Tag: bortle class

• How Dark (or not) my Sky is Really

  Today, we are going to talk about light pollution and dark skies, our view of the sky and my view of the sky in particular. We’re going to start with a little bit of a correction. I generally discuss the night sky as if it was around Bortle Class 5, that’s the level of light…

  Caoimhín de Bhailís

  May 7, 2026

  Astronomy, Astronomy Video

  Astronomy, bortle class, bortle system, changing skies, dark skies, dark skies ireland, light levels, light pollution, rural skies, science, space, stargazing, stars, urban skies, video

• A Look Ahead to the Month of February / The February Night Sky

  Today we are going to be looking ahead to the night sky for the coming month of February. There are a couple of interesting things happening in February, the greatest elongation of Mercury on the 19th and an annular solar eclipse on the 12th in particular. However, because the annular solar eclipse is mostly going…

  Caoimhín de Bhailís

  January 27, 2026

  Astronomy, Astronomy Video

  2026, Astronomy, bortle class, constellations, February, light pollution, moon, naked eye, planets, science, space, stargazing, stars, video