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June 2, 2004: Want to see the 2004 Transit of Venus? Be prepared to wake up early.
On Tuesday morning, June 8th, for the first time since 1882, Venus will pass directly between Earth and the Sun. For six hours the planet's black silhouette will crawl across the face of our star. It might be a pretty sight, or not. No one can say for sure because no one alive today has seen a transit of Venus.
If you live near the east coast of North America, you can see the crossing. The transit will be underway at dawn and visible for as much as two hours after sunrise.
Before you read the rest of this story, a reminder: Never look at the Sun without eye protection. The early morning Sun rising through the mist, reddened and dimmed by distant clouds, is so tempting; it seems safe to stare. Don't! Even a low-hanging Sun can cause eye damage. Proper transit-watching techniques are discussed below.
The transit begins at 1:13 a.m. EDT (in the middle of the night) and ends at 7:26 a.m. EDT. If you can see the Sun before 7:26 a.m. EDT, then you can see the transit. Sky watchers east of the Mississippi River are favored. The transit will not be visible at all from Mexico, British Columbia and the following US states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Montana, Oregon, Texas, Utah, Washington, Wyoming.
A transit of Venus isn't like a solar eclipse. The Sun won't be blotted out or even noticeably dimmed. Venus is too small; the disk of the planet covers only 0.1% of the Sun.
Although Venus is tiny, you can probably see it without magnification. Try looking through a safe solar filter, for example, #13 or #14 welder's glass or special "eclipse glasses" designed for solar viewing. (Do NOT use stacked sunglasses, metallized candy wrappers or compact disks; these are unsafe filters often recommended in error.) Seen through a good filter, the Sun looks like a glowing disk, about the size of the Moon, marked with a black speck--Venus.
On Tuesday morning, June 8th, for the first time since 1882, Venus will pass directly between Earth and the Sun. For six hours the planet's black silhouette will crawl across the face of our star. It might be a pretty sight, or not. No one can say for sure because no one alive today has seen a transit of Venus.
If you live near the east coast of North America, you can see the crossing. The transit will be underway at dawn and visible for as much as two hours after sunrise.
Before you read the rest of this story, a reminder: Never look at the Sun without eye protection. The early morning Sun rising through the mist, reddened and dimmed by distant clouds, is so tempting; it seems safe to stare. Don't! Even a low-hanging Sun can cause eye damage. Proper transit-watching techniques are discussed below.
The transit begins at 1:13 a.m. EDT (in the middle of the night) and ends at 7:26 a.m. EDT. If you can see the Sun before 7:26 a.m. EDT, then you can see the transit. Sky watchers east of the Mississippi River are favored. The transit will not be visible at all from Mexico, British Columbia and the following US states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Montana, Oregon, Texas, Utah, Washington, Wyoming.
A transit of Venus isn't like a solar eclipse. The Sun won't be blotted out or even noticeably dimmed. Venus is too small; the disk of the planet covers only 0.1% of the Sun.
Although Venus is tiny, you can probably see it without magnification. Try looking through a safe solar filter, for example, #13 or #14 welder's glass or special "eclipse glasses" designed for solar viewing. (Do NOT use stacked sunglasses, metallized candy wrappers or compact disks; these are unsafe filters often recommended in error.) Seen through a good filter, the Sun looks like a glowing disk, about the size of the Moon, marked with a black speck--Venus.
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