Session Data Date: 07/1/2024 Time: 19:29 – 00:05 UT Seeing: III: OK – Moderate Transparency: III. Clear with slight haze Temp: 0.6 C, Air Pressure: 1031mb, Humidity: 81%, Dew Point: -2.2C, Wind Speed: 6mph Average FWHM: 4.68 Average SQM: 20.16 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: First image of the night and something appears to be off. the stars are really oval…
Astronomy Overview of 2023
The most exciting thing this year has been the discovery of EAA ( Electronic Assisted Astronomy). For me, it feels just like doing astronomy when looking through an eyepiece. I get the same experience that you get after you have been staring at the object for a priod of time. When you start, everything is faint and ill defined. but as the stack grows, more and more is revealed. I find that you don’t…
….and another New Toy
Well this Fuji GW670III is not exactly new, as I acquired it in November of 2022, but it’s been a while since I updated the toy section. You may have noticed the last two cameras added to my collection were rangefinders. While this technology has been around since the 1930’s, they fell out of favour in the 1970’s when SLR’s became all the rage. The Mk3 version of this lineup of huge neg rangefinders…
EAA Observing Session: 1, December
Session Data Date: 01/12/2023 Time: 20:37 – 01:43 UT Seeing: I: Excellent Transparency: Extremely clear Temp: -0.1C, Air Pressure: 1013mb, Humidity: 78%, Dew Point: -3.3C, Wind Speed: 5mph Average FWHM: 3.15 Average SQM: 19.31 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 183MM Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: The first clear night for ages. No wind, no clouds and at the start of the session, no Moon. Still working through…
EAA Observing Session: 8 October
Session Data Date: 8/09/2023 Time: 19:21 – 22:02 UT Seeing: II. Good – Slight Transparency: II. Clear with some cloud Temp: 14.3C, Air Pressure: 1025mb, Humidity: 90%, Dew Point: 12.8C, Wind Speed: 4mph Average FWHM: 3.9 SQM:19.8 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 294MC Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: This was one of those sessions that started off really well weather wise, but didn’t last long as high…
EAA Observing Session: 7 October
Session Data Date: 7/09/2023 Time: 19:44 – 00:16 UT Seeing: II. Good – Slight Transparency: I. Extremely Clear. Temp: 14.9C, Air Pressure: 1027mb, Humidity: 77%, Dew Point: 11.1C, Wind Speed: 3mph Average FWHM: 4.2 SQM:19.8 magn/arcsec^2 Scope: Altair 250mm RC f/5.3 Camera: ZWO ASI 294MC Pro, No Filter. Dark subtracted and Flat fielded. Session Notes: While I like the simplicity of imaging in mono, I wanted to see if using a OSC camera would enhance…