Posted on 10/26/2006 9:00:01 PM PDT by NormsRevenge
What had been a modest comet seen only with binoculars or telescopes flared up this week to become visible to the naked eye [images].
Comet Swan, as it is called, is in the western sky after sunset from the Northern Hemisphere. It remains faint, likely not easy to find under bright city lights but pretty simple to spot from the countryside.
It is a "fairly easy naked-eye comet," said Pete Lawrence, who photographed the comet from the UK. "The tail is now showing some interesting features too."
UPDATE: Late Thursday, however, Lawrence reported that the comet already may be getting dimmer. It is not clear what skywatchers should expect of this comet.
Find it
The comet, also catalogued as C/2006 M4, is about halfway up in the sky in the direction of the constellation Corona Borealis [Sky Map].
As with most comets, this one looks like a fuzzy star. It has an interesting green tint, however, indicating it has a lot of the poisonous gas cyanogen and diatomic carbon, astronomers say.
Sam Storch, a long-time sky watcher from Long Island, NY, said the comet appears "quite a bit deeper than any other green I have seen in any sky object, even planetary nebulae."
"Comet Swan is very easy to find," said Joe Rao, SPACE.com's Skywatching Columnist. "In good binoculars it appears as a bright, symmetrical and surprisingly green blob."
Legendary objects
Comets, the stuff of legend and myth, are frozen leftovers of the solar system's formation. Most orbit the Sun out beyond Neptune, but a few wander through the inner solar system now and then. As a comet gets closer to the Sun, solar radiation boils the frozen gases, along with dust, off the comet's surface. Sunlight reflects off this material, creating a head, or coma. Some comets never get very bright. Others brighten dramatically. Some even come unglued as they round the Sun.
Some comets, like Swan, also sport a tail or two. Such detail is best seen with binoculars or a small telescope.
Comet Swan was discovered last year. It makes its closest approach to Earth today. Eventually it will return to the distant reaches of the solar system. Rao said nobody knows how long the comet will grace the night sky.
can you provide a direction?
north, south, south west northeast?
- Look West and not as high as the bright star Vega -
It will be low in the west-northwest. And because the clocks are going back tonight, you won't see it any later than 8:45 PM tomorrow.
As soon as I got home from church, I found this ping waiting for me; thanks. I see it will actually be in the head of Hercules after tonight, according to the star charts posted. Unfortunately I live on the east side of Kentucky's second-largest city, so light pollution is a potential problem. I saw a fuzzy spot or two that could be the comet, but I can't be sure this late. Maybe I will have better viewing conditions tomorrow.
You sure it wasn't the Lunesta butterfly?
Just kidding.....
Astronomy Picture of the Day
NASA | 10/04/06 | Michael Jäger & Gerald Rhemann
Posted on 10/04/2006 9:05:32 PM EDT by sig226
http://www.freerepublic.com/focus/f-chat/1713905/posts
Astronomy Picture of the Day
NASA | 10/19/06 | Andrea Tamanti
Posted on 10/19/2006 8:58:06 PM EDT by sig226
http://www.freerepublic.com/focus/f-chat/1722612/posts
Thanks,
L
My pleasure.
Hopefully I'll be able to see this one.
L
north, south, south west northeast?
Sorry, I've been out of town for the Edwards AFB airshow all weekend. I see that there are some directional links available now. Did you ever spot the comet?
Thanks for the map. I can find Bootes, and if we ever get a clear sky I can find Hercules. Last clear sky was in 1976. Light pollution.
related:
Astronomy Picture of the Day
NASA | 10/04/06 | Michael Jäger & Gerald Rhemann
Posted on 10/04/2006 9:05:32 PM EDT by sig226
http://www.freerepublic.com/focus/f-chat/1713905/posts
Astronomy Picture of the Day
NASA | 10/19/06 | Andrea Tamanti
Posted on 10/19/2006 8:58:06 PM EDT by sig226
http://www.freerepublic.com/focus/f-chat/1722612/posts
Astronomy Picture of the Day
NASA | 11/6/06 | Ray Gralak
Posted on 11/06/2006 9:18:26 PM EST by sig226
http://www.freerepublic.com/focus/f-chat/1733692/posts
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