Session Data Date: 17/09/2023 Time: 21:31 – 22:31 UT Seeing: II. Good – Slight Transparency: II. Clear with some cloud Temp: 14.3C, Air Pressure: 1005mb, Humidity: 95%, Dew Point: 13.3C, Wind Speed: 9mph SQM:20.01 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: Is this the shortest – but eventually a successful and satisfying – observing session ever. Open up observatory at 21:31UT. Take…
EAA Observing Session: 13 September
Session Data Date: 13/09/2023 Time: 19:46 – 00:34 UT Seeing: II. Good – Slight Transparency: II. Clear with some cloud Temp: 12.9C, Air Pressure: 1024mb, Humidity: 86%, Dew Point: 10.6C, Wind Speed: 1mph SQM:20.05 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: Second night in a row for some more EAA on SJM ‘Hidden Treasures’ Conditions have been OK this evening. No cloud…
EAA Observing Session: 12 September
Session Data Date: 12/09/2023 Time: 19:45 – 23:58 UT Seeing: II. Good – Slight Transparency: II. Clear with some cloud Temp: 12.6C, Air Pressure: 1021mb, Humidity: 86%, Dew Point: 10C, Wind Speed: 7mph SQM: 20.22 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: Doing a little EAA and going through Steve O’Meara’s ‘Hidden Treasures’ book. It is a little windy but the wind…
EAA Observing Session: 5 September
Session Data Date: 05/09/2023 Time: 21:18 – 03:07 UT Seeing: II. Good – Slight Transparency: III. Clear with slight haze Temp: 17.1C, Air Pressure: 1019mb, Humidity: 94%, Dew Point: 16.1C, Wind Speed: 5mph SQM: 18.77 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: Started this session with the scope in f/8 mode in the hope of doing some EAA while I wait for…
EAA Observing Session: 3, September
Session Data Date: 03-09-2020 Time: 19:50 – 23:42 UT Seeing: II. Good – Slight Transparency: III. Clear with slight haze. Temp: 18.1 C, Air Pressure: 1025mb Humidity: 91% Dew Point: 16.7C Wind Speed: 10mph Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM , Subtracted Darks but no Flats. NGC6254 Being Observed as NGC6254 This globular really looks asymmetric. Th central core appears to be offset slightly towards the SE. The transition between it…
EAA Observing Session 2, September
Session Data Date: 02/09/2023 Time: 21:20 – 01:53 UT Seeing: II. Good – Slight Transparency: III. Clear with slight haze Temp: 14.9C, Air Pressure: 1026mb, Humidity: 94%, Dew Point: 13.9C, Wind Speed: 1mph SQM: 18.77 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, Baader 35nm Ha, Dark subtracted and Flat fielded. Session Notes: Trying for a night of purely EAA. I realised after the first observation that I had left in the…