Leonid Meteor Shower Observation Tips 117
mao che minh writes "For those of us around the world planning on stepping out and witnessing the Leonid meteor showers next week (November 19th), NASA is running an article that will help you maximize your meteor shower viewing enjoyment, straight from the experts' mouths."
my tips (Score:3, Funny)
Re:my tips (Score:1)
Re:my tips (Score:2, Funny)
Refreshening. (Score:1)
Of course, having to get up at 4 am isn't really my daily routine...
Re:Refreshening. (Score:1)
Re:Refreshening. (Score:2, Interesting)
The last Leonid shower I saw was in 1998 while I was doing some work at the Woodbury Research Facility [gatech.edu]... It was quite a good show and since this place is in rural Georgia, it was extremely dark... I tried looking at last year's shower, but the light situation in suburban Philly is horrible..
One other fun thing that I've found to look at is occultation around the edge of the moon. On occasion, mountains on the moon obscure stars passing near the horizon for a few minutes. With a small scope, it's really cool to watch them disappear and reappear along the edge. You can find occultations listen in Astronomy Magazine [astronomy.com]...
Happy Viewing...
get up? (Score:1)
What age? (Score:3, Funny)
Be sure to watch out for Harry the Horse, Donald the Duck, Cleo the Camel and Tux the Penguin while sipping your cocoa!
Guaranteed meteor shower viewing enjoyment (Score:1, Funny)
Re:Guaranteed meteor shower viewing enjoyment (Score:2)
Re:Guaranteed meteor shower viewing enjoyment (Score:2)
A camera is more of an essential than a telescope..and I don't mean for taking pictures of your nights debauchery with cowboyneal, I'm talking about taking pictures of the meteors.
Attack (Score:2, Funny)
time (Score:1, Insightful)
WTF is ut. Somebody give me the CET time.
Re:time (Score:5, Informative)
No matter where you live, the hours between 11:00 p.m. on Monday and dawn on Tuesday are going to be the best for spotting Leonids."
Re:time (Score:3, Interesting)
Re:time (Score:5, Informative)
But if you want to know the peak time when thinsg should (hopefully) be at their best, try
http://leonid.arc.nasa.gov/estimator.html
It's a java applet where yu can select your location and get the time of the peak (although for some reason there are no cities in Germany!)
Re:time (Score:1)
I normally understand "No matter where you live" as "No matter where you live in the US" as too-many US sites do not care about the non-US readers
Re:time (Score:2)
-aiabx
Re:time (Score:1)
Re:time (Score:1)
-aiabx
Re:time (Score:3, Informative)
Whoa, time to go to bed. (Score:4, Funny)
Light Pollution (Score:5, Informative)
""Try to get away from city lights," he suggests. "The darker the sky, the more meteors you'll see."
Of course, if you live anywhere near a city your view will be obscured by that pleasant glow of street lamps. You'll HAVE to make a trip into the countryside to see anything but the brightest of meteors. I don't mind the Moon, as it's something to look at with binoculars during quiet bits of the storm.
If you're in the UK, The Campaign For Dark Skies [dark-skies.org] is an interesting site about this problem.
This image, showing the entire world's wasted light, is also intriguing. Think of all the money wasted because idiot government officials allow such wastage.
Re:Light Pollution (Score:5, Interesting)
not trolling - just had that awesome image on my desktop for ages and recognised it straight away!
Re:Light Pollution (Score:2, Insightful)
Re:Light Pollution (Score:3, Interesting)
I'm sure there is lots of light that doesn't need to be turned on at night (office buildings) and is wasted, and I imagine it probably correlates quite well with city size, but it's not all wasted.
Re:Light Pollution (Score:4, Informative)
because if you can see the light from space then the light on the ground going up and thats not too much use to us eon the ground. the headlights of a car go sideways and there's no way you'd be able to see that from space (well, not at thos resolutions).
dave
Re:Light Pollution (Score:2, Insightful)
Re:Light Pollution (Score:2)
Re:Light Pollution (Score:2, Interesting)
You can identify a full cutoff light if you look at it directly from the side. When it's on, you won't be able to see the bulb.
Full cutoff lights are superior in that they don't produce glare. How much can a person see if a light is shining right in their eyes? Not a lot. Try it with a flashlight, and the hazard of shining a streetlight directly into a driver's eyes will become apparent. Harsh lights also create harsh shadows that are ironically EASIER for a prowler to hide in. A light going straight down doesn't cast a shadow, and minimizes those hiding places.
This situation is the ideal win-win situation. For everyone concerned, astronomers, drivers, taxpayers, bird lovers, and security conscious homeowners a full cutoff light is the best choice.
Re:Light Pollution (Score:5, Informative)
North America, at about 4:30AM of the 19th is about the peak time to watch for it.
I've seen estimates ranging from 2,000 to 7,000 hits per hour, and some have even said 10,000 or (during the really high times) up to 1,000 per minute.
So we aren't talking a little tiny shower this year.
Next time we'll have a storm like this will be in about 36 years, so you should want to check it out when you have the chance.
It's a shame the moon is nearly full that night, though.
Anyway, even if you can't go too far out of the city, just standing in the shadow of a tall building will give you a decent view, given the sheer magnitude of the storm.
-gleam
Re:Light Pollution (Score:5, Informative)
Unfortunately, the next time Temple-Tuttle (the source of the debris that we're watching) comes through in 30 or so years, it will not be passing close enough to leave a good amount of dust in our orbital path to create the kind of storm we're treated to this year. In fact the next pass after that still won't be close enough. It won't be until 2098 before it passes within .0062 AUs (close enough to get a storm in the following year or three).
All of this information and some great viewing suggestions and times are attainable in a really good article at Sky and Telescope [skyandtelescope.com].
Re:Light Pollution (Score:2)
So the distance of the comet from Earth at its next perihelion is no predictor of the intensity of the storms that may occur then.
my no. 1 tip... (Score:2)
important point! that, and the moon issue It's a shame the moon is nearly full that night, though. ...is why I'll be doing my observing closer to sunday or monday if the weather cooperates...
Re:Light Pollution (Score:1)
In Chicago, the sky is usually completely red all night. Hopefully the far suburbs will fare a little better.
Overstating things leads to disappointment... (Score:2)
Even the HIGHEST prediction is "only" 1200 per hour. While this is a superb shower, it does not qualify as a storm. The moon, as noted, will wash out the fainter ones.
Meteor prediction is a young and inexact science, so don't plan on setting your alarm for the exact time of the peak and then seeing it. Go out early and stay late!
Great page here at space.com [space.com].
I'm hoping for CLEAR SKIES!
Re:Overstating things leads to disappointment... (Score:2)
http://aio.arc.nasa.gov/~leonid/1998.html
Check that for the ZHR for the overall US..
Quote: "Two Leonid storms are expected with rates higher than in 2001, when the Zenith Hourly Rate peaked at 1,300
The great leonid flux estimator at http://aio.arc.nasa.gov/~leonid/estimator.html offers a prediction of 3000/hr at the peak time of 4:20 am CST (for chicago, in the countryside, like at a state park or something)
so although I think 10,000/hr is definitely a very, very high estimate for a single area, it's well within the Asher predictions for ZHR at about 4:20AM CST
-gleam
Re:Light Pollution (Score:3, Interesting)
Re:Light Pollution (Score:2, Informative)
Trust me on this one... i was watching the Leonid shower last year as well. (unfortunately, i'm not much of a photographer.)
if you're a naitive to the area, or will be back, drop me a line cnj110.nospam@nospam.psu.nospam.edu
just remove the spam protection
Re:Light Pollution (Score:2)
It must be early... (Score:2, Funny)
It's amazing the different ways your mind punishes you for the previous night's Guinness binge.
Again? (Score:3, Insightful)
Re:Again? (Score:1)
the 18th? (Score:3, Funny)
I am SO on to them.
Re:the 18th? (Score:1)
I bet they wonder which month is the 19th when they see the date correctly written as 2002-11-19 or 19/11...
It's later this year (Score:2)
The Leonids shower usually peaks at about that time every year. This year though, there are a couple of storm peaks predicted.
The storms are caused by specific trails of ice and dust left by the comet, and the Earth is expected to go near those trails slightly later than the regular Leonids shower peak. This is why the predictions you're hearing are slightly later than the regular date.
NASA (Score:1, Funny)
Re:NASA (Score:1)
Ahemm, this advice comming from those claiming to have landed on the moon.
All very good advice (Score:5, Funny)
1) Invite ladyfriend along
2) Bring blankets (can get a bit chilly)
3) Bring whisky (see 2)
4) Remember rehearsed "Isn't it beautiful, the depth, the colours. Alas, still not a match for your eyes" lines and other "romanticisms"
5) Bring protection (see 1 + 4 + 3)
You know it makes sense.
Re:All very good advice (Score:4, Funny)
1) Invite friend to geek event
2) ???????
3) Get lucky!
Re:All very good advice (Score:1)
Make sure she's on top though, otherwise you'll miss the shooting stars.
Re:All very good advice (Score:1)
Let me guess... you aren't in the company of females very often? :)
Cheesiness (and that really isn't as bad as it could be) always goes down a treat, especially when accompanies by a load of boozebeforehand.
Oh, and if you're looking at the shooting stars. Well. Ahem. Best not to mention what shooting she'll be viewing.
Very Cool (Score:3, Funny)
Everyone feel sorry for me now.
Re:Very Cool (Score:1)
Three things (Score:2)
I'm betting we see nothing spectacular (Score:1)
Btw, this we know is going to happen, Australia and Africa are going to get a partial solar eclipse on the 4th of December. http://www.assa.org.au/observing/eclipse2002/
Re:I'm betting we see nothing spectacular (Score:2)
Don't give up!
Re:I'm betting we see nothing spectacular (Score:1)
Re:I'm betting we see nothing spectacular (Score:1)
Anyway, I don't think leonids hits Australia but I better take a look.
Re:I'm betting we see nothing spectacular (Score:1)
Re:I'm betting we see nothing spectacular (Score:1)
imagine (Score:1)
made you look
Well, that was useless. (Score:1)
Oh well, I can always pretend the raindrops are comets.
What do you mean, flash gordon approaching.. (Score:1, Funny)
This time im being prepared!
A Rocket just like Hans Zarkov made.. just incase these babies get too close!
Oh sure, your laughing now.. im not sharing my moon rocket with anyone!
Re:What do you mean, flash gordon approaching.. (Score:1)
NASA people are soooo smart and soooo funny... (Score:1)
"It can get cold in November at 3 o'clock in the morning."
"Try to get away from city lights," he suggests. "The darker the sky, the more meteors you'll see."
Gee, thanks. I never would have guessed.
You would think... (Score:3, Funny)
Re:Important telescope astronomy tips (Score:3, Informative)
Don't use a telescope.
Meteors are pretty zippy. By the time you get a telescope trained on the exact spot where a meteor was, it and twenty of its fellows will be gone. Its even hard to train a pair of binoculars on an individual meteor, unless it is a particularly slow moving fireball.
Use your naked eyes (with glasses if you need them). Spend at least 20 minutes outside in the dark before begining any serious observations. Protect your eyes from street lights, porch lights, flash lights, looking directly at the moon, any light source that is non-red and/or bright. Do not go into your brightly lit home for anything.
And if you are in the Northern hemisphere, dress warmly. It is November. Dress for 20 degrees below the actual temperature, in layers.
General: "Increase voltage"
Officer 1: "Turn power up"
Engineer: "Captain, we're registering too much voltage for safety now."
Officer 2: "Increase voltage"
Voltage sound effects, shot of Godzilla struggling, cable burns through, substation fries, Godzilla is free.
Scene from American version "Godzilla vs. Mothra" (1964)
Mothra: boldly going where no starship captain had gone before.
meteors (Score:3, Interesting)
However, no matter how many meteors there are and how often they come, it seems to be VERY difficult to capture them on film. Using an SLR camera with a cable release and a tripod, a friend and I used something like 5 rolls of films and probably only got 15-20 usable pictures that had meteors in. (You can check them out here at peterswift.org [peterswift.org]. And they weren't joking about light pollution either! We were pretty far out in the country in North Central PA at Camp Susque [susque.org], but even the lights from a tiny town with one gas station and a restaraunt really made a lot of the pictures have big bright spots (and the town/village was about 3-4 miles away!).
Re:meteors (Score:2)
Use fast film and a large aperture lens to try to get photos of single meteors with stars as points. Use slower film (and longer exposures) to get star trails. That might be easier since you never know when the meteors will appear (last year I only saw about 100/hour for a couple hours).
You also have to watch out for dew condensing on your lenses. It might also be a good idea to keep your camera bag in the garage for a couple hours to let the camera and lenses cool down.
Re:meteors (Score:2)
i shot TMAX-100 at 100, with f3.5 lens at 28mm, and kept the sucker open for 15 minutes for each exposure-- got wunnerful trails, but only ONE nice-lookin meteor (dumb camera was pointed in the wrong direction). only got a couple of usable shots, as i only brought one battery (which is why i remind you of the above suggestion).
it's very important to have a tripod! and don't futz with your camera! if you've got a shutter release, that's great too.
here's my obligatory photo of the leonids from last year [bellatlantic.net]. one nice one, several very faint ones.
no good chance for me (Score:1)
Oh, and btw, my .sig is a joke. You can't take it seriously as I think some have.
ISS? (Score:2)
The sat operators have been told to close down non-essential systems and to reorientate themselves to present a minimal profile to the showers.
Re:ISS? (Score:2, Informative)
http://spaceflight.nasa.gov
http://spaceflight.nasa.gov/realdata/sightings/
So happens they are viewable Tuesday morning from KC MO.
If you want to count the rate - here's a help... (Score:5, Informative)
You can find it here. [nasa.gov]
And information about it over on Space.com [space.com].
Why bother... (Score:2)
My local weather forecast: [ec.gc.ca]
Greater Vancouver: Issued 5.00 AM pst Friday 15 November 2002
Today..Cloudy with 60 percent chance of rain. Rain developing this afternoon. High 11.
Tonight..Periods of rain. Windy near the water. Low 8.
Saturday..Rain heavy at times. Wind southeast 30 to 50 km/h near the water. High 12.
Sunday..Periods of rain. Low 7. High 12.
Monday..Rain. Windy. Low 9. High 12.
Tuesday..Rain. Windy. Low 8. High 11.
Normals for the period..Low 3. High 9.
Looks about par for the course. Maybe some of you can post some nice pictures of the Leonids for me somewhere.
dangerous to your neighbors health (Score:1, Funny)
Suggested equipments for best view (Score:2, Interesting)
I want to take pictures of the night.
Any preparation is needed??
Re:Suggested equipments for best view (Score:2)
read this -- [luminous-landscape.com]
http://luminous-landscape.com/techniques/leonid
Re:Suggested equipments for best view (Score:2)
And here is the result [gdargaud.net] (see the shooting star on the right [gdargaud.net] of the picture ?). Pic taken in Utah.
Shortwave radio + PC = meteor strike counts (Score:1)
I've seen several applications over the years that use a shortwave radio hooked up to a computer (I've seen C64 and recently a PC version) used to count the hits by meteors in the upper atmosphere. I forget the links though I'll have to do a search. Just thought I'd mention it now beforeI forget.
Now if there was a CF card for my PDA that could do that...ahh that would be cool.
Now wouldn't this be the true geek way instead of actually going outside?!?!
33 year cycle (Score:1)