Comments on: M100, before and after http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/ I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog. Tue, 14 Feb 2012 16:57:32 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Kay http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11925 Kay Tue, 07 Mar 2006 10:46:06 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11925 Love the shots. To my untrained eye even though all the stars appear bigger in the 2002 shot, without seeing anything in the 2002 shot area that can easily be seen as something that would go supernova, I would have just though an object in front of the smaller star had just orbited down in the 2006 shot. Now laugh it's good for the soul. I truly hope someday instead of peeping though scopes you will be able to drive through the universe on your way to work...if and only if mankind has finally reached a point of doing no harm. Love the shots. To my untrained eye even though all the stars appear bigger in the 2002 shot, without seeing anything in the 2002 shot area that can easily be seen as something that would go supernova, I would have just though an object in front of the smaller star had just orbited down in the 2006 shot. Now laugh it’s good for the soul. I truly hope someday instead of peeping though scopes you will be able to drive through the universe on your way to work…if and only if mankind has finally reached a point of doing no harm.

]]> By: RAD http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11914 RAD Sat, 25 Feb 2006 10:35:50 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11914 Tom G now thats the kind of telescope I need! Awesome pic. I hope to have a better telescope soon. Tom G now thats the kind of telescope I need! Awesome pic. I hope to have a better telescope soon.

]]> By: Nigel Depledge http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11913 Nigel Depledge Sat, 25 Feb 2006 09:03:00 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11913 Thanks, Phil, for another good one. Tom, that was a very good image from a light-polluted backyard. Thanks, Phil, for another good one.

Tom, that was a very good image from a light-polluted backyard.

]]> By: Allan Maylis http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11912 Allan Maylis Sat, 25 Feb 2006 07:21:59 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11912 The newest term I have seen at some astron websies is "Hypernova." It is a reference to the very largest stars 100+ solar masses. May we presume the Crab Nebula falls into that newly created category? The newest term I have seen at some astron websies is “Hypernova.” It is a reference to the very largest stars 100+ solar masses. May we presume the Crab Nebula falls into that newly created category?

]]> By: The Bad Astronomer http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11916 The Bad Astronomer Sat, 25 Feb 2006 03:42:09 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11916 Well, there are ltos more, of course, but those are the ones in modern times. There are many supernova remnants in our Galaxy; seen on radio. I do wonder how many there are though! Well, there are ltos more, of course, but those are the ones in modern times. There are many supernova remnants in our Galaxy; seen on radio. I do wonder how many there are though!

]]> By: Peter http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11919 Peter Fri, 24 Feb 2006 23:47:10 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11919 In our galaxy? I think that comes to four, plus another one if you count the Large Magellanic Cloud as our galaxy. We have: 1006, in Puppis 1054, in Taurus (the Crab Nebula supernova) 1572, in Cassiopeia (Tycho's star) 1604, in Ophiuchus (Kepler's star) 1987, in the LMC Slim pickings! In our galaxy? I think that comes to four, plus another one if you count the Large Magellanic Cloud as our galaxy.

We have:

1006, in Puppis
1054, in Taurus (the Crab Nebula supernova)
1572, in Cassiopeia (Tycho’s star)
1604, in Ophiuchus (Kepler’s star)
1987, in the LMC

Slim pickings!

]]> By: TJ http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11924 TJ Fri, 24 Feb 2006 17:16:00 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11924 Thanks Phil. Your explanation is, as usual, thoughtful, insightful, and educational. Anyone know how many supernovae we've seen in our own galaxy? Thanks Phil. Your explanation is, as usual, thoughtful, insightful, and educational. Anyone know how many supernovae we’ve seen in our own galaxy?

]]> By: Tom G. http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11923 Tom G. Fri, 24 Feb 2006 16:59:37 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11923 I captured a shot of the supernova last weekend. I took this image with a 12" Meade LX200 at f/6.3 with a Canon 10D. Autoguided with a piggyback Orion 80ED with a Meade DSI. This was from my light polluted backyard observatory in Renton, WA. (see here) http://www.eastsideastro.org/observatory/galaxies/M100-7Stack-proc.jpg Tom I captured a shot of the supernova last weekend. I took this image with a 12″ Meade LX200 at f/6.3 with a Canon 10D. Autoguided with a piggyback Orion 80ED with a Meade DSI. This was from my light polluted backyard observatory in Renton, WA.

(see here)
http://www.eastsideastro.org/observatory/galaxies/M100-7Stack-proc.jpg

Tom

]]> By: Nathaniel http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11922 Nathaniel Fri, 24 Feb 2006 16:06:31 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11922 Dangit! Wrong galaxy again! Where is the 'type-II-supernova-in-the-milky-way-which-happens-every-40-years-or-so -but-may-actually-be-every-200-years-but-we're-astronomers-so -so-we-can't-be-sure" that we've been promised? SNO is in it's last few months of running.. if you want to catch the neutrinos from the darned thing, it's time to get moving, people! I want everyone to go out, right now, and stomp on your nearest collapsing star. Hrumph. Dangit! Wrong galaxy again! Where is the ‘type-II-supernova-in-the-milky-way-which-happens-every-40-years-or-so
-but-may-actually-be-every-200-years-but-we’re-astronomers-so
-so-we-can’t-be-sure” that we’ve been promised?

SNO is in it’s last few months of running.. if you want to catch the neutrinos from the darned thing, it’s time to get moving, people! I want everyone to go out, right now, and stomp on your nearest collapsing star.

Hrumph.

]]> By: Thomas Siefert http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11921 Thomas Siefert Fri, 24 Feb 2006 15:04:35 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11921 Before and after, boy are you in trouble! Never wash the reds with the whites. :-) Before and after, boy are you in trouble! Never wash the reds with the whites. :-)

]]> By: george http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11920 george Fri, 24 Feb 2006 14:15:28 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11920 Just beautiful. Yeah Spitzer. However, I thought you were going to say it could also be a Type II due to the time difference between the passing of the spiral "wave" and its present location. Just beautiful. Yeah Spitzer.

However, I thought you were going to say it could also be a Type II due to the time difference between the passing of the spiral “wave” and its present location.

]]> By: Chris http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11918 Chris Fri, 24 Feb 2006 13:49:13 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11918 http://www.slooh.com has an online telescope- don't know if they've done any observing of M100 lately, though, as I'm not a member. http://www.slooh.com has an online telescope- don’t know if they’ve done any observing of M100 lately, though, as I’m not a member.

]]> By: Sticks http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11917 Sticks Fri, 24 Feb 2006 09:22:04 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11917 What we need is a webcam tied to a scope. Is there such a set up? What we need is a webcam tied to a scope. Is there such a set up?

]]> By: fjordan http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/comment-page-1/#comment-11915 fjordan Fri, 24 Feb 2006 05:28:31 +0000 http://blogs.discovermagazine.com/badastronomy/2006/02/23/m100-before-and-after/#comment-11915 Man, I wish I could go out and observe this! I have an 8-inch F/5 newtonian with which I used to looked for galaxies and such. However, due to problems with my legs I can't do anymore observing. I saw the Nova in Cygnus in 1975(?), but have yet to see a supernova, and with my 'scope I most likely could see this one. Drat and double drat! Man, I wish I could go out and observe this!
I have an 8-inch F/5 newtonian with which I used to looked for galaxies and such. However, due to problems with my legs I can’t do anymore observing.

I saw the Nova in Cygnus in 1975(?), but have yet to see a supernova, and with my ‘scope I most likely could see this one. Drat and double drat!

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