Planetary Defense Campaign: May 2022

Potentially Hazardous Asteroid 467460 (2006 JF42) flies by on May 9th! This Near-Earth Asteroid will be visible from the southern hemisphere up to the northern mid-latitudes between May 2nd and May 20th. Be wary of the full-moon disrupting observations between the 11th and 15th! Observing this asteroid can help us predict where it’ll be in the future.

Quick Facts:

  • The size of 467460 (2006JF42) is unknown but predicted to be around 500m. For reference, a 100m asteroid is big enough to survive a trip through Earth’s atmosphere and create a 1.5km crater on impact.
  • At its closest approach, 467460 (2006JF42) will pass within 15 lunar distances of Earth. Thankfully, that’s still pretty far away!
  • 467460 (2006JF42) is classified as a Potentially Hazardous Asteroid. While it isn’t going to impact us in the near future, it’s close enough to Earth that over a hundred or more years the orbit could evolve in such a way that it poses a threat.

Viewing 467460 (2006JF42):

Follow the HowTo Guide for B. The Planetary Defense target is not in the Unistellar app’s database

  • In the Recording field be sure the following information is entered:
  • Exposure time: 3971 ms
  • Gain: 25 dB
  • Duration: 40 minutes
  • At the end of acquisition, record a dark frame with the dust cap on
  • One observation is enough

View of the orbit of 467460 (2006JF42) as it passes by Earth. Video provided by Tony Dunn.

View of 467460 (2006JF42) from Earth as it flies by. Video provided by Tony Dunn.

7335 (1989JA) is predicted to fly by on May 27 14:26 UTC. This massive asteroid will be visible worldwide between May 5th and June 2nd! With your data we can better refine the orbit of this asteroid.

Quick Facts:

  • 7335 (1989JA) is about 1km in diameter. A real problem if it were to crash into Earth!
  • At its closest approach 7335 (1989JA) is expected to be only 10 lunar distances away.
  • Only ~7% of the moon will appear illuminated during the fly by. This means, weather permitting, conditions will be nearly perfect for observing!

Viewing 7335 (1989JA):

Follow the HowTo Guide for A. The Planetary Defense target is in the Unistellar app’s database

  • In the Recording field enter the following information:
  • Exposure time: 3971 ms
  • Gain: 25 dB
  • Duration: 25 minutes
  • At the end of acquisition, record a dark frame with the dust cap on
  • One observation is enough

View of the orbit of 7335 (1989JA) as it approaches Earth. Video provided by Tony Dunn.

View of 7335 (1989JA) from Earth as it flies by. Video provided by Tony Dunn.

In partnership with: