Posts Tagged ‘M101’

A bright Supernova for NOT the Oregon Star Party!

September 4, 2011

Well the supernova sure has brightened a lot over the last week!

Supernova in M101, August 25th 2011, about a 3 hr exposure with an 11in scope and 2500 iso on a canon D60.

From the night of the 3rd sept. 1.5hr exposure comprised of 20s unguided exposures (chosen frames) of a cpc1100 with a canon 60d at prime focus (f6.3 reducer).

It now easily outshines the galaxy core and is the brightest thing in the field.

So it turns out one of the reasons I had the Pine Mountain Observatory to myself to do ‘supernova LIVE’  (Sept 1st) was because some of the folks had drifted off to the Oregon Star Party.  I too was advised to go, in part for the great skies of the ochico, and part for the company.

Getting there was a bit of a nightmare in that I set the wrong GPS coordinates (a combination of relatively little sleep the night before, and just drifting along with the scenery).  Either way, by the time I worked it out I was 50 miles down the road, and the GPS kept on trying to send me down dirt roads to nowhere to get back.  The tricky thing about dirt roads, is if they are good, you can get up to 45 mph-ish.  If they are not good, not only will you be doing well to make walking speed, but 10 feet can make the whole thing utterly impassable to a polite little underpowered low clearance suburban car like mine! (or the even more devastating, can get the car stuck!) Thus it was after an hour or so detour down a road that started like a ‘freeway’, then it  narrowed and narrowed and eventually turned into a road where I might as well have been trying to drive down a rough rutted river bed.  I think I did well to survive the turn around! Especially seeing as I was miles in the middle of nowhere by this point, with no apparent traffic on the road!  Eventually I decided to retrace my steps down the black top and do it right!

Thus is was that it was about 5pm by the time I arrived at the Oregon Star Party.  I had a brief exchange with the staff, who insisted on a 75 dollar registration fee.  I told them I was there just to take a look around- ’75 dollars’, that I probably wouldn’t even be there a full day ’75 dollars’, and so it went on.  Just for the record, that would make visiting the Oregon Star Party significantly more expensive than Disneyland, which is some 85 dollars for a day pass.  Apart from the OSP is just a bunch of guys sitting out under the stars ontop of a hill.  Now I was actually interested in talking to some of the vendors they had there, particularly Celestron and Orion (the latter about their crappy capture device on their deep sky video camera), but I was knackered.  So I put up my feet in the car and dozed a bit, trying to recover some strength and in part to work out what to do.  Eventually the organizer came out and said they were ‘locking the gate’ at 7pm.  This was bullshit, there was no gate.  Shit what were they going to do imprison everyone ontop of the hill for the night?.  I got his message thoguh, so at that I rolled back a mile or so down the road and found a place with a good northern horizon and set up the scope.  The ochico is notorious for having a fine dust that gets onto and into everything, including optics, and so I was quite happy to not have folk around disturbing the dust.  Set the scope up on M101 and cooked myself some ‘ramen noodle’ soup type stuff.  Hunger and a bad day are by far the best cooks, and it was the best meal I’ve thus far had on the road, snarfed down with butter and bread! Ahhhh!  Then I basically went to sleep for a few hours till M101 effectively set before packing up the scope.  Skies were, I have to say good!

Next day, I meandered over to the John Day fossil beds.  They were on the map and I had no real idea what the hell it was all about.  Turns out there are some fairly reasonable badlands here, full of fossils.  Regrettably however the fossil museum was an hour down the road in the wrong direction, and a tired thunderf00t wasn’t really up for it.  The sedimentary stuff here coincidentally is from the primitive cascades, and goes back 20 million years!  Yeah, exactly to when the supernova overhead capped off…..ooooooh!

Some of the 'Badlands' near the John Day Fossil Beds Oregon.

Picked up wifi and power at Prineville and processed the acquisitions of the night before, as well as a video of supernova so far.  By that time I had really only enough light in the day to make it back to Pine Mountain, where fortuitously, the deep sky forecast was near perfect!  Plus this really the last chance before the moon becomes a serious issue for a couple of weeks to get a good piccie of the supernova.

On Saturday night on Pine Mountain they do outreach, so I agreed to give them a hand: that night many a person was put into perspective with the Cosmos! 🙂  The odd thing was, all of this was apologetically put into perspective with distance and years in the millions, and of the hundred or so people I talked to, there wasn’t so much of a sign or a peep from anyone expressing the young earth creationist view!

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Supernova in M101, Aug 25th, full processing

August 26, 2011

It’s about a total 3 hr exposure with a 11in CPC1100, using a canon 60d (iso 2500).  30s exposures,  throwing away bad exposures (about 60 %) to yield this using deepskystacker (using about 50 dark frames).  The arrow indicates the supernova.

Supernova in M101, August 25th 2011, about a 3 hr exposure with an 11in scope and 2500 iso on a canon D60.

Clearly an improvement of the first attempt which only included about 12 minutes of ‘sky time.’

Right, now back off to the pass to do the same thing again tonight! Me= CRAZY! :-p

 

-All images available under creative commons license, attribution Thunderf00t 🙂

First look at Supernova in M101 (Aug 2011)

August 26, 2011

First look at Supernova in M101 (Aug 2011)

So after much driving around looking for a good observing sight I eventually found one north of Klamath Falls Oregon (good clear view north).

(‘Klamath Falls’ astronomy site, 25th August 2011)

I then brave the moquitoes, and yeah, there were a LOT of them, to get the scope set up.

The scope acquired data for several hours, this is thus far only processed from 6 minutes worth.  I’ve also not got round to sorting the colors out which is why the new exposure appear blue compared to the old one.

Supernova Watch Live begins tonight!

August 25, 2011

The great thing about time lapse and high speed photography, is they give you a sense of the orders of magnitude of time, from the beat of a humming birds wings (below), to the movement of a distant planet.

However, there really is a limit to the motions you can see, and capture in the heavens on a human time-scale.  The further away things are, the more they have to change for you to be able to see them.  I figured that after sunset on the moon,

the rotation of Jupiter,

and the motion of Uranus and its moons, that was pretty much as far an object as you could look at!

Then this happens:

http://www.astronomerstelegram.org/?read=3581

Yup there is a supernova popping off in a nearby galaxy, M101, which by pure chance I took a picture of last month! and yes, I intend to do the time lapse of a star exploding in another galaxy!

M101, taken on 29th July 2011, with cpc1100 and canon60D (~10min exposure)

Now it should be said that this is a MONSTROUS undertaking.  SNs typically brighten and fade over a period of weeks!  This is all but perfect, arguably a once in lifetime experience.  A potentially bright SN, in a nearby galaxy, near the new moon, when I have the time to spend on it!  We are a few days before the new moon, which means I can get good observations for maybe two weeks, before the moons glare washes the galaxy out.

Supernova Watch Live begins tonight!