There was a great ISS pass Tuesday night -- we watched it from the Hollywood Bowl at
intermission of Star Wars: A New Hope, in concert with LA Phil orchestration, and the film
on the big screen. Folks at the "bowl" tonight will see the same show,
including A New Pass! Time: Fri Aug 10 8:26 PM, Visible: 4 min, Max Height: 82°, Appears:
36° above NW, Disappears: 13° above SE. To get your own email or text alerts of passes
over your location just sign up here https://spotthestation.nasa.gov/
Now about the Perseids. The rates have been increasing day by day, just as predicted. You
can see the last few years Perseids rates in my August what's Up video.
or at the other usual places.
The Perseids, in a nutshell are visible at rates over 20 per hour for a couple weeks. The
"peak" where the rates go up to 50-60 per hour (fewer seen from areas with light
pollution, smoke, or clouds) and more -- up to maybe 70 per hour -- from the very darkest
locations. Sunday night is the "peak" bur Friday, Saturday and Monday nights
should also be well above the 20 visible per hour last night. This great chart shows the
work of "citizen scientists" who go out and rigorously count meteors around the
world. Bookmark and check back if this interests you.
The citizen scientists use a standard set of tools: Eyes, comfy chair, pencil, clipboard,
tape recorder sometimes, timepiece that doesn't emit light to keep track of timed
observing intervals, some star charts to measure your own visual acuity and sky darkness
-- to see how many stars you can see in a triangle of fairly bright stars -- you might
only see the three bright anchor stars from the city, you may see 5 to 30 from a dark
site. With all these tools, even an observation from light polluted LA county (my
driveway) matters, and the fact that I may only see a few per hour, in miserable light
pollution, is calculated and part of the data. If this interests you, I'll be happy
to drag some of you out to Amboy crater or another dark location of my choosing to count
meteors and submit your data. It's geeky science fun!
Here are a few additional sites with Perseid info. NASA's ScienceCasts video:
Solar System Exploration's Ten Things: How to Photograph a Meteor Shower:
Jane's "Perseids from Amboy Crater" (sort of a tutorial to Citizen Science)
Oh, Sidewalk Astronomy Monrovia August 18th, weather and schedules permitting.
-- Jane Houston Jones @jhjones @otastro Jane's What's Up video episode #133:
August 2018 - Perseids! https://go.nasa.gov/2IjBkNh
New! FB Watch What’s Up video page
From Jane, sent from my Android device with K-9 Mail. Please excuse my brevity.