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Space

Remembering the Transit of Venus on Its 10th Anniversary (space.com) 27

"Venus crossed the sun's face 10 years ago today," writes Space.com. "Most people alive will never see the sight again."

Long-time Slashdot reader davidwr is still thinking about it: Slashdot, what are your memories of the 2012 or 2004 transits? What about other celestial events that you probably won't live long enough to see again?
At Space.com, astronomer Tom Kress points out Mercury transits are more common, occurring about 13 times each century — and supplies some context (along with some cool photos): In 1639, English astronomer Jeremiah Horrocks had improved on Kepler's tables using his own observations and aptitude for mathematics. He predicted a transit of Venus in December of that year with just a few weeks' notice, and sure enough it occurred. Kepler had miscalculated, and Horrocks became one of the only people in the world to have seen a transit of Venus....

Only six Venus transits have occurred since: in 1761 (as predicted by Kepler), 1769, 1874, 1882, 2004 and 2012. They come in pairs separated by eight years, but with more than a century between each set. The next transit won't occur until 2117 and, with this in mind, I made every effort to witness the entirety of the last one 10 years ago....

Shortly after noon local time, the black edge of the silhouette of Venus emerged on the face of the sun... A chorus of vocal awe erupted across the crowd of skywatchers, culminating in cheers of excitement as Venus' night-side began its rapid ingress onto the disk of the sun — a process that took just over 15 minutes....

I couldn't help but feel closer to Venus than I really was, standing on a huge terrestrial volcano and looking out at the most volcanic planet in the solar system.

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Remembering the Transit of Venus on Its 10th Anniversary

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  • and the start of the simulation?

  • Everyone knows (or should know at least) how much bigger the Sun is compared to the planets, but it is something else to actually see it.
  • I've seen two Venus transits: one from the Australian outback, temperature mid 30s (Celsius) and the other from New Zealand with snow on the ground. We had a solar 'scope for the first one, which had probably never been done before. Seen two Mercury transits too. Haven't seen a total solar eclipse yet though. As an amateur astronomer, that is unacceptable!
  • That was true in 1769, when Captain Cook took a long voyage to the far side of the world to observe the transit.

    But since then we invented cameras and VCRs. No need to miss an episode.

  • by jaa101 ( 627731 ) on Monday June 06, 2022 @03:45AM (#62596458)

    The next transit won't occur until 2117

    There's one at 23:45 UTC, 19 August 2030 ... if you can make it to Mars by then. After that there are a further six transits of Venus visible from Mars this century, happening at: 18:43, 18 June 2032, 03:35, 5 November 2059, 15:50, 17 June 2064, 00:14, 5 November 2091, 11:16, 16 June 2096 and 06:00, 16 April 2098. Surely people will be living on Mars, and probably in other solar system locations from whence Venus transits can be viewed, long before 2117.

    Predictions from here [fourmilab.ch].

  • I guess that's it for me, definitely won't be around for the next one :)
    I have observed a couple of Mercury transits, the consolation price. Last time was in 2016 (took some pics too: https://astro.ecuadors.net/2016-mercury-transit-heaton-park/ [ecuadors.net]), although inner planet transits are not as exciting as say total eclipses of the Sun, for which most of us there's still time as long as we are willing to make the trip (here [ecuadors.net] for pics from my 2017 trip to Madisonville, TN).
    About other events I will probably not live

    • A reprise from a post I made in 2004 [slashdot.org]:

      Super Comet Fragment Impact
      Jordin T. Kare and Bill Higgins
      Copyright 1994 by Jordin T. Kare and Bill Higgins

      So Bill asked innocently whether anyone had written a song about the
      Jovian Train Wreck, and the Muse of Parody tortured Jordin until the
      answer was "yes." Tune: "Super-califragilisticialidocious," [6/6/22: Hyphen inserted to avoid Slashdot lameness filter. -davidwr] of
      course.

      Chorus:

      Super comet fragment impact extra-large explosions
      Even though a sight to stir astronomers' emotions
      If you watch them long enough you'll get peculiar notions
      S-c-f-i-e-l-e

      Verse 1

      I used to talk of dinosaurs and layers of irid-
      Ium until my friends all ran and all the neighbors hid.
      But now my tales of comet hails are what they want to know
      And all because Ma Nature has put on a cosmic show.

      Verse 2

      For several weeks those gleeful geeks have popped up on my Teevee
      Astronomers displaying pictures of Shoemaker-Levy
      It's giving more enjoyment, from Mt. Stromlo to Caltech
      Than a demolition derby or a locomotive wreck!

      Verse 3

      Professionals watch Jupiter with Keck and Hale and Hubble
      But we can see those spots and flares with hardly any trouble
      Be wary of astronomy, for it can change your life
      I watched them with me girl one night, and now me girl's me wife
      [whack!] And a stellar thing she is, too

      Those...
      (changed chorus:
      If you watch them long enough you'll miss a few promotions...)

      Shout-out to beamjocky [slashdot.org] AKA songwriter Bill Higgins.

      Copied from a 1997 post to rec.music.folk (USENET) in 1997, archived by Google [google.com] and archive.org [archive.org].

  • I remember the transit of Venus quite clearly. Knowing it would be an event I could witness only once, it was what convinced me to buy a decent telescope.

    I'm sure many of us have looked through a crappy discovery channel $50 thing and declared astronomy a pointless hobby, but a lovely 8" Schmidt–Cassegrain, a decent mount, and solar film later and I had a new hobby that would provide me many years of joy.

    Resulting picture of Venus at max transit, and one of the first 10 images I ever shot: https://img [imgur.com]

  • I'm sure it poses great excitement to some, just as a new James Bond movie or a new Rihanna song. Others probably think "what is the fuss about".
  • by weeboo0104 ( 644849 ) on Monday June 06, 2022 @08:48AM (#62596836) Journal

    I used a 10x50 binocular mounted on a tripod and projected on posterboard.
    I also found out that John P Sousa wrote a march titled "Transit of Venus" and also a novel with the same title.
    Both the 1874 and 1882 transits occurred in his lifetime although it is not certain if he saw both.

  • Wake me up when we can see Mars cross the sun's face - now that will be an event..
    • If that happens, we have bigger problems.

      Either that or we're doing awesome because we're on Mars and can see Mars transit the sun every single day.

      Or look at it this way, you get to watch an Earth transit every 24 hours.

  • Used a pair of marine binoculars with two telescope solar filters affixed to the end. Great for admiring sun spots as well.. Easy to pass around not so powerful that finding the sun is a chore.

  • by Gim Tom ( 716904 ) on Monday June 06, 2022 @10:25AM (#62597052)
    My late wife and I watched this through my old refactor telescope from my child hood. I had a proper solar filter and had used the scope for observing sunspots for years.

    She and I often stayed out late on our deck to watch meteor showers, and especially the apparition of comets.

    However, this was the last astronomical event that we were able to share, since she became terminally ill shorty after and passed at the end of October that year.

    The memories of this are both sweet and bitter.
    • by ogdenk ( 712300 )

      Fuck dude, that sucks. That would probably make any astronomy in general painful for me and hard to continue.

  • NASA Ames Research Center arranged Natalie Batalha, Kepler research scientist, presenting what Venus transit means for astronomy and how Kepler searches for earth sized planets. https://www.youtube.com/watch?... [youtube.com]

    Outside the visitor's center was several amateur astronomers that set up their gear (quite impressive too), many non-astronomers attended so they can observe and also get ask all sorts of questions to many very knowledgeable people.
    Interview with Dan Wright of San Jose Astronomical Association
    htt [youtube.com]

  • I was all set to observe it from my suburban Vancouver balcony. The clouds had other ideas, alas.

    I did, however, observe the Mercury transit in 2016. The eclipse in 2017, which I observed from Idaho, was the best I've ever seen.

    ...laura

An Ada exception is when a routine gets in trouble and says 'Beam me up, Scotty'.

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