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syzygy
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Reged: 10/06/05
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Loc: Hungary
Massive Stars in Open Cluster Pismis 24
      09/12/07 02:47 AM

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before: qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq after:

Credit: NASA, ESA and J. M. Apellániz (IAA, Spain)

How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just to the right of the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the image left, stars are still forming in the associated emission nebula NGC 6357, including several that appear to be breaking out and illuminating a spectacular cocoon.

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Entire topic
Subject Posted by Posted on
* APOOD - astronomy picture-overlay of the day syzygy 09/03/07 12:53 AM
. * * Re: APOOD - astronomy picture-overlay of the day ChrisHeinz   09/18/08 05:03 PM
. * * Re: APOOD - astronomy picture-overlay of the day syzygy   09/20/08 03:40 AM
. * * Exploring the Ring - Ring Nebula (M57) syzygy   09/18/08 04:30 AM
. * * Star Forming Region NGC 3582 syzygy   04/27/08 11:40 PM
. * * Spiral Galaxy NGC 2841 syzygy   03/31/08 01:21 AM
. * * Different Fur syzygy   02/01/08 09:01 AM
. * * Double Supernova Remnants DEM L316 syzygy   01/15/08 09:58 AM
. * * I'll Have a Blue (Snowball) Christmas with NGC 766 syzygy   12/30/07 03:33 AM
. * * A galaxy and a comet AlbertoConti   01/02/08 02:14 PM
. * * NGC 1531/2: Interacting Galaxies syzygy   12/26/07 06:26 AM
. * * The Race is On, NGC 488 syzygy   12/14/07 08:59 AM
. * * Bend it Like... NGC 134 syzygy   11/15/07 09:18 AM
. * * The Elephant's Trunk in IC 1396 syzygy   10/18/07 10:21 AM
. * * Galaxy NGC 474: Cosmic Blender syzygy   10/08/07 10:04 AM
. * * Under the Milky Way syzygy   10/04/07 09:52 AM
. * * NGC 5315 Planetary nebula syzygy   10/02/07 10:20 AM
. * * NGC 6164: A Bipolar Emission Nebula syzygy   09/14/07 07:31 AM
. * * The Antennae syzygy   09/14/07 06:34 AM
. * * Spiral Galaxy NGC 2403 from Subaru syzygy   09/14/07 06:11 AM
. * * NGC 6888 cosmic bubble and outskirts (2overlays) syzygy   09/14/07 05:52 AM
. * * Re: NGC 6888 cosmic bubble and outskirts (2overlays) Philip_Pugh   10/19/07 12:08 AM
. * * Re: NGC 6888 cosmic bubble and outskirts (2overlays) syzygy   10/19/07 06:28 AM
. * * Horse Head Shaped Reflection Nebula IC 4592 syzygy   09/14/07 04:35 AM
. * * Light from the Heart Nebula syzygy   09/13/07 06:45 AM
. * * Hidden Galaxy IC 342 syzygy   09/13/07 06:26 AM
. * * Reflection Nebulas in Orion syzygy   09/13/07 06:10 AM
. * * IC 4628: The Prawn Nebula syzygy   09/13/07 04:28 AM
. * * Messier 76, "Little Dumbbell Nebula" syzygy   09/13/07 01:41 AM
. * * IC 5070: A Pelican in the Swan syzygy   09/13/07 01:27 AM
. * * IC 5067 in the Pelican Nebula syzygy   10/19/07 06:36 AM
. * * IC 5067 close up syzygy   10/19/07 06:34 AM
. * * NGC 7129 and NGC 7142 syzygy   09/13/07 01:01 AM
. * * NGC 2174: Emission Nebula in Orion syzygy   09/13/07 12:44 AM
. * * IC 2118: The Witch Head Nebula syzygy   09/13/07 12:30 AM
. * * Massive Stars in Open Cluster Pismis 24 syzygy   09/12/07 02:47 AM
. * * NGC 6960: The Witch's Broom Nebula syzygy   09/11/07 03:08 AM
. * * NGC 602 and Beyond syzygy   09/11/07 02:56 AM
. * * Flame Nebula Close-Up syzygy   09/11/07 02:45 AM
. * * Re: APOOD - astronomy picture-overlay of the day Frank4   09/10/07 06:37 PM
. * * Re: APOOD - astronomy picture-overlay of the day syzygy   09/11/07 02:09 AM
. * * Barred Spiral Galaxy NGC 1672 syzygy   09/10/07 08:52 AM
. * * Dust Sculptures in the Rosette Nebula syzygy   09/10/07 08:32 AM
. * * NGC 4449: Close-Up of a Small Galaxy syzygy   09/10/07 08:01 AM
. * * The Lagoon Nebula in Gas, Dust, and Stars syzygy   09/10/07 07:47 AM
. * * Blue Lagoon syzygy   09/14/07 04:20 AM
. * * M81, Bode's Galaxy syzygy   09/10/07 07:05 AM
. * * Bright Galaxy M81 syzygy   09/14/07 04:50 AM
. * * The Orion Belt: Alnitak, Alnilam, Mintaka syzygy   09/09/07 03:37 AM
. * * NGC 7331, The twin of our Milky Way syzygy   09/08/07 05:14 AM
. * * Galaxies in Pegasus syzygy   11/24/07 03:45 AM
. * * NGC 253, Sculptor galaxy (3 overlays) syzygy   09/08/07 04:04 AM
. * * Tentacles of the Tarantula Nebula syzygy   09/03/07 03:52 AM
. * * The Colorful Clouds of Rho Ophiuchi syzygy   09/03/07 12:57 AM


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