IC 5146 - Cocoon Nebula

 

IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470.  It shines at magnitude +10.0/+9.3/+7.2.  Its celestial coordinates are RA 21^h 53.5^m , dec +47° 16′. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.

When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.

The above images is made up of 24 subframes 5 minutes each (2 hours) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

IC 1396 - Elephant's Trunk Nebula

 

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the east of IC 1396A. (In the Spitzer Space Telescope view shown, the massive star is just to the left of the edge of the image.) The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.

The Elephant's Trunk Nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.

The combined action of the light from the massive star ionizing and compressing the rim of the cloud, and the wind from the young stars shifting gas from the center outward lead to very high compression in the Elephant's Trunk Nebula. This pressure has triggered the current generation of protostars.

The above images is made up of 24 subframes 10 minutes each ( 4 hours) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

B33 - Horsehead Nebula

 The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. It appears within the southern region of the dense dust cloud known as Lynds 1630, along the edge of the much larger, active star-forming H II region called IC 434.

The Horsehead Nebula is approximately 422 parsecs or 1,375 light-years from Earth. It is one of the most identifiable nebulae because of its resemblance to a horse's head. 

The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory. One of the first descriptions was made by E. E. Barnard, describing it as: "Dark mass, diam. 4′, on nebulous strip extending south from ζ Orionis", cataloguing the dark nebula as Barnard 33.

The above images is made up of 6 subframes 5 minutes each (30 minutes) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

NGC 253 - Sculptor Galaxy

 The Sculptor Galaxy (also known as the Silver Coin, Silver Dollar Galaxy, NGC 253, or Caldwell 65) is an intermediate spiral galaxy in the constellation Sculptor. The Sculptor Galaxy is a starburst galaxy, which means that it is currently undergoing a period of intense star formation.

The galaxy was discovered by Caroline Herschel in 1783 during one of her systematic comet searches. About half a century later, John Herschel observed it using his 18-inch metallic mirror reflector at the Cape of Good Hope. He wrote: "very bright and large (24′ in length); a superb object.... Its light is somewhat streaky, but I see no stars in it except 4 large and one very small one, and these seem not to belong to it, there being many near..."

The above images is made up of 19 subframes 5 minutes each (95 minutes) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

NGC 896 - Heart Nebula

The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787.  It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26 or Melotte 15, contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.

The above images is made up of 16 subframes 10 minutes each (2 2/3 hours) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

 

M74 - Spiral Galaxy

 

Messier 74 (also known as NGC 628 and Phantom Galaxy) is a spiral galaxy in the constellation Pisces. It is at a distance of about 32 million light-years away from Earth. The galaxy contains two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy. The galaxy's low surface brightness makes it the most difficult Messier object for amateur astronomers to observe. However, the relatively large angular size of the galaxy and the galaxy's face-on orientation make it an ideal object for professional astronomers who want to study spiral arm structure and spiral density waves. It is estimated that M74 is home to about 100 billion stars.  M74 was discovered by Pierre Méchain in 1780 then communicated his discovery to Charles Messier, who listed the galaxy in his catalog.

The above images is made up of 28 subframes 5 minutes each (2 1/2 hours) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.

Comet NEOWISE 20200718

 

The above image is made of 75 x 1 minute subframes shot on the night of July 18, 2020 northwest of Gainesville, Texas.  I used my Canon T3i DSLR with 70 to 250mm zoom lens set to 135mm.  Subframes were shot at ASA 1600.  I combine the subframes using AstroArt 7.  

Comet NEOWISE 20200720

 

C/2020 F3 (NEOWISE) or Comet NEOWISE is a long period comet with a near-parabolic orbit discovered on March 27, 2020, by astronomers during the NEOWISE mission of the Wide-field Infrared Survey Explorer (WISE) space telescope. At that time, it was an 18th-magnitude object, located 2 AU (300 million km; 190 million mi) away from the Sun and 1.7 AU (250 million km; 160 million mi) away from Earth.^[3]

NEOWISE is known for being the brightest comet in the northern hemisphere since Comet Hale–Bopp in 1997.^[4] It was widely photographed by professional and amateur observers and was even spotted by people living near city centers and areas with light pollution.^[5] While it was too close to the Sun to be observed at perihelion, it emerged from perihelion around magnitude 0.5 to 1, making it bright enough to be visible to the naked eye.^[6] Under dark skies, it could be seen with the naked eye^[7] and remained visible to the naked eye throughout July 2020.^[8] By July 30, the comet was about magnitude 5,^[9] but binoculars were required near urban areas to locate the comet.

The above image is made from stacking 59x1 minute images shot at ASA 800.  The camera used was a Canon T3i with 55mm lens.   The camera was mounted on a tripod with tracking mount but not the best polar alignment. The images were taken on July 20, 2020 at a location northwest of Gainesville, Texas.  Learned that my DLSR is pretty noisy camera.  Thanks to John Love for processing the images in AstroArt 7 to obtain the above results.

NGC 281 - Packman Nebula - 8/21/2020

 

NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin. A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

Edward Emerson Barnard discovered the nebula in August 1883, describing it as "a large faint nebula, very diffuse." Multiple star 'B 1' or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec. There has been no appreciable change in this quintuple system since the first measures were made in 1875.

The above image is a stack of 11 x 10 minute sub frames.  The images were taken with an AT6RC scope and a Starlight Express camera SXVR-M25C cooled to -5C.  The mount is an Astro Physics AP-900 with CP4 controller. The guide scope is an 80 mm refactor and a Meade DSI camera.  The  images were captured using Astro Art 7and the guiding was done using PHD2.  Calibration and some of the post processing was done in Astro Art 7 and the final processing was completed in Photoshop 5.

M17 - SWAN Nebula or Omega Nebula 8/20/2020

 

M17 know as the Swan Nebula as well as the Omega is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. The total mass of the Omega Nebula is an estimated 800 solar masses.

It is considered one of the brightest and most massive star-forming regions of our galaxy. Its local geometry is similar to the Orion Nebula except that it is viewed edge-on rather than face-on.

The above image is a stack of 30 x 5 minute sub frames.  The images were taken with an AT6RC scope and a Starlight Express camera SXVR-M25C cooled to -5C.  The mount is an Astro Physics AP-900 with CP4 controller. The guide scope is an 80 mm refactor and a Meade DSI camera.  The  images were captured using Astro Art 7and the guiding was done using PHD2.  Calibration and some of the post processing was done in Astro Art 7 and the final processing was completed in Photoshop 5.

Scope Setup at Copper Breaks State Park 8/22/2020

 

This is the first time out under darks skies for my new to me AP900 mount with CP4 controller I acquired in March with a trip to Tucson, AZ.  The imaging scope is an AT6RC and the guide scope is and 80mm refactor.  Imaging camera is a Starlight Express SXVR-M25C.  Guide camera is a Meade DSI.