1397025
story
TrinSF writes
"SFGate.com, run by the San Francisco Chronicle, has a story on Comet Ikeya-Zhang. It's on a 350 year cycle, and should be visible to the naked eye in some places over the next few weeks. Here's a gallery of pictures, too."
Re:Heaven's Gate (Score:1)
Re:Heaven's Gate - Too Late (Score:1)
Re:Heaven's Gate (Score:2)
After that, I'm jaded. Unless a comet collides with a planet, it's a flop and I don't care. I mean, I recognize that a cult mass suicide is always an honor for any comet, but what I really want to see is a collision between two solar system bodies. This Ikeya-Zhang looks like it's going to be a big disappointment- mostly staying below the horizon except during daylight hours. You won't see it unless you wake up really early and look at the horizon in the few minutes before the sun comes up and ruins everything. (And it isn't even going to smash into anything. What a ripoff! What are my NASA tax dollars going, anyway?) Halley's comet pulled the same kind of stunt 16 years ago- it actually stayed on the other side of the sun from us, like it was trying to hide! You would think such a letdown would have triggered a mass cult suicide in 1986, but you would be wrong.
Re:Heaven's Gate (Score:1)
Very cool indeed.
Re:Heaven's Gate (Score:2)
Everybody missed Halley's back in 86. It's 1910 appearance was spectacular. It filled the sky. I remember in 1986, old people were telling stories about how their parents showed it to them in 1910, and said that since they were so young, they might still be alive when it came around again. But the earth was in the wrong place in 1986. The only people who saw it were rich bastards who went on package tours to mountaintops in Peru. And all they saw was a tiny smudge through a telescope. Serves them right!
Re:Heaven's Gate (Score:2)
Timing (Score:2)
Re:Timing (Score:3, Funny)
hale-bopp (Score:2)
That group in sandiago (who made lots of money as an offbeat web development company) offed themselves in march or april, claiming that the ealier events did not matter.
other details here [csicop.org].
don't forget to look over your shoulder.
[smile]
Re:Timing (Score:2)
I took some pretty cool shots of comet hyakutake back in my amateur days. Just staring up in the sky and seeing a big cloudy star that seemed like it was BLAZING through space, but frozen in time
Can't wait until this comet rounds the sun for a better view in April. Hopefully I'll have my 8 inch reflector by then.
"Clenched fist" (Score:3, Funny)
That has to be one of the best ways I've heard to describe how to find something in the sky
Re:"Clenched fist" (Score:2)
Re:"Clenched fist" (Score:1)
Re:"Clenched fist" (Score:1, Insightful)
People say that to me all the time (Score:1)
Usually it's something like "You're a clenched fist away from a suprise visit to the dentist..."
Re:"Clenched fist" (Score:3, Informative)
Note: this is all from hazy memory, so I may be wrong.
Re:"Clenched fist" (Score:1)
Re:"Clenched fist" (Score:1)
Thanks for catching that.
Re:"Clenched fist" (Score:2)
You'll notice that isn't the case
Re:"Clenched fist" (Score:2)
Re:"Clenched fist" (Score:2)
It's spring, the days are getting longer as we approach the equinox.. in the dead of winter, days really are a lot shorter
Re:"Clenched fist" (Score:1)
Re:"Clenched fist" (Score:2)
Umm, didn't Copernicus and Galileo straighten this out a few centuries ago? The sun, while moving in relation to the rest of the universe, isn't really moving in relation to the earth. The earth is moving around the sun and at the same time rotating in relation to the sun to give the appearance to an earth bound observer that the sun is moving accross the sky. In reality the sky is moving across the sun.
[sarcasm]
Wow, and you SlashDot guys think you know something about science?[/sarcasm]
Re:"Clenched fist" (Score:1)
"Well, it *does* travel 15 degrees per hour, one just has to be aware of the arc of the sun across the sky to make any sense of it...in some manner, its amazing that we're not aware of the *change in the sun-arc as the polar tilt changes our orientation to the sun relative to our perpindicular position to the sun as we travel in our oval-shaped orbit around the fusion-ball* through the sky, or the phase of the moon as a civilization. Its not hard to imagine the world in which length of day basically dictated behavior to people, and the changes in earth's seasonal behavior were daily factors in everyones life.
hopes for us on the right coast (pun intended) (Score:1)
Re:hopes for us on the right coast (pun intended) (Score:3, Informative)
It's a comet, not a meteor shower. I can't see it with the naked eye here (52 degrees north), but it's visible with binoculars. Hyakutake and Hale-Bopp were much easier to find...
Re:hopes for us on the right coast (pun intended) (Score:1)
Re:hopes for us on the right coast (pun intended) (Score:2)
1) a clear night
2) an unobstructed view of the horizon
3) a pair of binoculars
When you have a clouded night and/or blink, a meteor shower is gone. A comet will be visible for a much longer time, weeks or even 1 or 2 months...
There's a map on http://www.spaceweather.com to show where you should look.
Re:hopes for us on the right coast (pun intended) (Score:1)
Viewer's Guide (Score:4, Informative)
Re:Viewer's Guide (Score:2, Informative)
Cometography [cometography.com]
Re:Great Book on Cometography at amazon (Score:1, Informative)
It may be backordered, but AFAIK the San Francisco Library has a copy.
Comet Madness? (Score:5, Interesting)
Whether or not these occurrences actually had anything to do with the comet anxiety spread throughout Europe as soon as its impending arrival was announced, and thousands of people fled to the mountains for safety. A group of French scientists published a paper claiming that the earth would be poisoned by fumes from the comet's tail.
Reports of 'comet insanity' and suicide attempts filled the newspapers, and 'anticomet pills' guaranteeing protection from the comet's noxious fumes, where bought up eagerly.
The comet, however, came and went without much incident"
- David Louis
from his book: 2201 Fascinating Facts
Doesn't this remind you of the madness today?
Re:Comet Madness? (Score:3, Funny)
Well, I'm off to eBay to post a few pill bottles full of Skittles with the "S" logos rubbed off!
This'll be as easy as selling Nikes to Heaven's Gaters.
~Philly
Re:Comet Madness? (Score:1)
That was one BIG COMET just hanging in the sky.
You drive across the state, and it is just hanging there, this BIG ***ed comet.
If you need a omen, that comet would apply.
For me it was the most beutiful thing I've ever seen and it changed my life very much. I didn't think I'd ever see a nice comet, not to menthing this BIG ***ed comet just sitting there in the sky no matter I was doin.
Re:Comet Madness? (Score:2)
Well, if that isn't a case of self-fulfilling prophecy!
Not as Bright as Hale-Bopp (Score:4, Funny)
Hale-Bopp was awesome and it had the added advantage of culling the low end of the gene pool.
On Hale-Bopp Zealots (Score:1)
I saw the funniest bumper sticker just after the Hale-Bopp event: "So many idiots, so few comets".
BTW, I don't think those guys were "dim", per say, just fanatical. IOW, their religious fever overrode rational thought.
I am not one to conclude that heavily religious people are necessarily intellectually lacking. The two have a low correlation as far as I know. (Note, I am not religious.....at least not in the traditional sense.)
Re:On Hale-Bopp Zealots (Score:2)
their religious fever overrode rational thought.
The ancient battle between our rational body of knowledge and our passions is complex. I think, but could be recalling the facts incorrectly, that the original context for theory has to do with a Dionysian orgastic communion with a god. I hold we, as bio-chemical entities, are necessarily junkies. Culture has much to do with the witch's brew we self-generate to propogate our kind and stay safe. Acquiring the habit of critically questioning most, if not all, facets of one's life doesn't make for a fun person. I agree religion has little to do with the degree of intelligence of the practioner. Many of the great minds of our history is almost a list of famous religious personages who, inter alia, furthered learning when the Church of Rome was the only stable institution.
cheers"Hale-Bopp, which blazed across the night sky..." (Score:1)
I guess a dim smudge [nasa.gov] is better than the wonderous display put on by comet Kohoutek [exploratorium.edu]
Re:that's funny... (Score:2, Funny)
Take a good look at that comet. (Score:1, Funny)
One day, you'll be outside doing some chores, and then will notice that you have more than one shadow. that shadow will sweep past the original like the arm of a stopwatch. And then....you can eat all the cookies and icecream you want.
NASA approves 2004 mission to smash comet (Score:1, Informative)
PASADENA, Calif. (AP) -- NASA approved a mission Thursday designed to send a projectile hurtling into a comet in an effort to bare the dirty space snowball's nucleus for study.
National Aeronautics and Space Administration officials gave the Deep Impact mission team the nod to begin full-scale development of the spacecraft for a January 2004 launch.
The $240-million mission will take 18 months to arrive in the neighbourhood of Comet Tempel 1. Once at the comet, the main spacecraft will deploy a smaller, 350-kilogram impactor to smash into the body July 4, 2005.
The main spacecraft will remain at a safe distance to measure and image the outflow of gases from the blast hole, the size of a football field and seven storeys deep. The impact should cause the comet to brighten enough to be visible from Earth.
The artificial cratering of the comet won't destroy it but will kick up enough material to allow scientists to learn more about its composition. Preserved by the deep freeze of space, comets are thought to contain pristine examples of the primitive material that formed the solar system 4.5 billion years ago.
Comet Tempel 1 [google.com] was discovered in 1867. It orbits the sun once every 5.5 years.
Re:Right on time (Score:1)
Re:Right on time (Score:2, Interesting)
I hope the Antichrist comes (Score:1)
Given that the current Christ/God sits up there, infinitely powerful, as children are raped and tortured and murdered, and still calls Himself "good", I don't see how the Antichrist would be anything but a blessing.
Remember that Yaweh is the fuckhead who, knowingly, gave us intelligence, i.e. knowledge of good and evil, then cast us out.
For you cannot overcome the brute fact that, while it may be in the nature of an infinitely powerful and good being to create self-aware beings, it does not follow you put them in a universe where they can torture and murder each other. Sit and judge with me: that god is fucked up.
Good, I knew you could.
We are no longer the knights who say "ne", (Score:4, Funny)
"Ikeya-Zhang Now Visible" (Score:1)
Tracking interplanetary objects? (Score:3, Interesting)
If not, can someone point me to or explain to me the mathematics behind the orbits of interplanetary objects? If so, I think I would be able to write the software myself. I suppose I would need to know the conventions used for the orbits of existing objects so I could input new objects into the system.
Thanks. If you don't like public forums, you can email me at kholmes@sedona.net.
Re:Tracking interplanetary objects? (Score:4, Informative)
Re:Tracking interplanetary objects? (Score:3, Informative)
Links to seti@home area for sky maps. [berkeley.edu]
Because any discussion of orbital mechanics will run into the pages I suggest you visit these sites:
if that doesn't help try these
If you make a open-source program, email it to me. I'd love to try it out. bill_dinger@N.O.S.P.A.M.yahoo.com
Re:Tracking interplanetary objects? (Score:3, Informative)
Is this normal? (Score:1)
Build Your Own Telescope (Score:4, Interesting)
It's very interesting and enjoyable. Try it! Maybe you'll discover a comet too someday.
True, to purchase an 8 inch reflector isn't that bad anymore, but with the skill you gain from building a small telescope you would become able to build a much larger telescope affordably; to buy one, say a 20 inch, would be beyond the financial reach of most working people, but you could reasonably build one. Many people do.
The amateur telescope making mailing list will be glad to help you out. Mel Bartels has a lot of telescope making links [efn.org].
Re:Build Your Own Telescope (Score:1)
Nucleus closeup (Score:5, Interesting)
Comets are one of the coolest things to observe in the sky because they CHANGE like every night!
Re:Nucleus closeup (Score:1)
Re:Nucleus closeup (Score:2)
Even if this comet is close enough to the sun, its possible that the tail is pointing away or towards the earth and therefore not detectable from our point of view.
No, I'm an expert. Yes, its a nice image
Re:Nucleus closeup (Score:1)
Re:Nucleus closeup (Score:1)
More Pics of Ikeya-Zhang (Score:2, Informative)
I've seen it (Score:2)
Since there's not exactly been an abundance of actual observations, I'll throw my own: I saw the comet for first time at the beginning of the month (5.3.) with binoculars. Back then XEphem [clearskyinstitute.com](a really nice program) estimated its brightness as 5.42 magnitudes; my own estimate was somewhat less, somewhere between 5.5 and 6.0 magnitudes but it's of course difficult to do this for nebulous patches of light compared to stars. ;)
Since that I've seen it three times (it's been horribly cloudy in Finland during this month!), and only at last week I managed to see the tail faintly. Today weather has been nice, so maybe now I can make another observation.
I'm a bit pessimistic as far as seeing it without binoculars goes for myself; living at the edge of city means some light pollution and its nebulous appearance definitely does not make things easier. (For comparison, persons with good eyesight should be able to see stars of magnitude 6 with naked eye under good conditions and the brightness of comet should be now around magnitude 4.)
Ikeya-Zhang (Score:1)