Into the Rosette Nebula
The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.
The complex has the following NGC designations:
NGC 2237 – Part of the nebulous region (Also used to denote whole nebula)
NGC 2238 – Part of the nebulous region
NGC 2239 – Part of the nebulous region (Discovered by John Herschel)
NGC 2244 – The open cluster within the nebula (Discovered by John Flamsteed in 1690)
NGC 2246 – Part of the nebulous region
The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 50 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.
It is believed that stellar winds from a group of O and B stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.
A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3 minutes each
ISO: 1600
Number of Stacked Images: 140
Number of Dark Frames: 20
Number of Bias Frames: 20
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 02/19/2015 9:30 PM
The complex has the following NGC designations:
NGC 2237 – Part of the nebulous region (Also used to denote whole nebula)
NGC 2238 – Part of the nebulous region
NGC 2239 – Part of the nebulous region (Discovered by John Herschel)
NGC 2244 – The open cluster within the nebula (Discovered by John Flamsteed in 1690)
NGC 2246 – Part of the nebulous region
The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 50 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.
It is believed that stellar winds from a group of O and B stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.
A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3 minutes each
ISO: 1600
Number of Stacked Images: 140
Number of Dark Frames: 20
Number of Bias Frames: 20
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 02/19/2015 9:30 PM
Details and picture from Tom Pickett
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R Leporis
R Leporis is actually the reddest star in the Milky Way Galaxy
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Astrophotographer Shreenivasan Manievannan captured this photo of the Milky Way arching over a rock arch in Joshua Tree National Park, California.
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M101 The Pinwheel Galaxy
This beautiful image is captured by my friend Tom Pickett.
"Hi Everyone.. I hope you are having a good day...
smile emoticon
Here is a old image of M101, The Pinwheel Galaxy, I shot back in 3/24/2015, this one is without the star spikes and I have cropped it a little so it looks larger in the frame, I hope you like it.. smile emoticon
I plan to revisit this target as soon as it up in the shy.. to add more data. I started learning my camera at this time and now I have a few better techniques of capturing this image so im going to try it.
Have a good day and clear skies.
Details
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away in the constellation Ursa Major, first discovered by Pierre Méchain on March 27, 1781, and communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3 Minutes each
ISO: 1600
Number of Stacked Images: 28
Number of Dark Frames: 28
Number of Bias Frames: 28
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 3/24/2015 12:32:23 AM"
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M31- The Andromeda Galaxy
The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way, our galaxy. Andromeda is sometimes called M31 or NGC 324 by astronomers. It is about 2.6 million light years away from us.
Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, Andromeda may not be the most massive. Recent findings suggest that the Milky Way contains more dark matter and may be the most massive in the grouping.
The 2006 observations by the Spitzer Space Telescope revealed that M31 contains a trillion stars (1012). This is more than the number of stars in our own galaxy, which is estimated to be c. 200-400 billion.
Andromeda is estimated to be 7.1×1011 solar masses. In comparison, a 2009 study estimated that the Milky Way and Andromeda are about equal in mass, while a 2006 study put the mass of the Milky Way at ~80% of the mass of Andromeda.
At an apparent magnitude of 3.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects, making it visible to the naked eye on moonless nights even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye. Being both large and bright, it is one of the farthest objects that can be seen without a telescope or binoculars.
The Andromeda Galaxy is approaching the Milky Way at about 100 to 140 kilometers per second (62 to 87 mi/s), so it is one of the few blue-shifted galaxies. The Andromeda Galaxy and the Milky Way are thus expected to collide in perhaps 4.5 billion years. A likely outcome of the collision is that the galaxies will merge to form a giant elliptical galaxy. Such events are frequent among the galaxies in galaxy groups.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3.5 Minutes (210 Seconds) Each
ISO: 1600
Number of Stacked Images: 161
Number of Dark Frames: 85
Number of Bias Frames: 45
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 11/3/2015 10:05:21 PM
Image is from Tom Pickett
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M45 The Pleiades Cluster
In astronomy, the Pleiades (/ˈplaɪ.ədiːz/ or /ˈpliː.ədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The celestial entity has several meanings in different cultures and traditions.
The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon EF 75-300mm set at 150mm F5.0
Exposure: 2 Minutes (120 Seconds) Each
ISO: 3200
Number of Stacked Images: 79
Number of Dark Frames: 20
Number of Bias Frames: 20
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 11/11/2015 11:33:11 PM
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M101 The Pinwheel Galaxy
This beautiful image is captured by my friend Tom Pickett.
"Hi Everyone.. I hope you are having a good day...
smile emoticon
Here is a old image of M101, The Pinwheel Galaxy, I shot back in 3/24/2015, this one is without the star spikes and I have cropped it a little so it looks larger in the frame, I hope you like it.. smile emoticon
I plan to revisit this target as soon as it up in the shy.. to add more data. I started learning my camera at this time and now I have a few better techniques of capturing this image so im going to try it.
Have a good day and clear skies.
Details
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away in the constellation Ursa Major, first discovered by Pierre Méchain on March 27, 1781, and communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3 Minutes each
ISO: 1600
Number of Stacked Images: 28
Number of Dark Frames: 28
Number of Bias Frames: 28
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 3/24/2015 12:32:23 AM"
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M31- The Andromeda Galaxy
The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way, our galaxy. Andromeda is sometimes called M31 or NGC 324 by astronomers. It is about 2.6 million light years away from us.
Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, Andromeda may not be the most massive. Recent findings suggest that the Milky Way contains more dark matter and may be the most massive in the grouping.
The 2006 observations by the Spitzer Space Telescope revealed that M31 contains a trillion stars (1012). This is more than the number of stars in our own galaxy, which is estimated to be c. 200-400 billion.
Andromeda is estimated to be 7.1×1011 solar masses. In comparison, a 2009 study estimated that the Milky Way and Andromeda are about equal in mass, while a 2006 study put the mass of the Milky Way at ~80% of the mass of Andromeda.
At an apparent magnitude of 3.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects, making it visible to the naked eye on moonless nights even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye. Being both large and bright, it is one of the farthest objects that can be seen without a telescope or binoculars.
The Andromeda Galaxy is approaching the Milky Way at about 100 to 140 kilometers per second (62 to 87 mi/s), so it is one of the few blue-shifted galaxies. The Andromeda Galaxy and the Milky Way are thus expected to collide in perhaps 4.5 billion years. A likely outcome of the collision is that the galaxies will merge to form a giant elliptical galaxy. Such events are frequent among the galaxies in galaxy groups.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3.5 Minutes (210 Seconds) Each
ISO: 1600
Number of Stacked Images: 161
Number of Dark Frames: 85
Number of Bias Frames: 45
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 11/3/2015 10:05:21 PM
Image is from Tom Pickett
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M45 The Pleiades Cluster
In astronomy, the Pleiades (/ˈplaɪ.ədiːz/ or /ˈpliː.ədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The celestial entity has several meanings in different cultures and traditions.
The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.
Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon EF 75-300mm set at 150mm F5.0
Exposure: 2 Minutes (120 Seconds) Each
ISO: 3200
Number of Stacked Images: 79
Number of Dark Frames: 20
Number of Bias Frames: 20
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 11/11/2015 11:33:11 PM
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