|
|
|
Thread Tools | Display Modes |
#2
|
|||
|
|||
On Thu, 16 Oct 2003 07:36:01 -0400 (EDT), (G=EMC^2
Glazier) wrote: Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert From Burnham's Celestial Handbook: Believed to be a rare case of "slow" novae. Rose to magnitude -0.8 in April 1843. Unique because then the maximum would have lasted 35 years! It is now about magnitude 8, dimmed by the surrounding cloud of material ejected during this last outburst. The expansion velocity of this cloud is about 270 miles per second, one of the highest known. Distanc is about 3700 light years. From me: We now know that Eta Carina is between 7500 - 10 000 light years and that it will end its life in 100 000 years or sooner in a supernovae explosion. The imploding core will then become a black hole. For more info: http://www.seds.org/messier/xtra/ngc/etacar.html Good night! Benoît Morrissette |
#3
|
|||
|
|||
On Thu, 16 Oct 2003 07:36:01 -0400 (EDT), (G=EMC^2
Glazier) wrote: Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert From Burnham's Celestial Handbook: Believed to be a rare case of "slow" novae. Rose to magnitude -0.8 in April 1843. Unique because then the maximum would have lasted 35 years! It is now about magnitude 8, dimmed by the surrounding cloud of material ejected during this last outburst. The expansion velocity of this cloud is about 270 miles per second, one of the highest known. Distanc is about 3700 light years. From me: We now know that Eta Carina is between 7500 - 10 000 light years and that it will end its life in 100 000 years or sooner in a supernovae explosion. The imploding core will then become a black hole. For more info: http://www.seds.org/messier/xtra/ngc/etacar.html Good night! Benoît Morrissette |
#4
|
|||
|
|||
(G=EMC^2 Glazier) wrote in news:1284-3F8E82A1-
: Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. No way. It is currently only about 6th magnitude. It was much brighter for a while after the outburst 150 years ago but faded to naked eye invibility by the 1880's. At its' brightest, it was second only to Sirius in visible magnitude. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? About 8800 ly. Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert Possibly. I keep an eye on it, so I'll let you know if it blows. Llanzlan. |
#5
|
|||
|
|||
(G=EMC^2 Glazier) wrote in news:1284-3F8E82A1-
: Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. No way. It is currently only about 6th magnitude. It was much brighter for a while after the outburst 150 years ago but faded to naked eye invibility by the 1880's. At its' brightest, it was second only to Sirius in visible magnitude. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? About 8800 ly. Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert Possibly. I keep an eye on it, so I'll let you know if it blows. Llanzlan. |
#6
|
|||
|
|||
"G=EMC^2 Glazier" wrote in message ... Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert http://lheawww.gsfc.nasa.gov/users/c...te_lightcurve/ |
#7
|
|||
|
|||
"G=EMC^2 Glazier" wrote in message ... Received this picture in my email this morning taken by the Hubble. It is very interesting. The star is inside two pillows of gas and dust(has the shape of a dumb bell) The caption has the mass as being 100 times that of the sun. That it is one of the brightest stars in the southern sky. That a giant out burst took place about 150 years ago,and, the star survived the blast. Did not say how far this star is from us?? Could this star in a short time implode and produce a blackhole? The picture is very beautiful,and has a lot to say. Bert http://lheawww.gsfc.nasa.gov/users/c...te_lightcurve/ |
#8
|
|||
|
|||
On Fri, 17 Oct 2003 00:07:51 +0100, Benoit Morrissette wrote:
On Thu, 16 Oct 2003 07:36:01 -0400 (EDT), (G=EMC^2 Glazier) wrote: Received this picture in my email this morning taken by the Hubble. From Burnham's Celestial Handbook: Believed to be a rare case of "slow" novae. Rose to magnitude -0.8 in April 1843. Unique because then the maximum would have lasted 35 years! It is now about magnitude 8, dimmed by the surrounding cloud of material ejected during this last outburst. The expansion velocity of this cloud is about 270 miles per second, one of the highest known. Distanc is about 3700 light years. From me: We now know that Eta Carina is between 7500 - 10 000 light years and that it will end its life in 100 000 years or sooner in a supernovae explosion. The imploding core will then become a black hole. For more info: http://www.seds.org/messier/xtra/ngc/etacar.html What happened to the idea that eta Carinae is a binary with a period of 5.5 years ? This theory was floated in 1998 to explain some X-ray observations. Is this still a viable proposition or had it been quashed ? -- Gautam Majumdar Please send e-mails to |
#9
|
|||
|
|||
On Fri, 17 Oct 2003 00:07:51 +0100, Benoit Morrissette wrote:
On Thu, 16 Oct 2003 07:36:01 -0400 (EDT), (G=EMC^2 Glazier) wrote: Received this picture in my email this morning taken by the Hubble. From Burnham's Celestial Handbook: Believed to be a rare case of "slow" novae. Rose to magnitude -0.8 in April 1843. Unique because then the maximum would have lasted 35 years! It is now about magnitude 8, dimmed by the surrounding cloud of material ejected during this last outburst. The expansion velocity of this cloud is about 270 miles per second, one of the highest known. Distanc is about 3700 light years. From me: We now know that Eta Carina is between 7500 - 10 000 light years and that it will end its life in 100 000 years or sooner in a supernovae explosion. The imploding core will then become a black hole. For more info: http://www.seds.org/messier/xtra/ngc/etacar.html What happened to the idea that eta Carinae is a binary with a period of 5.5 years ? This theory was floated in 1998 to explain some X-ray observations. Is this still a viable proposition or had it been quashed ? -- Gautam Majumdar Please send e-mails to |
#10
|
|||
|
|||
do u have the link?
toreah |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Space Calendar - November 26, 2003 | Ron Baalke | History | 2 | November 28th 03 09:21 AM |
Space Calendar - November 26, 2003 | Ron Baalke | Astronomy Misc | 1 | November 28th 03 09:21 AM |
Space Calendar - October 24, 2003 | Ron Baalke | History | 0 | October 24th 03 04:38 PM |
Space Calendar - October 24, 2003 | Ron Baalke | Astronomy Misc | 0 | October 24th 03 04:38 PM |
Space Calendar - September 28, 2003 | Ron Baalke | History | 0 | September 28th 03 08:00 AM |