Rozette Nebula


Description

The Rosette Nebula (also known as Caldwell 49) is a large, spherical (circular in appearance), HII 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 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.

Equipment and processing

Telescope: Orion 8 inch F5

Mount: Orion Atlas

Camera: ST 8300M

Filters: Baader Ha,SII,OIII 7nm

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: bin1 46x600 OIII: bin2 38x600 SII: bin1 41x600

Location: Parsippany,NJ

Monkey Head Nebula


Description

NGC 2174 (also known as Monkey Head Nebula) is an H II emission nebula located in the constellation Orion and is associated with the open star cluster NGC 2175. It is thought to be located about 6,400 light-years away from Earth. The nebula may have formed through hierarchical collapse.

Equipment and processing

Telescope: Orion 8 inch F5

Mount: Orion Atlas

Camera: ST 8300M

Filters: Baader Ha,SII,OIII 7nm

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: bin1 27x600 OIII: bin2 22x600 SII: bin2 8x600

Location: Parsippany,NJ

Heart and Soul Nebulas


Description

Located in the Perseus Arm of the Galaxy, the Heart nebula (left) and the Soul nebula (right) are two bright nebulae (although a telescope is needed to see them) in a region of the Galaxy where a lot of stars are forming. IC 1805 (the Heart nebula) is also sometimes called the 'Running Dog nebula' because it is said to resemble a running dog when viewed through a telescope. The distance to these two nebulae are well determined, mainly because they have star clusters at the centre of them. (It is much easier to determine the distance to a nebula if it has star clusters in it). The Heart and Soul nebulae are located in the Perseus Arm of the Galaxy 6000 and 6500 light years away. This part of the Perseus Arm has a lot of star formation regions and there are many young star clusters in this region.

Equipment and processing

Telescope: 135mm F2.8 lens

Mount: Meade LXD75

Camera: ST 8300M

Filters: Baader Ha,SII,OIII 7nm

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: bin1 20x600 OIII: bin1 20x600 SII: bin1 20x600

Location: Parsippany,NJ

Fish Head Nebula


Description

IC 1795 is also known as a Fish Head Nebula. It's a star forming region in the northern constellation Cassiopeia at distance of about 6000 light years. IC 1795 is a part of the large nebula complex known as IC 1805, the Heart Nebula.

Equipment and processing

Telescope: Orion 8 inch F5

Mount: Orion Atlas

Camera: ST 8300M

Filters: Baader Ha,SII,OIII 7nm

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: bin1 60x600 OIII: bin1 60x600 SII: bin2 50x600

Location: Parsippany,NJ

Pacman Nebula


Description

"NGC 281 is an HII region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

The nebula was discovered in August 1883 by E. E. Barnard, who described it as ""a large faint nebula, very diffuse."" The multiple star HD 5005, also called beta1, was discovered by S. W. Burnham. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 seconds of arc. There has been no appreciable change in this quintuple system since the first measurements were made in 1875."

Equipment and processing

Telescope: Orion 8 inch F5

Mount: Orion Atlas

Camera: ST 8300M

Filters: Baader Ha,SII,OIII 7nm

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: bin1 25x600 OIII: bin2 50x600 SII: bin2 50x600

Location: Parsippany,NJ

Cassiopeia and Cepheus


Description

"This image shows a region between Cassioeia and Cepheus which contains multiple objects.

One the left and slightly below center located Cave Nebula, Sh2-155 or Caldwell 9, a dim and very diffuse bright nebula within a larger nebula complex containing emission, reflection, and dark nebulosity. It is located in the constellation Cepheus.

Visually it is a difficult object, but with adequate exposure, makes a striking image. The nebula gets its name Cave Nebula from the dark lane at the eastern side abutting the brightest curve of emission nebulosity which gives the appearance of a deep cave when seen through a telescope visually

In the center located NGC 7538 which is about 9,100 light-years from Earth. It is home to the biggest yet discovered protostar which is about 300 times the size of our Solar System. It is located in the Perseus Spiral Arm of the Milky Way and is probably part of the Cassiopeia OB2 complex. It is a region of active star formation including several luminous near-IR and far-IR sources

Slightly to the right of NGC 7538 located famous Bubble nebula, also known as NGC 7635, Sharpless 162, or Caldwell 11, which is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The ""bubble"" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.

Below Bubble nebula located Messier 52 (also known as M 52 or NGC 7654) which is an open cluster in the Cassiopeia constellation. It was discovered by Charles Messier in 1774. M52 can be seen from Earth with binoculars.

Due to interstellar absorption of light, the distance to M 52 is uncertain, with estimates ranging between 3,000 and 7,000 light years. One study identified 193 probable members of the cluster, with the brightest member being magnitude 11. Messier 52 is evaluated at about 35 million years old.

Above Bubble nebula located the Claw Nebula, also known as Sh2 -157, which is an emission nebula. It is located on the arm of Perseus and is directly connected with the largest association OB Cassiopeia OB2 . The northern part of the cloud has a ring shape, caused by the action of stellar wind of several giant stars, while the southern sector seems excited by light of the stars of spectral type O."

Equipment and processing

Telescope: 135mm F2.8 lens

Mount: Meade LXD55

Camera: ST 8300M

Filters: Baader HaRGB

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: Ha: Bin1 24x1200, RGB: Bin1 24x120

Location: Hatteras,NC