Any Impact Visuals?

Started by Ryoung362, 07/04/2005 02:38PM
Posted 07/04/2005 02:38PM Opening Post
Did anyone visually observe the impact last night using optical means (or was I the only one that missed it)?

If so, what were you using and what impression did it make?
Bob
Posted 07/04/2005 03:05PM | Edited 07/04/2005 03:07PM #1
The comet pre-impact was very diffuse with an elusive but still visible nucleus in my 16" dob at medium to higher powers on Friday.

That's what it started out as last night. Post impact, the nucleus brightened considerably making the comet much easier even at very low altitude. The nucleus brightened over a few minutes after impact. I didn't estimate the change but someone I was with estimeted 1.5 magnitudes. The nucleus remained bright until I stopped watching when it got low.

I observed the comet under fair seeing, but dark and transparent skies at Vekol Road, an observing site 50 miles southwest of Phoenix Arizona.
Posted 07/04/2005 09:53PM #2
I too was at Lockwood Valley where Jim was observing.
Same observation, some brightening of the nucleus with a short period where the size seemed larger, lasting 30-60 seconds. After that the nucleus seems somewhat more star like than before and was easier to spot.
Not a big even, but glad I got to see it.

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 07/05/2005 03:53AM #3
Like some of the others whose replies are posted here, I viewed the impact from the LAAS site at Lockwood Valley. A large gang of viewers had shown up. My observations were through my modest 8-inch SCT, using a 15 mm Panoptic eyepiece (135x). I thought I glimpsed the comet before the impact, but that might have been my imagination as I was staring at the spot where I knew the comet to be. The impact itself did not cause any visible spark or flash, but during the minutes following the event the comet did indeed appear to become brighter until it showed me a star-like image just at the lowest limits of visibility for me and my equipment. I don't know how long this increased brightness lasted, as I then slewed the scope eastward to view some of the celestial marvels in Scorpius in dark and transparent skies.

NexStar 8i SCT, Orion 80ED APO refractor, Orion 120 mm EQ refractor, 3.5-inch Questar
Posted 07/05/2005 04:18AM #4
No visual in kansas. In fact i had to get my family to the storm shelter earlier in the evening because to rotation in the wall cloud above my house. Then it never cleared up. Oh well i watched it on nasa tv.
Posted 07/05/2005 06:53AM #5
Looking through the light polluted skies of Berkeley, California, i could not even locate the comet in my Celestron C8. This was clearly an event that needed better seeing conditions.

Rey