to set this up.
The all sky camera with sense up feature is being fine tuned to enable remote dew heater and remote focusing. When this project is completed then B/W sky image of night sky can also be viewed.
Raymond
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