Astronomical Activity and Dark Sky Awareness – the Case of the Hidden Lion

Tonight and for the next few nights, you can participate in a survey of your night sky and increase awareness of dark skies (and the converse of light pollution). While we are sheltering at home, we have vastly reduced the amount of air pollution, but have we given thought to the loss of our dark skies while we hunker down, sheltering at home? No? Well, here’s your chance to pitch in and save our night skies!


The Case of the Hidden Lion

Can you find the constellation Leo (for Northern latitudes)? For the next week, take a few minutes out of your late evening and follow these simple instructions to locate the missing lion in your night sky.

Five Easy Star Hunting Steps

  1. Use the Globe at Night website to help find your constellation in the night sky.
  2. Use the Globe at Night website to find the latitude and longitude of the location where you are making your observation.
  3. Go outside more than an hour after sunset (8-10 pm local time). The Moon should not be up. Let your eyes become used to the dark for 10 minutes before your first observation.
  4. Match your observation to one of 7 magnitude charts and note the amount of cloud cover.
  5. Report the date, time, location (latitude/longitude), the chart you chose, and the amount of cloud cover at the time of observation. Make more observations from other locations, if possible. Compare your observation to thousands around the world!:
April 2020 Campaign – Find Leo After Sunset all this week!

I’ll be making my observations either tomorrow or Friday evening around 10 o’clock Central time. I’m just one degree shy of forty degrees north latitude. We’re in the last quarter of the moon, with the new moon occurring on the 23rd so this is the best opportunity to find that missing lion!

Times for Sunset and Moonrise for Kansas City, KS:

April 16, 2020
Moonrise: 3:55am
Twi A: 5:05am
Twi N: 5:40am
Twi: 6:13am
Sunrise: 6:41am
Solar noon: 1:19pm
Moonset: 1:59pm
Sunset: 7:57pm
Twi: 8:25pm
Twi N: 8:58pm
Twi A: 9:32pm
Day len: 13h 16′
April 17, 2020
Moonrise: 4:29am
Twi A: 5:03am
Twi N: 5:38am
Twi: 6:11am
Sunrise: 6:39am
Solar noon: 1:18pm
Moonset: 2:59pm
Sunset: 7:58pm
Twi: 8:26pm
Twi N: 8:59pm
Twi A: 9:34pm
Day len: 13h 19′