In this week's questions show, I explain why I don't think we always need to be realistic, if galaxies in the local group are bound together gravitationally, and what we should call Earth-moving equipment on Mars.
00:20 Be realistic.
04:24 Are galaxies in the local group bound?
05:56 Will gravitational waves give us advanced notice of collisions?
08:36 Will we ever be able to live outside on Mars?
10:16 Are we going to ruin Mars too?
12:42 Mars-moving equipment?
14:07 Could the Moon have an atmosphere?
15:51 Liquid water on the surface of Mars
16:49 Is there a business case for Mars?
19:17 What about nitrogen?
21:21 What will need to come from Earth?
23:06 Are there planets with less gravity than Earth?
Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.
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and possibly a progenitor star (18-24 solar masses!)
http://www.astronomerstelegram.org/?read=3401
Clear skies in Vancouver! Seems like it’s been months … I’m going to try and capture this tonight with one of my crude but fun unguided stacks of 30 second exposures.
See avishay’s post below on where to submit images. Good luck!
Awesome work Ken!!
Aw heck, I imaged the supernova on May 31 but didn’t notice it until after I saw this article. Does that count? 🙂
I got it May 31 at 8:54UT on a Takahashi FS 102.
I got it May 31 at 8:54UT on a Takahashi FS 102.
Ditto. See avishay’s post below.
Sounds like you were just in time. See avishay’s post below.
Unfortunately, no. Lots of discoveries are verified by looking at old images, often the images on glass plates that were taken decades ago. Amateurs also make discoveries while examining images and data from Hubble and other sources well after the images were captured. Discoveries are credited to those who realize they’ve discovered something, figure out what it is, and then make it known.
I would add to Kahn’s post that even if you’re not the first (or second, third…etc.) to discover a particular supernova, having good, documented images of the SN in the days following the outburst can be very important to astronomers studying the light curve of the event.
Even images taken in the hours before the SN event is reported, where no light from the SN is yet visible in your images, can give astronomers an upper limit to the brightness of the event at that time (during the ultra-brief rise time to maximum light). So it makes sense to carefully examine all images of a galaxy with a reported supernova taken before AND after the SN reaches maximum light (….again see avishay’s post below).
(one caveat being that the SN is bright enough at maximum to be well imaged with your camera-scope setup)
At the fourth paragraph, it should be the indefinite article an, not “a”, in the second line: “…, but it will be a easy target…”
How did I miss these type of comments of yours 😀
We get this from a guy who puts numbers in his nick?
Seeing how some have reported this event taking place right around June 1st I for one will remember it as Norma Jeane Baker’s Nova in remembrance of Marilyn Monroe.
I have images that show it happened on May 31, 2011/
See avishay’s post below.
This is a very exciting scientific discovery, to which amateurs can further significantly contribute! We at the Palomar Transient Factory seek more image data of M51 obtained between May 30 and June 2, 2011. So, if you have imaged this galaxy using a telescope and a digital camera, your data may be very useful to this project!
Helpful data would be:
* only if it is of M51 between May 30 and June 2
* only if it is has an accurate time stamp.
In case such data exists, please send the raw images, specify the filter(s) used and if possible send images of the same field taken with the same instrument and telescope before May 30, all to: [email protected] Your help could be crucial for great scientific discoveries! we will not use any data without permission, and will of course credit all useful images.
Many thanks Iair Arcavi and Avishay Gal-Yam (for the PTF)
I don’t see it.
Hi
I take this Nova in 3/6/2001 in M51 . share in facebook.
http://www.facebook.com/photo.php?fbid=2135729192749&set=a.1262146033716.40476.1231666084&type=1&ref=nf