wildtexas.com Home

Home
Parks Directory
Wildlife Guides
Travel Reports
Discussion Forums
Your Photos
Web Guide
Shopping
Wild Texas Search

OutsideHub.com Partner
-->
Go Back   Wild Texas Forums: Parks, Travel & Recreation > More Outdoor Activities > Stargazing / Astronomy

Reply

 

LinkBack Thread Tools Search this Thread Display Modes
Old 11-05-2007, 10:56 PM   #1
Founder, WildTexas.com
 
Shannon's Avatar
 
Join Date: Nov 2001
Location: San Antonio, TX
Posts: 1,526
Lightbulb Comet 17P/Holmes

For the full article: CNN

Quote:
A comet that unexpectedly brightened in the last couple of weeks and is now visible to the unaided eye is attracting professional and amateur interest.

Comet 17P/Holmes is seen among the stars of the constellation Perseus in the North-Eastern sky.

The comet is exploding and its coma, a cloud of gas and dust illuminated by the sun, has grown to be bigger than the planet Jupiter. The comet lacks the tail usually associated with such celestial bodies but can be seen in the northern sky, in the constellation Perseus, as a fuzzy spot of light about as bright as the stars in the Big Dipper.
(And more information's available here -- Wikipedia entry)
__________________
- Shannon Moore
Your Host @ WildTexas.com

Purchases in the Wild Texas Gear Shop support our continued operation. Thank you!



Shannon is offline   Reply With Quote
Old 11-05-2007, 11:36 PM   #2
Registered Member
 
campermom's Avatar
 
Join Date: Apr 2006
Location: NE San Antonio
Posts: 404
Re: Comet 17P/Holmes

We were at Perdernales Falls this past weekend and I stayed up to star gaze. In San Antonio, you just can't see the stars well at all. I saw several small shooting stars, but then there was one, on Friday night, it was a golden burst like a bottle rocket, with a tail. Do you think this could be that comet? I was surprised to see any shooting stars at all, but that big one caused me to stay up late again on Saturday. I'm still recovering from lack of sleep.
__________________
Charcoal is a spice, dirt is a condiment, and there is no 3 second rule.
campermom is offline   Reply With Quote
Old 11-06-2007, 12:41 AM   #3
Founder, WildTexas.com
 
Shannon's Avatar
 
Join Date: Nov 2001
Location: San Antonio, TX
Posts: 1,526
Re: Comet 17P/Holmes

I don't think so. I've not seen the comet for myself (San Antonio is definitely not a dark sky viewing locale), but reports say the comet has no tail, and it began brightening between October 23–24, 2007, not in the past several days.

Here's a (public domain, so I'm permitted to copy it here) chart showing where the comet is:

Source: Image:Comet Holmes TLR1.jpg - Wikipedia, the free encyclopedia

Here's another view that may aid in locating it in the sky:


Source: Image:Comet Holmes sky Oct 30 2007.png - Wikipedia, the free encyclopedia
__________________
- Shannon Moore
Your Host @ WildTexas.com

Purchases in the Wild Texas Gear Shop support our continued operation. Thank you!




Last edited by Shannon; 11-06-2007 at 12:51 AM. Reason: added star charts for reference
Shannon is offline   Reply With Quote
Old 11-06-2007, 05:50 PM   #4
Registered Member
 
Troop198's Avatar
 
Join Date: Jul 2007
Location: North Texas
Posts: 534
Re: Comet 17P/Holmes

Maybe Len (Lphilpot) can give us a scoop through his lens
Troop198 is offline   Reply With Quote
Old 11-11-2007, 08:50 PM   #5
Registered Member
 
lphilpot's Avatar
 
Join Date: Jan 2007
Location: Pineville, Louisiana
Posts: 40
Re: Comet 17P/Holmes

I've taken a few looks at it from my driveway, but at the just-concluded Deep South Regional Star Gaze (Deep South Regional Star Gaze) I viewed it in its full glory. Right now, it reminds me very much of a illuminated frosted light bulb, except for the non-circular shape of the trailing edge. There was an apparent elongation of the nucleus a few days ago, and it's still visible to a degree. The shape is something akin to a half-circle and half-square put together, with the square side being slightly blurred, if that makes sense. There's currently no more tail than that, but it's definitely there.

As to seeing the comet from a dark sky, it helps but it's not necessary. Folks are seeing it from New Orleans' street corners, if that's any indication. To the unaided eye, it's a slightly fuzzy star in Perseus. In (even) binoculars, it's glorious. :thumbsup:

Just take a look at the NE sky a couple of hours or so after dark. If your NE horizon is reasonably low, you can look for the distinctive "inverted pentagon" of the constellation Auriga, then move up about 20 degrees or so from the brightest star in the pentagon, Capella. 20 degrees is roughly the distance from the tip of your thumb to little finger with an outstretched hand at arm's length. Take a look at the chart Shannon posted to see what I mean. I don't know what the scale at the bottom of the chart indicates, though. It's in the NE sky, which is between 0 and 90 degrees azimuth... ? Also, at this time of the year, the bowl of the Big Dipper is mostly below the treeline from the southern US.
__________________
Len Philpot
l e n @ p h i l p o t . o r g (no spaces)
><>
lphilpot is offline   Reply With Quote
Old 11-11-2007, 09:13 PM   #6
Registered Member
 
Troop198's Avatar
 
Join Date: Jul 2007
Location: North Texas
Posts: 534
Re: Comet 17P/Holmes

Thanks, how long will it be around? This weekend there is a leonids meteor shower , if sky is clear will all be viewable? But at different times?

StarDate Online | 2007 Meteor Showers and Viewing Tips
Troop198 is offline   Reply With Quote
Old 11-11-2007, 09:41 PM   #7
Registered Member
 
lphilpot's Avatar
 
Join Date: Jan 2007
Location: Pineville, Louisiana
Posts: 40
Re: Comet 17P/Holmes

Quote:
Originally Posted by Troop198 View Post
Thanks, how long will it be around? This weekend there is a leonids meteor shower , if sky is clear will all be viewable? But at different times?

StarDate Online | 2007 Meteor Showers and Viewing Tips

Although I replied privately to a related PM, I'll repeat the content here in case it will help anyone else.

The comet will be visible pretty much all night. While meteors can be observed all night as well (even specific showers such as the Leonids), they're generally better after midnight. This is because the geometry of the the Earth's orbit around the Sun places your location "into the meteoric wind", so to speak, after midnight. Therefore, the rate goes up.
__________________
Len Philpot
l e n @ p h i l p o t . o r g (no spaces)
><>
lphilpot is offline   Reply With Quote
Old 11-18-2007, 07:33 PM   #8
Registered Member
 
Troop198's Avatar
 
Join Date: Jul 2007
Location: North Texas
Posts: 534
Re: Comet 17P/Holmes

We got a great view of the comet out at Lake Tawakani SP this weekend. Clouds ruined any meter shower views. It is worth a look, even with good binoculars.

Last edited by Troop198; 11-18-2007 at 07:34 PM. Reason: add
Troop198 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Rules for this Forum
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads

Thread Thread Starter Forum Replies Last Post
Comet Machholz visible Shannon Stargazing / Astronomy 3 01-09-2005 10:06 PM


All times are GMT -5. The time now is 12:02 AM.


Powered by vBulletin 3.8.3, Copyright © 2009 Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.0