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Academy at Rensselaer Education Ctr: Delayed 2 HrsAcademy of the Holy Names: Delayed 2 HrsAchievements & Kids Express Mplwood: Delayed 2 Hrs, no before careAchievements St Kateri Tekakwitha: Delayed 2 HrsAchievements and Kids Express TBGC: Delayed 2 HrsAdirondack Enrichment: Delayed Until 12:30pAesthetic Science Institute: Delayed 2 Hrs, Classes begin at 11 amAlbany Leadership Charter High: Delayed 2 HrsAmbleside School: ClosedAmsterdam City SD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastAmsterdam Head Start: Delayed 2 Hrs, Staff ReportAn Nur Islamic School: Delayed 2 HrsAndes CSD: Delayed 2 HrsArgyle CSD: Delayed 2 HrsArkville Head Start: ClosedAugustine Classical Academy: ClosedAustin's School of Spa Technology: Delayed 2 Hrs, Staff ReportAverill Park CSD: Delayed 2 Hrs, No AM BOCESAverill Park Pre School: Delayed 3 Hrs, No AM Pre-School, No AM PgmBallston Spa CSD: Delayed 2 HrsBattenkill Community Services: Closed, Hockey game still on, will call with timesBennington County Meals: Open, Home delivery delayed Cafe openBerkshire Country Day School: Delayed 2 HrsBerlin CSD: Delayed 2 HrsBerne-Knox-Westerlo CSD: Closed, Offices are closed.Best Fitness (Schenectady): Delayed, No Morning Classes, Club Open No morning classes classes resume 430pBethlehem CSD: Delayed 2 Hrs, No AM BOCESBethlehem Children's School: Delayed 2 HrsBishop Maginn HS: Delayed 2 HrsBluebirds' Nest Preschool: ClosedBroadalbin-Perth CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No Breakfast, No PTECH, AgTECH, TEC-SMARTBrown School: Delayed 2 Hrs, No Morning PLUS ProgramBrunswick (Brittonkill) CSD: Delayed 2 HrsBrunswick Children's Academy: Delayed 2 HrsBurnt Hills-Ballston Lake CSD: Delayed 2 Hrs, No AM BOCES, 2-hour delay (final)Butterfly Dreams Daycare: Delayed 2 Hrs, Opening at 9:30 amCOARC Adult Transportation: Delayed 2 HrsCairo-Durham CSD: ClosedCalvary Preschool: ClosedCanajoharie CSD: Closed, No PM ActivitiesCapital Reg Career & Tech (Albany): Delayed 2 Hrs, No AM BOCESCatholic Central HS: Delayed 2 HrsCatholic Schools Office: Delayed 2 Hrs, Principals Meeting at 10:30Catskill CSD: Delayed 2 Hrs, No AM Pre-KCatskill Mt. Christian Academy: ClosedCenter For Early Learning: ClosedChatham CSD: Delayed 2 HrsChatham Kids Club: Delayed 2 Hrs, Open at 8:30Childhood Friends Inc.: Delayed, We will open at 9:00am for All children today!Christ Our Light Catholic Church: Delayed 2 Hrs, Office opening & Adoration delayed 2 hrs. Morning services cancelledChrist the King Early Childhood Ctr: Delayed 2 Hrs, All programs open @ 9:30 AMChristian Brothers Academy: ClosedCircle Of Friends (Delmar): Delayed 2 Hrs, Wrap around delayed 2 hoursCircle of Friends (Ravena): Delayed 2 Hrs, 2.5 hour class is closed 5 hour classes delayedClifton Park Nursery School: Delayed 1 HrCobleskill Campus Child Care Center: Delayed 2 Hrs, Open at 9AMCobleskill-Richmondville CSD: Closed, Offices Open at 9 a.m.Cohoes City SD: Delayed 2 HrsColonie Youth Centers: Open, No BSPColumbia Christian Academy: Delayed 2 HrsCommunity Library Cobleskill, NY: ClosedCooperstown CSD: Delayed 2 Hrs, No AM BOCESCorinth CSD: Delayed 2 Hrs, No BreakfastCoxsackie-Athens CSD: Delayed 2 Hrs, No AM BOCES, No BreakfastCrossFit Schenectady: Delayed, No Morning ClassesCrossroads Center for Children: Delayed 2 Hrs, Day Care open @ 9:00Crown Point CSD: Delayed 2 HrsDay Nursery (S Glens Falls): Delayed Until 12:35pDelaware Academy CSD at Delhi: Delayed 2 HrsDoane Stuart School: Delayed 2 HrsDolgeville CSD: Closed, No AM BOCES, No BreakfastDoors of Hope: Delayed 1 HrDuanesburg CSD: ClosedEarly Childhood Learning Ctr: Delayed 2 HrsEarly Childhood Education Center: Delayed 2 HrsEarly Childhood Education Ctr-Troy: Delayed 2 HrsEast Greenbush CSD: Delayed 2 HrsEco Baby Daycare & Preschool: Delayed 2 HrsEdinburg Common SD: Delayed 2 HrsExecutive Woods Childcare: Delayed 2 HrsFaith Bible Academy: Delayed 2 HrsFirst Friends Nursery School: Delayed, No AM Program, Enrichment program begins at 1130amFonda-Fultonville CSD: ClosedFort Plain CSD: Closed, Elem recognition breakfast moved to ThursdayFranklin County Technical SD: Delayed 2 HrsFulmont St Johnsville Head Start: Delayed 2 Hrs, Staff ReportFulton County Office for Aging: Open, No Transportation, No Social Adult Day Care No Home Delivered Meals Meal Sites ClosedFulton-Montgomery CC: Delayed 2 Hrs, Campus will open at 10 am.Gabriel Abbott Memorial School: Delayed 2 Hrs, No morning daycareGalway CSD: Delayed 2 HrsGeorge Washington School: Delayed 2 HrsGermantown CSD: Delayed 2 HrsGilboa-Conesville CSD: ClosedGlens Falls City SD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESGlens Falls Common SD: Delayed 2 Hrs, No BreakfastGlens Falls Head Start Center: Delayed 2 HrsGloversville City SD: Delayed 2 HrsGood Ground Christian School: Delayed, No AM Pre-K, Afterschool program onlyGrapeville Christian School: ClosedGreen Island UFSD: Delayed 2 Hrs, No BreakfastGreen Tech High Charter School: Delayed 2 HrsGreenberg Child Care Center: Delayed Until 9:30aGreenbush Child Caring: Open, No AM ProgramGreene County YMCA: Open, No Morning ClassesGreenfield Public Schools: Delayed 2 Hrs, No AM Pre-KGreenville CSD: ClosedGreenwich CSD: Delayed 2 Hrs, No AM BOCESGuilderland CSD: Delayed 2 Hrs, No AM BOCESHFM BOCES Adult Literacy: Delayed, ALZ opens @ 10am GLZ opens @ 10amHFM Career & Tech Center: Delayed 2 HrsHadley-Luzerne CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastHansel & Gretel Nursery School: ClosedHappy Kids Day Care Center: Delayed 2 HrsHawthorne Valley School: Delayed 2 HrsHebrew Academy - Capital District: Delayed 2 HrsHelderberg Christian School: ClosedHelping Hands Pre-School: Delayed, No Morning ClassesHoly Spirit School (East G'Bush): Delayed 2 HrsHometown Health Center: Delayed 2 HrsHoosick Falls CSD: Delayed 2 HrsHope 7 Community Center: Open, 9am-6pm, Reg. After School Food Pantry Open9:30a-11:45Hudson City SD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No Breakfast, No tutoring centerHunter-Tannersville CSD: ClosedIchabod Crane (Kinderhook) CSD: Delayed 2 HrsImmaculate Conception (Glenville): Open, 9:00 am mass cancelledIndian Lake CSD: Delayed 2 Hrs, No AM Pre-K, No BreakfastInlet Common SD: Delayed 2 HrsJefferson CSD: ClosedJohnstown City SD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESJubilee Child Day Care Center: Delayed 2 HrsKid Kampus: Delayed 2 Hrs, Opening at 8:30AMKidsFirst Childcare Center: Delayed 2 HrsKim's Kids Daycare: Delayed 2 Hrs, No BreakfastKingsbury Seventh-day Adventist Sch: Delayed 2 HrsKingston City SD: Delayed 2 Hrs, No AM BOCES, Kingston SD is on a 2 hr delay no AM BOCESLa Salle Institute (Troy): Delayed 2 HrsLakeside Nursery School: Delayed, No AM Pre-SchoolLansingburgh CSD: Delayed 2 Hrs, No Breakfast, Lansingburgh CSD is operating on a 2 hour delayLatham Christian Academy: Delayed 2 Hrs, No AM KLearning To Know Educational Center: Delayed 1-1/2 HrsLexington Center Fulton Co ARC: Open, No TransportationLiberty Ent/ Montgomery Co. ARC: Delayed 2 HrsLife Kids Before/ After School: Open, No AM ProgramLifeSong Inc (Saratoga): Delayed 1 HrLifeSong Inc (Schenectady): Delayed 1 HrLifeSong Inc. (Albany): Delayed 1 HrLifeSong Inc. (Rensselaer): Delayed 1 HrLil' Lambs Christian Daycare Inc.: Delayed 2 HrsLit'l Steps Pre-School: Closed, No AM Pre-KLittle Feet Daycare Center: Delayed 2 HrsLittle Tot Nursery School: Closed, No AM Pre-KLiving Res DCOP (Albany): Delayed 1 HrLiving Res DCOP (Rensselaer): Delayed 1 HrLiving Res DCOP (Saratoga): Delayed 1 HrLiving Res DCOP (Schenectady): Delayed 1 HrLong Lake CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastLoudonville Christian School: Delayed 2 HrsMalta Montessori School: Delayed 2 Hrs, No Toddler Class, No Toddler ClassMargaretville CSD: ClosedMayfield CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastMechanicville City SD: Delayed 2 Hrs, No BreakfastMekeel Christian Academy: Delayed 2 Hrs, No AM Pre-SchoolMenands UFSD: Delayed 2 Hrs, No BreakfastMiddleburgh CSD: ClosedMillbrook CSD: Delayed 2 HrsMohawk Trail Regional SD: Delayed 2 HrsMohonasen CSD: Delayed 2 Hrs, No AM BOCESMontessori School (Schenectady): Delayed, No AM Program, opens at noon, School will open at noon for PM programming.Montgomery County Office for Aging: Delayed 2 Hrs, Advisory Council cancelledMorning Star Learning Center: Delayed 2 Hrs, stay tuned, be safeMother Teresa Academy: Delayed 2 Hrs, No AM Pgm, No am nursery program, School opens at 9:45amMountain Road School: Delayed 2 Hrs, No Before School Care.Mt Moriah Academy: Delayed 2 HrsMyers Education Center: Delayed 2 Hrs, 12 month offices 2 hour delayN. Greenbush Little Red School: Delayed 2 HrsNew Lebanon CSD: Delayed 2 HrsNew Paltz CSD: Delayed 2 HrsNewmeadow at Malta: Delayed 2 HrsNewmeadow at Queensbury: Delayed 2 HrsNiskayuna CSD: Delayed 2 HrsNorth Colonie CSD: Delayed 2 HrsNorthville CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastNotre Dame-Bishop Gibbons: Delayed 2 HrsO.K. Kids, Inc.: Delayed 2 HrsOak Hill School: Delayed 2 HrsOhav Shalom Nursery School: Delayed, No AM Program, No am care for Ohav Shalom school starts at 930 staff report 900 amOnteora CSD: Delayed 2 Hrs, No AM BOCESOppenheim-Ephratah-St Johnsville SD: ClosedOur Lady Queen of Peace (Rotterdam): Open, Faith Formation classes cancelled dut to closing of Schalmont SchoolsOur Lady of Victory Early Childhood: Delayed 2 Hrs, No AM Pre-KOur Savior's Lutheran School: Delayed 2 Hrs, No AM K, No AM Pre-SchoolOur World Montessori: Delayed 2 Hrs, Open at 10:45 a.m.Owen D. Young CSD: Delayed 2 Hrs, No AM BOCESPark Avenue Nursery School: ClosedParsons Early Head Start Day Care: Delayed 2 Hrs, Staff report at 9:00 AMParsons Early Learning Center: Delayed 2 Hrs, Staff report at 9:00 AMPerth Bible Christian Academy: Delayed 2 HrsPine Plains CSD: Delayed 2 Hrs, No AM BOCESPineview Comm Church Pre-School: Delayed 1 Hr, open at 8:30Prospect Center: Delayed 2 HrsPumpkin Patch (Albany): Delayed 2 HrsQueensbury UFSD: Delayed 2 Hrs, No AM BOCESQuestar III BOCES - Sarah's Sisters: Delayed 2 HrsQuestar III Catskill Academy: Delayed 2 HrsQuestar III Columbia-Green Ed Ctr: Delayed, No AM BOCES, 2 HR DelayQuestar III Rensselaer Academy: Delayed 2 HrsQuestar III Rensselaer Edu Ctr: Delayed 2 Hrs, Q3 New Vision is closedQuestar III Sackett Educational Ctr: Delayed 2 HrsRavena-Coeymans-Selkirk CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESRed Hook CSD: Delayed 2 HrsRensselaer City SD: Delayed 2 HrsRhinebeck CSD: Delayed 2 HrsRiverRun Community Montessori: ClosedRoots and Wings Montessori: Delayed 2 Hrs, No before care. Open 9:30Rosa Venerini Early Childhood Cente: Delayed 2 Hrs, No AM Pgm, No am classes or beforecare School opens at 11amRoxbury CSD: Delayed 2 Hrs, No AM Pre-K, RCS is now delayed 2 hrs - roads are in worse shape then expected. Stay off the side roads until treated , drive carefully today January 18Sacred Heart School (Troy): Delayed 2 Hrs, TSL will open at 9:00amSalem CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCES, No BreakfastSaratoga Academy Arts & Science: Delayed 2 HrsSaratoga Bridges: Delayed 1 HrSaratoga Central Catholic HS: Delayed 2 HrsSaratoga County Senior Meals: ClosedSaratoga Independent School: Delayed 2 Hrs, No AM Pre-K, No Before CareSaratoga Springs City SD: Delayed 2 HrsSaugerties CSD: Delayed 2 HrsSchalmont CSD: Closed, Level 1 ClosureSchenectady City SD: Delayed 2 Hrs, No AM Pre-KSchenectady Jewish CC Day Care: Delayed, Opening at 8:30 amSchenevus CSD: ClosedSchodack CSD: Delayed 2 HrsSchoharie CSD: ClosedSchoharie Career and Technical Scho: ClosedSchoharie County ARC: Open, Buses on Snow Routes, Staff report regular time Public bus aides report regular timeSchoharie County Com. Action Prg.: ClosedSchoharie Cty Child Dvp Cobleskill: Closed, No AM Pre-K, No AM Head Start, HS & EHS closedSchoharie Cty HeadStart (Schoharie): Closed, HS & EHS closedSchool's Out, Inc.: Open, No AM ProgramSchuylerville CSD: Delayed 2 Hrs, No AM BOCES, No BreakfastScotia-Glenville CSD: Delayed 2 HrsSharon Springs CSD: ClosedShenendehowa CSD: Delayed 2 Hrs, No AM K, No AM BOCESShooting Stars Nursery & After Sch.: Delayed 2 Hrs, No AM Pre-School, Will open at 9amSkidmore Early Childhood Center: Delayed, No AM Pre-SchoolSouth Colonie CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESSouth Glens Falls CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESSouthern Adirondack Edu Ctr: Delayed 2 Hrs, 12 month offices 2 hour delaySouthern Berkshire Regional SD: ClosedSpa Christian School: Delayed 2 Hrs, No AM K, No AM Pre-KSpotted Zebra Learning Center: Delayed 2 Hrs, SZ opens at 9:30 Program begins at 10:30 K Program begins at 11:00St Ambrose School: Delayed 2 Hrs, No AM PgmSt Anne Institute: Delayed 1-1/2 Hrs, Staff Report, No Trans, No school for day service StudentsSt Clement's Regional Catholic Sch: Delayed 2 Hrs, No AM Pre-K, No AM Pre-SchoolSt Edward's Church: Delayed 2 Hrs, No Mass and morning activitiesSt George's School: Delayed 2 Hrs, No AM Pre-School, AEP will begin at 11 amSt Gregory School: ClosedSt Jude the Apostle School: Delayed 2 HrsSt Kateri Tekakwitha School: Delayed 2 Hrs, No AM Pgm, No BreakfastSt Madeleine Sophie Pre-School: Delayed 2 HrsSt Madeleine Sophie School: Delayed 2 HrsSt Mary's Academy (Hoosick Falls): Delayed 2 HrsSt Mary's Church (Crescent): Delayed, No morning MassSt Mary's Institute ES (Amsterdam): Delayed 2 HrsSt Mary's School (Ballston Spa): Delayed 2 Hrs, No AM Pre-School, Before Care open at 8:00 amSt Mary's School (Waterford): Delayed 2 Hrs, No AM Pre-KSt Mary's-St Alphonsus Rgnl Cath: Delayed 2 Hrs, No Pre-K No AM Camp KerrySt Mary's/St Alphonsus Noah's Ark: Delayed 2 Hrs, Open at 9:45St Paul's Childhood Center: Open, No AM Pre-K, Part-day room closed only. Extended-day rooms open.St Pius X School: Delayed 2 Hrs, No AM Pre-KSt Stephen's Pre-K Acad (Delmar): Closed, No preschool today. After school enrichments are on until further notice.St Thomas the Apostle School: Delayed 2 Hrs, No AM Pre-KStepping Stone Pre & DCC (Albany): Delayed 2 HrsStillwater CSD: Delayed 2 HrsStory Place Preschool: Delayed, Open at 10, before care closedStorybook Academy: ClosedSullivan BOCES: Closed, Offices will open at 10 amSunshine Kids Corner: Delayed 2 Hrs, Opening at 9AMSusan Odell Taylor School: Delayed 2 Hrs, No coffee hourTLC Christian Day Care: Delayed 2 Hrs, No BreakfastTaconic Hills CSD: Delayed 2 HrsTech Valley High School: Closed, Staff report at 10 AM.Temple Israel Nursery and Day Care: Open, No early drop off School starts at 9:00The Albany Academies (AA & AAG): ClosedThe Beagle School: Delayed, No AM Pre-K, No AM Pre-School, All AM programs closedThe Downtown School: Delayed 2 HrsThe Hyde Collection: Delayed 2 HrsThe Kid's Place Preschool: Delayed 1 HrThe King's School: ClosedTiny Tots Early Learning Center: Closed, No AM Pre-School, No AM Preschool PM TBDTri-Village Nursery School: ClosedTroy City SD: Delayed 2 HrsTroy Prep: Delayed 2 HrsTwin Valley Elementary School: Delayed 2 HrsTwin Valley Middle High School: Delayed 2 HrsUMC Daycare Norton Hill: Delayed 1 Hr, No AM Pre-KUnlimited Potential, Inc: Delayed 1 HrUpstate Transit: Delayed 2 HrsVictory Christian Academy: Delayed 2 HrsVoorheesville CSD: Delayed 2 Hrs, No AM BOCES, No BreakfastWSWHE BOCES - Gick Road: Delayed 2 Hrs, 12 moth offices 2 hour delayWWAARC—Albany & Queensbury: Delayed 1 Hr, Staff Report Regular TimeWaldorf School (Saratoga Springs): Delayed 2 Hrs, No 2 day PreKWarren Street Academy - The Bridge: Delayed 2 Hrs, No BreakfastWashington County Nutrition Program: Closed, No Senior Meal Sites ; No Home Delivered MealsWaterford-Halfmoon UFSD: Delayed 2 Hrs, No BreakfastWatervliet City SD: Delayed 2 HrsWebutuck (Northeast) CSD: Delayed 2 HrsWesley Evergreen Adult Day Program: Delayed 2 HrsWest Canada Valley CSD: Delayed 2 Hrs, No AM Pre-K, No AM BOCESWheelerville UFSD: ClosedWhispering Pines (Cobleskill): ClosedWhispering Pines - Schoharie UPK: ClosedWhispering Pines Pre Sc (Amsterdam): Delayed 2 Hrs, No AM Pre-KWhispering Pines Pre-sch (Delanson): ClosedWhispering Pines Presch - Boulevard: Delayed 2 Hrs, No AM Pre-KWhispering Pines Preschool at Meco: Delayed 2 Hrs, No AM Pre-KWilton Baptist Academy: Delayed 2 Hrs, No AM KWindham-Ashland-Jewett CSD: ClosedWonderland Nursery School: ClosedWoodland Hill Montessori School: Delayed 2 Hrs, Delayed 2 hours . No early care. No toddler AM session, delayed 2 hours. No early care. No toddler AM sessionWorcester CSD: ClosedWynantskill UFSD: Delayed 2 HrsYMCA (Bethlehem): Open, No Morning ClassesYMCA (East Greenbush): Open, No Morning Classes, Child Watch opens at 9am, Before School Care 6:45amYMCA (Greater Glenville): Open, No AM classes before noon.. No babysitting before noon.YMCA (Guilderland): Open, No AM Pre-School, No Morning Classes, No AM branch childcareYMCA (Schenectady): Open, No Morning Classes, Child Watch Closed for AMYMCA (Troy): Open, No Morning Classes, Child Watch opens at 9amYMCA Southern Saratoga: Open, No Morning ClassesYWCA of Schenectady Children's Ctrs: Delayed, YWCA child care @SCCC delay Until 8am. WA site delayed Until 9amYWCA of the Greater Capital Region: Delayed 2 Hrs

Science keeps evolving as observations are corrected

Science keeps evolving as observations are corrected

Progress in a scientific field can begin with someone just being curious about some aspect of nature
Science keeps evolving as observations are corrected
This 2006 illustration based on images gathered by the Hubble Space Telescope shows the largest-known Kuiper Belt objects. Xena is slightly larger than Pluto, once considered a planet.
Photographer: NASA

It can be easy to look back over the roughly 3,000-year history of science and astronomy and see where our predecessors made some unfortunate mistakes that delayed the advancement of science.

When long-held beliefs or assumptions were not questioned and rigorous experiments and observations were not carried out, science did not progress. Regrettably, it did not move forward for almost 1,500 years.

Science can be difficult to define. In Latin, scientia means “knowledge” but not all knowledge is science. Further, science tends to be a process characterized by critical thinking and reasoning.

For example, if your flashlight stops working, you might reason that the batteries need to be replaced. If you replace the batteries and the flashlight works, then your reasoning has proved to be correct. However, if the flashlight still does not work, then that observation needs to modify your reasoning: Are the new batteries bad? Is the bulb burned out? Is the switch making contact?

Sometimes we are taught in early science courses about the scientific method — an orderly, logical methodology — that can lead us to think that this is how scientists perform science. In reality, science does not always progress in such a systematic and efficient manner. Progress in a scientific field can begin with someone just being curious about some aspect of nature or questioning the prevailing paradigm — the establish set of ideas.

Question everything

Since the time of the ancient Greeks until Nicholas Copernicus in the 16th century, it was generally accepted that the celestial objects orbit around Earth in perfect circles. Copernicus shifted the paradigm to the sun-centered viewpoint but mistakenly retained the idea of circular orbits.

It took the inspiration of Johannes Kepler during the 17th century, mathematically analyzing the observations of the motion of Mars made by his mentor, Tycho Brahe, to break away from the idea of circular paths to that of out-of-round, elliptical orbits.

When Galileo first pointed his telescope at the night sky, he was being inquisitive; he was not looking for anything in particular. Yet, he found moons around Jupiter, spots on the sun’s surface and mountains on the lunar face. He saw that Venus went through phases and that the Milky Way was populated with stars. These were observations of objects and phenomena that no one suspected, but then needed to be explained.

Technology needed

One of the more subtle reasons the ancient Greeks did not think that Earth went around the sun is that they did not observe something called parallax. If you hold your thumb out at arm’s length and blink your eyes back and forth, you will see that your thumb “jumps” from one side to the other against the background.

The ancient Greeks correctly reasoned that if Earth went around the sun, then after six months when Earth was on the opposite side of its orbit, they should see a shift in the position of the stars. Their reasoning was correct but their technology was not there. The parallax angles that the stars shift through are so small that parallax was not discovered until 1860. It was then that the mathematical physicist and astronomer Karl Frederick Bessel used a telescope and found stellar parallax. This effect cannot be seen by the unaided eye.

In addition, technology led to the reclassification of Pluto and the first working definition of a planet. During the 1990s, a research group of astronomers used one of the world’s largest telescopes and began to find objects beyond Pluto. These objects are called Kuiper Belt objects because they were proposed to exist by Gerard Kuiper, a University of Chicago astronomer during the 1950s. Since these objects are small by astronomical standards and so far away, it took modern, huge, light-collecting telescope “buckets” to find these exceptionally faint objects.

Chance for science

Southwest of the Capital Region during the night of March 19-20, a quick, but very rare astronomy event will occur. The asteroid Erigone (Eh-RIG-uh-nee), will pass directly between the star Regulus, the brightest star of Leo the lion, and Earth. This event can only be seen along a very narrow track on Earth’s surface. For 14 seconds, Regulus will “wink out” as the shadow of Erigone falls on a limited part of Earth. In a sense, it is an eclipse of a distant star; an event astronomers call a stellar occultation.

Although these events are fairly common with faint stars, it has only happened once before with a bright star and coincidentally, that star was Regulus.

The “eclipse” track will move across New York City, then upstate through central New York and finally into Canada. It has been estimated that 20 million people could potentially see this event.

Locally, the asteroid’s shadow will pass southwest of the Albany area. The Landis Arboretum in Esperance, observing spot of the Albany Area Amateur Astronomers, will be near the edge of the shadow line.

It is an opportunity for the nonscientist to make an important observation in astronomy. By carefully timing when Regulus disappears and then reappears, a very precise outline of Erigone can be built up by observers spaced across its shadow corridor, and since we know the distance to this asteroid, its size can be calculated.

Ideally, the best timings come from recording the event with a video camera and placing a very accurate time stamp on each video frame. The same can be done with a DSLR camera in video mode while recording time signals from the shortwave radio station WWV on the camera’s audio track.

Alternatively, just shouting into an audio recorder when you see Regulus disappear and reappear with WWV signals in the background can be helpful. The International Occultation Timing Association will collect these observations for analysis (www.occultations.org/Regulus2014).

The bad news: this event occurs at 2:07 a.m.

Richard Monda is an astronomer living in the Capital Region.

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