Time Lapse of Asteroid 2014 JO25

April 20th, 2017 by Roy W. Spencer, Ph. D.

Despite some clouds, I was able to capture time lapse video of Asteroid 2014 JO25 passing by last night. Nearly 2 hours of time exposure photos are compressed into 23 seconds, from 9:20 p.m. until 11:09 p.m. CDT (watch full-screen, and make sure the highest definition is enabled, 1080p):

The asteroid is traveling from near the left side toward the right. The clearest view, unobstructed by clouds, is near the end of the video.

The dumbbell-shaped asteroid was measured a few days ago by radar to be about 1 mile long, and was about 1 .5 million miles away from Earth at the time of the video.

Taken with a Canon 6D, Canon 200 mm f/2.8 lens at f/4.0, ISO2500, over 500 individual 10 sec exposures taken every 12 seconds, mounted on an Astrotrac star tracker, which in turn is on a Manfrotto geared head on a tripod.

47 Responses to “Time Lapse of Asteroid 2014 JO25”

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  1. Norman says:

    Dr. Spencer

    That was great time lapse! Thanks.

  2. jimc says:

    1.5 mega miles (6 times as far as to the moon) isn’t even close. I enjoyed the guitar challenge the second time around better.

  3. Gordon Robertson says:

    Roy…you didn’t spot any black holes or remnants of the Big Bang, did you?

    Oh, sorry, you’d need a radiotelescope for that.

  4. ossqss says:

    2014 discovery means? Not like we landed probes on it to change anything like long term trajectory yet. Did we ever do that? Oh wait………

    Reminds me of a song 😉


    • ossqss says:

      For the record. Would this be considered an Anthropogenic forcing?

      “On 6 August 2014, the spacecraft reached the comet and performed a series of manoeuvres to eventually orbit the comet at distances of 30 to 10 kilometres (19 to 6 mi).[13] On 12 November, its lander module Philae performed the first successful landing on a comet,[14] though its battery power ran out two days later.[15] Communications with Philae were briefly restored in June and July 2015, but due to diminishing solar power, Rosetta’s communications module with the lander was turned off on 27 July 2016.[16] On 30 September 2016, the Rosetta spacecraft ended its mission by hard-landing on the comet in its Ma’at region.[17][18]”


  5. jimc says:

    “The March for … What?”
    — Joe Bastardi


  6. Peter says:

    Dr. Spencer, I’ve been following you for many years and I must say that you time lapse photos of the asteroid is outstanding!

    Hope to get some real good pictures myself on August 21 of this year.

  7. Dale Hill says:

    Liked the time lapse.

    Do you think the storm named Arlene in the Atlantic ever actually had any ‘tropical’ characteristics?

  8. AaronS says:

    I wonder will my quartz crstals have extra healing power when the asteroid is near? Maybe we can collectively heal climate change as one concious effort… who is in? lol.

  9. ren says:

    Areas from Romania to Moldova and Ukraine were the latest in Europe to receive rare and disruptive April snow this week.
    Unusually cold air plunging southward and connecting with a storm tracking eastward across central Europe allowed the snow to unfold late this week.
    “The storm initially led to accumulating snow for Germany, southern Poland and into the mountains of the Czech Republic earlier this week,” AccuWeather Meteorologist Tyler Roys said. “Even Vienna, Austria, received snow.”

  10. Darwin Wyatt says:

    With the various ice ages, I side with more CO2 too. Can’t hurt. It’s obviously not a primary driver. And let’s face it, we’re one huge cinder cone or comet hit away from billions dying. We know such events happen. More CO2 now!

  11. ren says:

    Arctic air strikes Western Europe.

  12. Lewis says:

    As an aside

    Dr. Spencer, I looked for your smiling face in the news picture of Bill Nye and associates at the recent pro-scientific method demonstrations.

    Were you in disguise?

  13. ren says:

    Measure the power available in the wind: ρv3, where ρ is the air density and v is the wind (3500 m) speed, and the speed of the solar wind.

  14. ren says:

    Dr. Roy Spencer very sorry, but it might help?
    “While stem cells show promise for heart attack treatment, the process of harvesting and reintroducing the cellswhich can take days or weeksis too slow for this window. A new study in the American Journal of PhysiologyHeart and Circulatory Physiology reports a more practical approach called microsphere therapy that can be kept on-hand and administered more readily than stem cells.
    Heart attacks occur when the hearts blood vessel is blocked and blood flow stops, cutting off oxygen to the heart. Reopening the blocked blood vessel is the first step in treating the heart, but restoring blood flow is not enough to heal the heart. Oxygen deprivation damages the heart, and restarting blood flow can worsen the damage. Studies have reported that stem cells can effectively support the heart not by becoming new heart cells, but by releasing healing proteins, including ones that promote blood vessel growth.
    Blood vessels are important for recovery because they give the bodys repair processes access to the damaged regions. Specific proteins can stimulate blood vessels to grow back, but using proteins directly is not effective because they degrade easily and are difficult to store. To extend the shelf life of proteins, researchers from Erasmus Medical Center in the Netherlands used a biodegradable material called PolyActive, which keeps proteins intact, protects them from degrading and steadily releases them over a period of time. In addition, proteins in PolyActive can be stored without losing their effectiveness.
    For this study, the researchers combined blood vessel growth protein vascular endothelial growth factor (VEGF) with PolyActive to form microspheres and tested the microspheres effectiveness in pigs with induced heart attacks. The researchers observed that the microspheres were not toxic and stayed in the heart for at least 35 days.”

  15. ren says:

    Solar wind and electric-microphysical process is the key mechanism that
    affects climate
    We investigated the influencing mechanism of high-energetic particle
    precipitation modulated by solar wind on the Arctic Oscillation (AO) and North
    Atlantic Oscillation (NAO). On a day-to-day time scale, Zhou, Tinsley, and Huang
    (2014) and Huang et al. (2013) found that the minima in AO and NAO indices only
    lagged 0~2 days of the solar wind speed (SWS) minima during years of high
    stratospheric aerosol loading, which suggests a much faster mechanism of solar
    influence on the atmospheric system compared to the ozone destruction process. From
    the perspective of year-to-year variation, Xiao and Li (2016) and Zhou et al. (2016)
    showed a robust relationship between SWS and NAO in boreal winter. These
    aforementioned studies indicate that the wintertime Iceland Low in the North Atlantic
    was very sensitive to solar wind variations and played an important role in the process
    of solar wind and electric-microphysical effects on climate. Moreover, under the
    condition of a weak electric field, we have demonstrated the marked impact of cloud
    droplet electricity on the collision efficiency of cloud condensation nuclei. This, in
    turn, suggests that the collision in a cloud microphysics process constitutes the core
    link between atmospheric electricity and climate (Tinsley and Leddon 2013; Tinsley
    and Zhou 2013, 2014). Furthermore, Tinsley and Zhou (2015) improved the collision
    and parameterization scheme that varied with electric quantity in a cloud
    microphysics process and quantitatively evaluated the effects of high-energetic
    particle flux on cloud charge.
    This achievement not only supports the marked association of solar activity with
    weather and climate change on various time scales, but also but also avails the
    quantitative accession of solar impacts on climate. It is worth noting that the
    successful establishment development of a theoretical model regarding of the
    influencing process of solar energetic particles on the atmosphere improves the
    development of global climate models.

  16. jimc says:

    “Ancient stone pillars offer clues of comet strike that changed human history”


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