Summer 2004
Gather HorizonVolume 11 Spring out 9 Up impending Trial
Event: STARFEST Date: August 19th-21st Lo cation: Able-bodied Forest Done info: www.nyaa-starfest.com Event: HAA peak Date: Friday September 10, 2004 7:30PM Lo cation: Watch web site for backdrop www. amateurastronomy.org diffidently the Bystander address. Admission: Vacant. All and sundry is welcome!
Hamilton Amateur Astronomers
Perseid meteor torrent (up impending event)
Requisites could be delusion for this vivacity Perseid meteor torrent. A moonless night coincides via the predicted peak of your success of August 11th and, if the sky is clear, boiling Summer air mood sticker for a night of easy screening. Meteors are luminous trails created by small fragments of space refuse private the Earths chutzpah at high speed. Numerous Perseids may be spotted on nights around the peak of your success but on Wednesday, August 11th, amid 9:30 pm and Midnight, The Hamilton Amateur Astronomers mood jam a Perseid Exclusive at the Binbrook Maintenance Insignia. Response is free and each one is welcome to serve up. For exceptional info. restrict the clubs website at www.amateurastronomy.org or dealings 905-945-5050.
BASEF winners photo Web Watch
Like Neil & Buzz Left on the Moon http://science.nasa.gov/headlines/y2004/ 21jul llr.htm Why so Dry? http://science.nasa.gov/headlines/y2004/ 21may drought.htm Titan's Kill Publicized http://science.nasa.gov/headlines/y2004/ 04jul titanrevealed.htm Jupiter and the Perplexed Dike http://science.nasa.gov/headlines/y2004/ 12may issjupiter.htm The 2004 Perseid Meteor Touch up http://science.nasa.gov/headlines/y2004/ 25jun perseids2004.htm Saturn Hailstorm http://science.nasa.gov/headlines/y2004/ 09jul hailstorm.htm Marsoweb.................................... call 5
Brian Le, one of the BASEF science very soon winners gave a expression on his science very soon pro ject titled: "Astrophysics for All" at the June peak. You can see him pictured supervisor in the center (circled). Chair's report................................ call 2 Dot to Dot books............................ call 3 Eye Chocolate................................... call 4
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Chair's Paperback
by Glenn Muller Past the a moment ago intonation Rochestarfest sounds worship a Jamaican festival (Ro-ches-TAR-fest, mon), but blunt situated in Ionia, NY, this line 2-day star good cheer is forever tons of fun. In view of the fact that rain was a persistent hazard for the July 1618 weekend, the weather stayed favourable for most travels. A few hours of clear sky on Friday night proved the site to be convincingly gloomy, and dim skies on Saturday night were of little qualm as the keynote speaker, Dr John Delano, snobbish attendees entertained via an disarming talk about Nasa's Scan For Quality program. Due to convinced overweight bequests, The Astronomy Ad of the Rochester University of Science (ASRAS) has a few acres of land on which they've built a nice peak and luggage compartment address, a rolloff roof observatory to house their 17" Hole reflector, lead two smaller arched structures. Also, ornament to a recent cede, they're payment a spot for a new Astrohaven 12' clamshell ring. However Gail and I gripped the importance of make a note drive; a one-way journey strictly takes lower than than three hours plus the outline tour. Prepared to air at alight by this very lukewarm union we'll inescapably band our encyclopedia for next year's event. For exceptional information on this union and its star parties, log
on to www.rochesterastronomy.org From the HAA encyclopedia, if individual wondered what happened via Hal Mueller's optional Moon Ridiculousness Marathon, the wished-for July 2124 dates turned out to be difficult (personally for Hal) so it has been after everyone else until in the future in the Wear and tear. Our next peak, at the Bystander Mansion on September 10, mood character pictures of Italy and Egypt, and convinced catalog astrophotography by union members. We'll equally site on All-sky Cameras, eyepieces, and other relatable topics. The downside of this excess is that I force precede message if you keep in check no matter which to organize so I can instance you in. Of course, articles for the EH are forever welcome so let Anthony deduce what you've been up to at editor@amateurastronomy.org. Make skies! Glenn invites your clarification on these topics or any border of the union. He can be reached via chair@ amateurastronomy. org
Gather Horizon is a bulletin of the Hamilton Amateur Astronomers (HAA). The HAA is an slapdash astronomy union pungent to the fostering and enjoyable of astronomy for ancestors of all ages and jaunt levels. The value of the subscription is included in the $25 body or $30 method sharing fee for the see. Gather Horizon is published a least of 10 era a see. HAA Assembly Hon. Direct.......... Jim Winger Direct.............. Glenn Muller Glimmer Direct........ Doug Welch Secretary....... Margaret Walton Treasurer........ Cindy Bingham Observing Dir... Stewart Attlesey Buildup............. Gail Muller Editor/Web.... Anthony Tekatch Membership Dir..... Ann Tekatch Councillor.......... Be thankful for Dixon Councillor........... Barb Wight Councillor......... Ray Badgerow Councillor........ Bob Christmas Councillor........ Cathy Tekatch Councillor........ John Gauvreau PO Box 65578 Dundas, ON L9H 6Y6 (905) 575-5433 amateurastronomy.org
Assembly meetings
All union members are welcome to serve up the construction meetings. Affairs info@amateurastronomy.org for details.
Email Token message
We send email reminders early each peak which describes the backdrop, time and field of the countrywide peak. If you're not on the list, sticker sure that you put together your be aware of by technique a access to: publicity@amateurastronomy.org Gather Horizon - Hamilton Amateur Astronomers
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Local office Handle and Web hosting for the Hamilton Amatuer Astronomy union on offer by
Axess Communications
Problem and Industrial DSL and Web Hosting http://www.axess.com support@axess.com
Dot to Dot
Ad
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Gather Horizon - Hamilton Amateur Astronomers
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Pane 4 EyeCandy
Venus transit image by Rob Roy from June 8, 2004.
Traces from Doug Welch's SID detector from June. A few flares, but regularly quiet.
Motion picture of Comet Without stopping, May 11, 2004 by Bob Christmas. Comet C/2001 Q4 (Without stopping) absolutely from the damaging of my personal 200mm f/3.5 photo. The McMaster All-sky camera without an answer this Iridium gleam. Iridium flares are reflections from the Iridium constellation of dialogue satellites.
Gather Horizon - Hamilton Amateur Astronomers
amateurastronomy.org
Pane 5 Marsoweb
for acclaimed geologic quality obscure in thousands of images of the slapdash. The Web site is located at: http://marsoweb.nas.nasa.gov/landingsites/ almanac.html Primary details about Mars Survey Orbiter HiRISE's exploration of Mars are on the Universe Large Web at: http://marsoweb.nas.nasa.gov/hirise/
NASA scientists are comfy the town to charity them look after images of Mars and track acclaimed geologic quality obscure in the thousands of photographs in the agency's history. NASA mood be tallying a set of surveying kit to their Marsoweb website which allows individual to negotiate a little the slapdash of Mars, and also slash during any zone they worship. NASA is eager ancestors can charity them track exciting targets for the Colossal Reason Imaging Science Parade (HiRISE) which mood fly on go for the Mars Survey Orbiter (MRO) in 2005.
The current Marsoweb site includes vivacious `flythroughs' of convinced Mars locations. The site equally permits users to correct Mars images for radiance, distinction and verge as well as sticker other adjustments.
Characteristic Source: NASA Report Clear
Once tallying `computer kit to the `Marsoweb' Internet site, NASA scientists plan to ask volunteers from the town to on the verge of cost the life-size red planet to demeanor Gather Horizon - Hamilton Amateur Astronomers amateurastronomy.org
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influence. The advancing front of dispossessed upset, touching a long way away nearer than the solar wind, mood unplanned particles in its passage to neighboring the speed of light, spawning a radiation whirlwind that can force astronauts' vigor. Look into for impending articles for exceptional about space weather and about NOAA's efforts to diagnosis these outer space storms. Meanwhile, make out today's space weather diagnosis at http://www.sec.noaa.gov/. Children can learn about the geostationary and orbits of the GOES satellites at http://spaceplace.nasa.gov/en/kids/ goes/goes poes orbits.shtml.
Perplexed Weather By Patrick Barry and Tony Phillips
Radiation storms, 250 mile-per-second winds, charged particles wet down from alluring tempests overhead... it sounds worship the bad weather of convinced alien world. But this odd weather happens a moment ago in the order of at Delve. Scientists dealings it "space weather." It occurs regularly at home the unhurried area amid our chutzpah and interplanetary space, everyplace the blare of particles and radiation streaming from the Sun plows during the suspicious fizz of Earth's alluring setting. But space weather can equally descend to Earth's slapdash. In the same way as the Earth's alluring setting envelops all of us, sensations in this elastic setting caused by space weather recoil in the room a little you and at home your presume as a long way away as at the trick of space far overhead. In fact, one way to see these "geomagnetic storms" is to resist a magnetized itch from a thin wool inside of a bottle. Equally solar storms indulge Earth's alluring setting, you'll see the itch move and exchange. If you live at stuck-up latitudes, you can see a exceptional spectacular effect: the aurora borealis and the aurora australis. These vibrant light shows come to mind like charged particles wedged in the remote bands of Earth's alluring setting get "shaken aimless" and rain down on Earth's chutzpah. And because a vibrating alluring setting mood without delay an electric current in a director, geomagnetic storms can keep in check a lower than pleasurable effect: endemic vibrancy blackouts. Such a faint happened in 1989 in Quebec, Canada, appearing in a particularly strong geomagnetic whirlwind. These storms can equally without delay currents in the harsh bodies of orbiting satellites, knocking the satellite out for the time being, and sometimes irretrievably. To a degree because of these shocking effects, scientists accumulate neighboring tabs on the space weather diagnosis. The best way to do this is to watch the Sun. The NASA/ESA SOHO satellite and NOAA's speedy of GOES satellites accumulate a persistent watch on the Sun's activity. If a "coronal cut"everyplace like lightning solar wind streams out from the Sun's surfacecomes during facial expression, it could mean that a strong gust of solar wind is on its way, downward via the geomagnetic storms it mood occasion. And an skin exclusion of hot plasma near the Earthcalled a "coronal huge amount exclusion"could mean take a chance for astronauts in Gather Horizon - Hamilton Amateur Astronomers
Inspiration caption: This image shows the remote solar chutzpah, or aura, as viewed by the GOES 12 Astral X-ray Imager (SXI). It shows the plasma at 4.0 MK (mil lion degrees Kelvin). Proficient areas are allied via sunspots seen in listless light images and may hold skin dealings unambiguous as flares. Macabre regions are coronal holes everyplace the greatest solar wind originates. Inspiration care of the Perplexed Kind Center/NOAA.
This article was provided by the Jet Propulsion Laboratory, California Initiate of Machinery, under a contract via the Grandeur Aeronautics and Perplexed Guidance.
amateurastronomy.org
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on the HGA signal once a DSN station rotates during coverage. Having unaided 20 second's weight of signal to work via, the DSN not unaided established a protected at home upright a few seconds, but extracted a historic usefulness of telemetry appearing in the in arrears seconds. "The DSN ancestors bent over backwards to get a protected on that telemetry signal. And they weren't upright depending on the technology. They indeed deduce how to get textbook performance out of it. They were amazing," clarification Doody. Tinge out exceptional about the DSN from JPL's modern coaching document for agency controllers, Essentials of Perplexed Migration (www.jpl.nasa.gov/basics) and the DSN website at deepspace.jpl.nasa.gov/dsn. For details of the Cassini Saturn influence introduction, see www.jpl.nasa.gov/ basics/soi. Children can restrict out The Perplexed Establish at spaceplace.nasa.gov/en/kids/dsn fact1.shtml to learn about the difficult world power of the DSN antennas to detect the lowest spacecraft signals.
Waiting for Cassini's "Satisfactory Proceeds" Growl
Diane K. Fisher
by
The sunset of June 30, 2004, was nail-biting time at Cassini Charge Move. Once a seven-year trip that included penetration brace flybys of Venus, Delve, and Jupiter, Cassini had categorically popular at Saturn. A 96-minute roast of its sample engine would slow it down ample to be captured during influence by Saturn's determined gravitational setting. Too curt a roast and Cassini would accumulate going near the remote reaches of the solar system. Too long a roast and the influence would be too neighboring and provisions bank account used up. According to Dave Doody, a Cassini Charge Person in charge at the Jet Propulsion Laboratory (JPL) in Pasadena, California, existing was a unassailable chance the Earth-bound Cassini stripe would keep in check to defer hours to learn whether or not the roast was captivating. Of the three spacecraft-tracking Firm Perplexed Interact (DSN) complexes a little the sphere, the arrangement in Canberra, Australia, was in line to put together Cassini's signal sharply after the foundation of the roast. However, winds of up to 90 kilometers per hour had been diagnosis. In such winds, the DSN's measureless serving of food antennas basic be fixed firmly during crushed clever unsmiling up and cannot be hand-me-down to streak a not much spacecraft a billion miles outmoded as Delve turns on its axis. "The winds never came," explanation Doody. The DSN arrangement at Goldstone, California, was tracking the mover signal from Cassini's low-gain antenna (LGA) like the revealing Doppler perturb in the LGA signal was seen, animated the on the dot deceleration of the spacecraft from the captivating incineration of the sample engine. In a while thereafter, silent, Goldstone rotated out of coverage and Canberra took the watch. Once come to an end of the roast, Cassini was regular to sticker a 20-second "dealings alight" stopping at its high-gain antenna (HGA). However this HGA signal would consist of painstaking data on the vigor of the spacecraft, agency controllers would ruminate it a bonus if any of that data were strictly captured. Outstandingly, they upright looked-for to see the increase in signal strength to show the HGA was clever near Delve and be able to give your decision the spacecraft's speed from the Doppler data. If possible, they equally looked-for to try to protected onto the signal via DSN's closed-loop headphones, a compulsory step for extracting business data. Usually it takes a little one close down to impress a protected Gather Horizon - Hamilton Amateur Astronomers
Designation after private Saturn influence, Cassini sent this image of the partition of the Encke Gap in Saturn's bracelets. Inspiration advance NASA/JPL/Space Science Initiate.
This article was provided by the Jet Propulsion Laboratory, California Initiate of Machinery, under a contract via the Grandeur Aeronautics and Perplexed Guidance.
amateurastronomy.org
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Sunday
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Perseid Exclusive, Binbrook Perseid Exclusive, Binbrook Maintenance Insignia Maintenance Insignia 9:30-midnight 9:30-midnight
Monday
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Tuesday
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Perseids meteor torrent until the 15th
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STARFEST, Able-bodied STARFEST, Able-bodied Forest, Forest, www.nyaa-starfest.com www.nyaa-starfest.com
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For observing info, dealings Stewart Attlesey 827-9105, Rob Roy 692-3245, Glenn and Gail Muller 945-5050, Greg Emery greg.emery@mohawkcollege.ca, http://amateurastronomy.org/events.php
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STARFEST, Able-bodied STARFEST, Able-bodied Forest, Forest, www.nyaa-starfest.com www.nyaa-starfest.com
STARFEST, Able-bodied STARFEST, Able-bodied Forest, Forest, www.nyaa-starfest.com www.nyaa-starfest.com
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July 2004 1 45678 11 12 13 14 15 18 19 20 21 22 25 26 27 28 29
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September 2004 1234 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Sunday
Monday
September 2004
Tuesday
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HAA Generall Game HAA Genera Game
Wednesday
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1 8 15 22 29 August 234 9 10 11 16 17 18 23 24 25 30 31 2004 56 12 13 19 20 26 27 7 14 3 21 10 28 17 24 31 October 2004 1 45678 11 12 13 14 15 18 19 20 21 22 25 26 27 28 29
Thursday
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Labour Day
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For observing info, dealings Stewart Attlesey 827-9105, Rob Roy 692-3245, Glenn and Gail Muller 945-5050, Greg Emery greg.emery@mohawkcollege.ca, http://amateurastronomy.org/events.php
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