详解天空望远镜sky amp telescope.pdf
文本预览下载声明
Dusk,June3Dusk,June11–13Du
显示全部
文档详情
相似文档
-
详解天空望远镜sky amp telescope.pdf
S
E
TDoarsMeasureUp?
O
NAresearchteamattheUniversityofpulsarshedscopiousradiation,effective-
California,SanDiego,hascalledintoques-lydrainingspinenergy.Andthelargest
Stiononeoflastyear’sbiggestdiscoveries:SGRflares,liketheoneobservedonAu-
Wtheexistenceofars—neutrongust27,1998,arethoughttooccurwhen
Es
-
讲稿天空望远镜sky amp telescope.pdf
telescopesplus
TheCadillacofTrackingMounts
t’stoobadtheTakahashiTeegulCleverlydesignedandverycompact,thismountforcameras
-
说明天空望远镜sky amp telescope.pdf
giant
eyes
ofthe
future
Ifyouthinktoday’smonstertelescopesarebig...
lookwhat’scomingover
-
课件天空望远镜sky amp telescope.pdf
telescopetechniques
NewtonianBafflingMadeEasy
Homebuiltorcommercial,chancesareyourtelescopecanbenefitfromsimplelthoughitisprobablyless
-
天空与望远镜sky amp telescope.pdf
aniridiumprimer
Iridiumisthefirstofseveralanticipated“Big
LEO”satelliteconstellations.Eachwillcontaina
largenumberoflow-Earth-orbitspacecraft.Sev-
eral,likeIridium,willtransmitdigitizedphone
calls.Othersarebeingdesignedwithwireless
-
文稿天空望远镜sky amp telescope.pdf
AstronomyDay
2001
on’tforget:thisyear’sAs-
tronomyDaywillbeheldon
DSaturday,April28th.Theaimof
thisannualeventistopromotepublic
awarenessand
ByGaryE.Tomlinsoninterestinthe
sciencebyhostingastronomy-relatedac-
tivitiesinurbancenters.
Thisyear,forthefirsttime,Astronomy
Dayhasaspecialtheme:Sun-EarthDay.
-
内容天空望远镜sky amp telescope.pdf
computersinastronomy
R
-
综合天空望远镜sky amp telescope.pdf
NEWSNOTES
TwoWeirdNewPlanetarySystems
AssearchesforextrasolarplanetscontinuetoAlthoughthisisthefirstknowncaseofgiantplanets
expandandlengthenintime,strangenewfindskeepbeingorbitallylinked,orbitalresonancesarecommon
turningup.Theleadingplanethunters,GeoffreyMarcy,inourownsolarsystem.Forinstance,thethre
-
文案天空望远镜sky amp telescope.pdf
-
分析天空望远镜sky amp telescope.pdf
guidetotheeveningsky
May’sMeadowintheSky
Astheseasongrowswarm,aforestofbrightspringtimestarsencirclesaupright“NorthernCross”whenit’sset-
ting.Butnowthatit’srising,itfliespar-
big,dimclearingnearlyoverhead.ByFredSchaafalleltothehorizon.
Shiningbrilliantlyalmostoverhead
meadowinthemiddleoftheow,”let’s
-
课件天空望远镜sky amp telescope.pdf
celestialcalendar
Left:SeeingtheoccultationonJuly17thwillbe
easy—themainissueisknowingwhentolook.
PredictionsforanywhereinNorthAmericacan
bemadebyinterpolatingbetweenthecurves
forVenus’sdisappearance(purple)andreap-
pearance(red)onthisSkyescopemap.The
curvesarelabeledinUniversalTime.Above:
Venusseem
-
内容天空望远镜sky amp telescope.pdf
southernhemisphere’ssky
HeadsUpfortheScorpion
Ifirstglimpsedthe“stellarcity”nearAntaresoydarknightatopMountKaputar.ByGregBryant
henyoutravelfromonesolareclipse,abrightcomet,astarparty,Scorpius’sbrighteststarisAntares,or
hemispheretoanother,familiarorawell-earnedholiday,theconstellation’sAlpha(α)Scorp
-
天空望远镜图像sky amp telescope.pdf
imagesimageandtextby
jayanneenglish
anda.russelltaylor
InterstellarRecyclinginCygnus
Atnumeroussiteswithinthespiralarmsofgalaxieslikeours,hot,short-livedstars
formwhencloudsofinterstellargasanddustcollapse.Inturn,thosemassivestars
heatthesurroundingmedium,onlytoself-destructassupernovaeafterafewmill
-
内容天空望远镜sky amp telescope.pdf
S
K
Y
T
E
L
E
S
C
O
P
EDIDMARSHAVEOCEANS?
DIDMARSHAVEOCEANS?
N
O
V
E
M
B
BLASTFROMTHEPAST:
BLASTFROMTHEPAST:
E
R
1
9ARIZONA’SMETEORCRATER
ARIZONA’SMETEORCRATER
9
9
A
uNOVEMBER1999
g
u
s
t
1
9
9
9
S
o
l
a
r
E
cTHEDAY
l
THEDAY
i
p
s
e
O
c
e
a
nOURSUN
s
OURSUN
o
n
M
a
r
s
?
B
WENT
WENT
i
r
t
h
o
f
M
e
-
天空望远镜图像sky amp telescope.pdf
images
imageby
markmccaughrean,
joãoalves,
hanszinnecker,and
francescopalla
InsidetheOrionNebula
Galileomissedit.PointinghisnewtelescopeatthemiddlestarinOrion’sSword,theone
thatappears“fuzzy”totheunaidedeye,hediscoveredthatit’sactuallyaswarmofstars.If
hisrefractorhadbeenalittlebiggeroralittlter,hemi