eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
2350 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
4790 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
5490 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
2590 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
ár a könyvön:
Az eredeti ár (könyvre nyomtatott ár), a kiadó által ajánlott fogyasztói ár, amely megegyezik a bolti árral (bolti akció esetét kivéve).
5490 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, abban az esetben az eredeti ár (könyvre nyomtatott ár) az érvényes, kivétel ez alól a boltban akciós könyvek.
ár a könyvön:
Az eredeti ár (könyvre nyomtatott ár), a kiadó által ajánlott fogyasztói ár, amely megegyezik a bolti árral (bolti akció esetét kivéve).
6990 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, abban az esetben az eredeti ár (könyvre nyomtatott ár) az érvényes, kivétel ez alól a boltban akciós könyvek.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
4790 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
focal pointThe Stars in OppositionNicole Gordon looks formeaning in late-night munchiesand the Milky Way.It is after midnight, and I am sitting on an outcrop of volcanic rock at the edge of the sea on the Big Island of Hawaii, munching on trail mix and gazing at the sky. It strikes me that, while...
Adventures in Sidewalk AstronomyKevin Bourque frequently strutsline, asking intelligent questions and expressing their thanks. We talked for a while about astronomy and skateboards and other weighty topics. As they left, I thanked them for being good customers. I sent them off with a heartfelt...
Last Tango in MinneapolisDouglas Aalseth bids farewell to his longtime partner.We knew the end was coming for months. Since 1961, generations of people had come through the doors to see what tire grand old lady in the library could do. OK, maybe her star fields weren't as bright as they once were....
spectrumSituational Awarenesschuckle whenever I'm with someone who notices the Moon up in broad daylight for the first time. The reaction is invariably a mix of surprise and alarm: "What the ? Something's wrong! How can the Moon be up during the day?!" It's not really funny, though it's sad....
The Outreach Imperative recently traveled to the Canary Islands for a conference entitled "Communicating Astronomy." Hosted by the Institute of Astrophysics of the Canaries, the meeting attracted attendees from the Americas, Europe, and Australia. Among them were representatives from many of the...
JIBack to SchoolIt's that time of year when students will (we hope) put down their videogame controllers, pick up their pencils (or laptop computers!), and return to classrooms ready to learn. Teachers will return to those same classrooms ready to teach. But what should they teach? What should...
We're Everywheref an important astronomical event happens anywhere in the night sky at any time a supernova, a lunar occultation, a storm on Saturn it will be observed by readers of this magazine. I can say this with confidence because Sky Telescope has subscribers in 135 countries around the...
My Hero, the TyrantOn my first trip to London 23 years ago, I was wandering through Westminster Abbey when I happened to look down at my feet. The large flagstone on which I stood was inscribed in Latin: Hie deposi-tutu est Quod Mar tale fuit Isaaci Newtotti. Below me the great master lay in...
Sixty Years and Counting Participants on Sky Telescope's tour to Africa for the June 21st total solar eclipse witnessed an unusually lengthy and lustrous "diamond ring" as the last bead of sunlight slipped behind the Moon. How appropriate, as this year marks the diamond anniversary of Sky ...
spectrumNo Time for TimidityAs we reported last month on page 21, Stellafane is under siege by a prison that Vermont proposes to site only a few miles i away. That's the distance of the prison in the picture. Details of the plan are unlcnown perhaps protective full-cutoff lighting to shade the sky...
The Hipparcos FirehoseDuring my first visit to Mount Wilson Observatory, in the late '50s, solar observer Tommy Cragg took me to its library. I remember being blovin away; this kid had never dreamed that so many astronomy books existed!One huge set was labeled "AGK2," and this cryptonym piqued my...
focal pointA Trail to the SkyChristopher Cokinos tries "starpacking" in the Montana wilderness.Some would scoff at hiking just zk miles from ourtrailhead to a tiny Forest Service workstation in Montana's West Pioneer Mountains. But our backpacks were stuffed with a week's worth of food and clothes,...
SpectrumBy the Light of the MoonIn early autumn, as the workday ends, this New Englander begins to twitch when he knows that northerly winds will blow across the face of a nearly full Moon. My anticipation grows as I quickly eat dinner and set up my little spotting scope. Now I'm ready for...
'?ilSSpectrum"Godspeed, John Glenn!"Back into space tie goes this October quintessential American hero 36 years after he rode the Friendship 7 Mercury capsule thrice around the Earth.John Herschel Glenn was the second to make such a trip; he followed the Soviet Union's Yuri Gagarin by 10 months....
SpectrumA Death in the FamilyI once asked a visiting Soviet astronomer about tlie fortunes of a Dr. X, his countryman who I'd met in Prague years before. I described him as wonderfully bright and ambitious, and wondered why he'd dropped out of sight. The deadpan answer was, "Perhaps he was too...
spectrumWmAshes to Ashes A quarter century ago I came to know Gene Shoemaker at a tiny, private meeting at the famous Hotel Pierre in New York City.Sagan was there, Asimov too the coolest guest list I'll ever make up! We had gathered to explore a new way to spark science education in a failing...
Research-oriented amateurs have always had one big edge over professionals time, gobs of it. They can undertake long-duration programs (constantly monitoring a "constant" star) or programs with a high risk of failure (searching for lunar transient phenomena). Professionals with such ideas find a...
spectrumTime Warp-Itl-ÍT'íbaAs my PLANE TOUCHES DOWN AT ISTANBUL'S AtaTORK AiRPORT, I'm struck by the curious world some of us live in. No, it's not a i cultural thing, nor religious, nor political. For people with agendas that stretch far into the future, it's a world of curious time ...
April 1963 10,000th pageSpectrum50,000 Pages and CountingThanks to the staggering arithmetic skills of last summer's editorial intern. Will Dane, we know that this is ST's 50,000th published page. It's a trivial milestone, really, but it gives me another excuse to pontificate.As you learned in the...
On March iith Roger Sinnott sauntered into my office grinning from ear to ear. "This is a first," he burbled, " an exclamation point in an lAU Circular!" Roger was referring to a just-issued statement by Brian Marsden that a mile-wide body called 1997 XF would pass some 29,000 miles from Earth on...
LJspectrumOn to a Third SarosThe Moon's shadow was still racing toward the eastern horizon when my brain inexplicably began to calculate: 1999-1963 = 36; 36/2 =18 = 1 saros cycle. Suddenly 1 realized that I'd been around the eclipse block exactly twice, from Maine in 1963 to Turkey in 1999. It's...