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Sculptor Galaxy (NGC 253)

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Posts Made By: Linton Rohr

September 15, 2007 01:35 AM Forum: ASTRONOMY

New Mexico fireball

Posted By Linton Rohr

Wow.
From spaceweather dot com...
Linton

NEW MEXICO FIREBALL: On Sept 13th at approximately 3 o'clock in the morning MDT, an extremely bright fireball streaked over New Mexico, "It was terrifying," says eyewitness Susan K. Burgess. "I was stargazing outside my house near Santa Fe when the landscape started becoming very bright, as if a brilliant full moon was quickly rising from the southwest. The fireball itself [slowly moved] over the house and disintegrated with a great deal of scatter in the northwest sky."

At the Sandia National Labs in Albuquerque, a Sentinel all-sky video camera captured the fireball in flight:


Click to view the complete movie.

Based on data from the video, the visual magnitude of the fireball was -14.6, about four times brighter than a full Moon!

"The fireball was a pure emerald green, uncomfortably bright to look at," adds Harald Edens located in the Magdalena Mountains west of Socorro, NM. "The object was disintegrating when I saw it, with pieces parallel-tracking and trailing the fireball. Those smaller pieces had all different colors--most notably red. I think it has been a piece of space junk."

Amateur radio astronomer Thomas Ashcraft not only photographed the fireball, but also recorded echos of a distant radio station bouncing off the meteor's ionized trail: movie. "This fireball turned night into day!" he says.

Stay tuned for updates.


September 18, 2007 05:17 AM Forum: N.A.S.A.

Fasten Your Discovery Seat Belts

Posted By Linton Rohr

A very interestig read about the Discovery project...
http://science.nasa.gov/headlines/y2007/14sep_seatbelts.htm?list964104
Where do I sign up? grin
Linton

September 26, 2007 12:04 AM Forum: Eyepieces

Had to bite the bullet...

Posted By Linton Rohr

...and order a new eyepiece...the Ethos!
I have grown quite accustomed to finding a deal on whatever I want here on Astromart.
But I just can't stand waiting for the Ethos to start showing up for resale here.
That could be quite a while...
I figure I have saved enough money, buying used gear here, to fork some of it over to Anacortes this time.
At least I know I'll get the TeleVue sticker with this one! wink
Linton

October 4, 2007 01:46 AM Forum: Landscape Photography

Autumn in Utah

Posted By Linton Rohr

Took another trip up to Utah about 10 days ago.
This time we explored autumn colors in the Wasatch Mountains.
Hope you enjoy...
Linton

Aspens and maples along the Mt. Nebo loop...

October 9, 2007 04:30 AM Forum: Reflectors

My "new" Astroscan

Posted By Linton Rohr

Well, it's about 35 years too late, but I just picked up
an Astroscan, partly out of curiousity and partly just for fun. grin
And fun I had, scanning around the sky Friday night,
cruising through the Milky Way at low power.
I don't think they intended it to be used with high end EP's,
but my 19mm Panoptic was great at 23x, and a 9mm Nagler provided a nice, wide 49x.
I'm not sure how much higher it could go.
Hardly the optical quality I'm accustomed to,
but I sure wish I'd had one of these in my younger days!
I think I'll take it along to a dark sky site soon.
Might be cool to have at public star parties, too. smile
Linton

October 19, 2007 01:00 AM Forum: Eyepieces

First Ethos on Astromart

Posted By Linton Rohr

Well, I couldn't help but notice the first Ethos for sale on Astromart on Tuesday. shocked
I had been wondering how long it would be before they started showing up.
4 weeks and 6 days, by my reckoning. I wonder if many others will follow.
I couldn't stand the wait and broke down and bought a new one.
I've only had one good outing with it, but I'm pretty impressed so far.
Can't imagine ever selling it, let alone so soon.
Favorite object so far? M11. Wow! And the M42 trapezium. smile
More reports to follow...
Linton

October 29, 2007 01:30 AM Forum: Digital SLR AstroPhotography

Canon EOS UltraWide 2" Prime Focus Adapter

Posted By Linton Rohr

Have any of you Canon owners tried out one of these?
I've got a 20D and am thinking this looks like a good idea.
I am a visual observer, and my interest in astrophotography
is primarily in viewing yours! grin
I'm trying to do some very casual stuff though.
I've been shooting through an old TeleVue eyepiece projection adapter.
But without an eyepiece, just straight through my TV-85.
I'm also wondering if this might let me come to focus in my Starmaster,
as I have not been able to do so through the TV unit.
I'd appreciate any advice anyone has to offer.
Linton

December 24, 2007 02:18 AM Forum: Reflectors

10" Starmaster

Posted By Linton Rohr

Howdy folks.
I just brought home another Starmaster today. A lightly used 10" hybrid.
I have been very, very happy with my 14.5" version. grin
I have another 10" Zambuto mirror, but it's in another maker's structure.
The optics will be pretty much the same, but I think I'll be much happier with this scope.
More to follow...
Linton

December 24, 2007 02:31 AM Forum: Solar System Observing

Comet Holmes from southern Utah

Posted By Linton Rohr

I made another trip up to southern Utah last week end,
and was surprised to see Comet Holmes naked eye, quite easily.
I have not been viewing it lately, from here in L.A.,
since it has faded quite a bit and become less impressive.
What a difference really dark sky makes!
I showed it to a future neighbor, along with a handful of other objects in my TV-85.
Temperature was in the single digits though, so we kept it brief! grin
Linton

December 24, 2007 02:41 AM Forum: Eyepieces

EP's for Starblast?

Posted By Linton Rohr

Hi folks.
My niece will be unwrapping a Starblast on Christmas morning grin ,
and I'd like to get her a couple better EP's sometime soon.
The f/4 450mm f.l. scope comes with a 6mm and 17mm Explorer II eyepieces.
I'm wondering if anyone can recommend anything economical in a wide field format.
I don't think she's quite ready for a set of Naglers just yet. wink
I have a couple ideas from searching the archives,
but any suggestions would be much appreciated.
Linton