Sharpless 2-188 (Sh2-188), an unusual planetary nebula located in the constellation Cassiopeia. The expanding gas from the planetary nebula is colliding with ambient gas in the interstellar medium. The nebula is nearly circular in shape but is much brighter to the southeast (lower left) because the central star is moving rapidly in that direction. Faint wisps of gas can also be seen in the opposite direction.
Gurresta Observatory. November-December 2024. ES102/714, ASI533MC Pro, Optolong LeNhance. 37 hours of integration.
NGC1333 – Embryo Nebula
NGC 1333 is a reflection nebula located in the northern constellation Perseus, positioned next to the southern constellation border with Taurus and Aries. This star-forming region, located roughly 1,000 light-years from Earth, harbors hundreds of newly formed stars less than one million years old. The area is also full of space dust.
Gurresta Observatory. November 2024. RASA8, ASI294MC Pro, Astronomik L2. Almost 23 hours of integration.
Sh2-173 – Phantom of the Opera Nebula
Sh2-173 is an emission nebula lying 8,800 light-years from Earth in the constellation Cassiopeia. It is part of the Perseus arm of our Milky Way Galaxy. Its shape and dark dust clouds bear a resemblance to the mask worn by the Phantom of the Opera.
Gurresta Observatory. November 2024. ES 102/714, ASI533MC Pro, Optolong L-eNhance. 33 hours of integration.
LBN576 – The Popped Balloon Nebula
LBN576 (Abell 85), Popped Balloon Nebula – or as some call it ”Garlic Nebula”, is a very faint oxygen-rich supernova remnant in the constellation of Cassiopeia. The distance from Earth is almost 10,000 light years away.
Gurresta Observatory. October 2024. RASA8, ASI294MC Pro, Idas NBZ. 41 hours of integration.
NGC7538 – Nebula in Cepheus
NGC 7538, near the more famous Bubble Nebula, is located in the constellation Cepheus. It is located about 9,100 light-years from Earth. It is home to the biggest yet discovered protostar which is about 300 times the size of the Solar System.
Gurresta Observatory. October 2024. ES102//14 – ASI533MC Pro – Optolong L-eNhance. 31 hours of integration.
M57 – Ring Nebula
Messier 57 (NGC 6720), the very small Ring Nebula. It is often regarded as the prototype of all planetary nebulae. These objects are the remains of sunlike stars which have blown away their outer envelopes, leaving planet-sized white dwarfs at their centers. It is located in the constellation Lyra and 2.570 light-years from Earth.
Gurresta Observatory. September-October 2024. ES 102/714. ASI533MC Pro. Idas NBZ. 14,5 hours of integration.
NGC6914 – Reflection Nebula in Cygnus
NGC 6914, the blue small area in the middle, is a reflection nebula located approximately 6,000 light-years away in the constellation of Cygnus. It is surrounded by hydrogen alfa gas. Ultraviolet radiation from stars in the Cygnus OB2 association ionize the nebula’s hydrogen.
Gurresta Observatory. October 2024. RASA8, ASI294MC Pro, Optolong L-eNhance. 6 hours of integration.
IC63 – Gamma Cassiopeiae Nebulae (The Ghost of Cassiopeia)
IC 59 and IC 63, two nearby arc-shaped nebulae associated with the extremely luminous star Gamma Cassiopeiae. They are a combination of emission and reflection nebulae and are about 600 light years away from Earth. The nearby (3-4 light-years away) star Navi (or y Cassiopeiae), a variable and multiple hypergiant star, sheds its light over IC 63. The star is aproximately 900 times bigger than our Sun.
Difficult one to process due to the extremely bright star.
Gurresta Observatory. September-October 2024. ES102/714, ASI533MC Pro. Idas NBZ. 23 hours of integration.
LDN1251 – Rotten Fish Nebula
LDN 1251 is a Dark Nebula appearing in the constellation Cepheus. It is 978 light years from our solar system.
Gurresta Observatory. September 2024. ES102/714. ASI533MC Pro. Optolong L-Pro. 24 hours of integration.
NGC7635 – Bubble Nebula
Area between the Cepheus and Cassiopeia constellation with several DSO objects. The Bubble Nebula (11.000 light-years away) is a planetary nebula surrounded by emission gases and the ”bubble” is created by the stellar wind from a massive hot young central star. The Northern Lagoon Nebula (9.100 light-years away) is a bright emission nebula and the Cassiopeia Salt and Pepper cluster (4.500 light years away) is an open star cluster. A smaller open star cluster, the Dormouse Cluster (NGC7510), and another emission nebula (SH 2-159) can also be seen in the image. Both are approximately 10.000 to 11.000 light-years from Earth.
Gurresta Observatory. RASA8, ASI294MC Pro, Idas NBZ. 6,5 hours of integration. September 2024.
LDN768 – Loch Ness Dark Nebula
The Loch Ness monster exists!
Dark nebula in the constellation Vulpecula. What is interesting is that it is the dark area (forming the ’monster’) that is full of gas and hiding the stars.
Gurresta Observatory. 1000 light-years from Earth. 6,5 hours of integration. RASA8, ASI294MC Pro and Astronomik L2 filter. August 2024.
NGC7822
Emission Nebula and two dark nebulae in the constellation of Cepheus. They are some 2.600 light-years from Earth. Gurresta Observatory. February 2024. RASA8, ASI294MC Pro. Idas NBZ. 15 hours of integration.
Sh2-261 – Lower’s Nebula
The Lower’s Nebula (Sh 2-261) is an emission nebula at the outermost edge of the Milky Way galaxy between the Orion and Perseus arms. It is approximately 3.000 light-years from Earth.
Gurresta Observatory. January-February 2024. 9,5 hours of integration.
Sh 2-115 & Sh 2-112 and Sh 2-116
Two emission nebulae (Sh 2-115 and Sh 2-112) and a small planetary nebula (the little bright round thing down to the left – Sh 2-116) surrounded by dark nebulae in the constellation Cygnus. They are located around 7.500 light-years from Earth. Gurresta Observatory. Jan-Feb 2024. 7,5 hours of integration.
Sh2-129 & Ou4 – Flying Bat Nebula and Giant Squid
The Giant Squid Nebula (Ou 4) is a bipolar nebula that is embedded in the giant HII emission nebula Flying Bat Nebula (Sh2-129). It is approximately 10.000 light-years from Earth.
Gurresta Observatory. October 2023. 37 hours of integration.
NGC1514 – Crystal Ball Nebula
The Crystal Ball Nebula (NGC 1514) is a planetary nebula located in the constellation Taurus, near the border with Perseus. It lies at an approximate distance of 2,200 light years (700 parsecs) from Earth. It occupies an area of 2.2 arc minutes.
Planetary nebulae are formed when a star in its final stages expels the outer layers of material. They are illuminated by the ultraviolet light from their central star (or stars if it is a binary system), which makes them glow in various colours. They keep expanding away from the star and ultimately disperse into the surrounding space.
Gurresta Observatory. September-October 2023. 30 hours of integration.
Sh 2-114 – The Flying Dragon
The Flying Dragon in Cygnus. It is a complex and unusual HII emission nebula. Its complex, wispy structure is likely the result of winds from hot, massive stars interacting with the magnetic fields in the interstellar medium. But very little is known about it.
Gurresta Observatory. September-October 2023. RASA8, ASI294MC Pro, Idas NBZ. 13 hours of integration.
LDN1295 – Giraffe Nebula
Dark Nebula appearing in the constellation Cassiopeia. It is 3196 light-years from our solar system. LDN1295 is faint and appears roughly 10.0 x 10.0 arc minutes in size, corresponding to a physical diameter of 9 light-years.
Gurresta Observatory. September 2023. RASA8, ASI294MC Pro, Optolong L-Pro. 12,5 hours of integration.
NGC6992 – Eastern Veil Nebula
The Veil Nebula is a large, relatively faint supernova remnant, 1900 light-years from Earth, in the constellation Cygnus. It is expanding remains of a star that exploded between 5,000 and 8,000 years ago.
Gurresta Observatory. September 2023. RASA8, Idas NBZ, ASI294MC Pro. 8 hours of integration.
Sh 2-155 – Cave Nebula
The Cave Nebula is a faint region of Hydrogen-α emission and surrounding dust in the constellation Cepheus, approximately 2.400 light-years from Earth. It is a dim and very diffuse bright nebula within a larger nebula complex containing emission, reflection, and dark nebulosity.
Gurresta Observatory. April 2023. RASA8, Idas NBZ, ASI294MC Pro. 8 hours of integration.
Barnard 150 – Seahorse Nebula
Dark Nebula appearing in the constellation Cepheus. A dark nebula is a type of interstellar cloud, particularly molecular clouds, that is so dense that it obscures the visible wavelengths of light from objects behind it, such as background stars and emission or reflection nebulae. These clouds are the spawning grounds of stars and planets, as they are formed there.
Gurresta Observatory. April 2023. RAS8, Optolong L-eNhance, ASI294MC Pro. 9,5 hours of integration
NGC1491 – Fossil Footprint Nebula
Emission nebula located in the constellation Perseus. approximately 10.000 light-years from Earth.
Gurresta Observatory. March 2023. SW EQ6-R Pro, RASA8, Idas NBZ, ASI294MC Pro. 9,5 hours of integration.
NGC7822
NGC 7822 is a young star forming complex in the constellation of Cepheus. The younger stars are less than a few million years.
Gurresta Observatory. March 2023. RASA8, Idas NBZ, ASI294MC Pro. 15 hours of integration.
Sh2 136 – Ghost Nebula
The Ghost Nebula is a reflection nebula. It spans over 2 light-years and is located approximately 1,470 light-years away in the constellation Cepheus. The nebula’s dust and gas form eerie-looking figures that resemble ghosts.
Gurresta Observatory. February-March 2023. SW EQ6-R Pro, Explore Scientific 102/714, Optolong L-Pro, ASI533MC Pro. Around 46 hours of integration.
NGC1499 – California Nebula
An emission nebula in the constellation Perseus. It is located some 1800 light-years from Earth.
Gurresta Observatory. February 2023. SW EQ6-R Pro, RASA8, Idas NBZ, ASI294MC Pro. Around 8 hours of integration.
IC443 – Jellyfish Nebula
IC443 – the Jellyfish Nebula – is a galactic supernova remnant in the constellation Gemini. It is located some 5000 light-years from Earth.
Gurresta Observatory. January 2023. SW EQ6-R Pro, RASA8, Idas NBZ, ASI294MC Pro. Just under 6 hours of integration.
IC417 – Spider Nebula and NGC 1931 – Fly Nebula
Spider Nebula and Fly Nebula, two emission and reflection nebulae in the constellation Auriga. They are approximately 10.000 and 7.000 light-years from Earth.
Gurresta Observatory – Bortle 4/5. SW EQ6-R Pro, Celestron RASA8, Idas NBZ, ASI294MC Pro. 10 hours of integration. January 2023.
Sh 2-240 – Spaghetti Nebula
Sh 2-240 – Spaghetti Nebula, a very faint nebula located in the constellation Taurus. It is a huge super nova remnant – approximately 1000 light-years across. It is believed that after its stellar explosion a rapidly spinning neutron star was left behind in the nebula core, emitting a strong radio signal.
Gurresta Observatory – Bortle 4/5. SW EQ6-R Pro, TS APO 61/274 EDPHII, Optolong L-eNhance, ASI294MC Pro. 15 hours of integration over three nights. December 2022.
IC410 – The Tadpole Nebula
The Tadpole Nebula, a HII rich region situated in the constellation Auriga. It is approximately 12.000 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Celestron RASA8, ASI533MC Pro, Idas NBZ. 5 hours of integration. December 2022.
Sh 2-157 – Lobster Claw Nebula
The Lobster Claw Nebula, situated in the constellation Cassiopeia. It is approximately 43.000 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Celestron RASA8, ASI533MC Pro, Idas NBZ. 10 hours of integration. December 2022.
IC1318A -Sadr Region
Another part of the emission nebula surrounding Sadr at the center of Cygnus’s cross in the constellation Cygnus. It is approximately between 2000-5000 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Celestron RASA8, ASI294MC Pro, Idas NBZ. 3 hours of integration. December 2022.
IC1318 – Gamma Cygni Nebula
Emission nebula surrounding Sadr at the center of Cygnus’s cross n the constellation Cygnus. It is approximately between 2000-5000 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Celestron RASA8, ASI294MC Pro, Idas NBZ. 5,5 hours of integration. December 2022.
Sh-2 101 – Tulip Nebula
H II (ionized interstellar atomic hydrogen) emission nebula that is located in the constellation Cygnus It is sometimes also called the Tulip Nebula. It is approximately 6000 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Explore Scientific 102/714 ED CF, F/R 0.8, ASI533MC Pro, Optolong L-eNhance. 13 hours of integration. October 2022.
Sh2-132 – Lion’s Nebula
Bright Nebula appearing in the constellation Cepheus. It is approximately 1800 light-years from Earth.
Gurresta Observatory, Bortle 4 (85% moon). EQ6-R Pro, Explore Scientific 102/714 ED CF, F/R 0.8, ASI533MC Pro, Optolong L-eNhance. 14,5 hours of integration, Hubble palette. September-October 2022.
IC1396 – Elephant’s Trunk Nebula
Concentration of interstellar gas and dust within the much larger ionized gas region in the constellation of Cepheus. It is approximately 2400 light-years from Earth.
Gurresta Observatory, Bortle 4 (full moon). EQ6-R Pro, Celestron RASA8, ASI294MC Pro, Idas NBZ. 5,5 hours of integration. September 2022.
NGC2174 – Monkey Head Nebula
Emission nebula in the constellation Orion. It is approximately 6400 light-years from Earth.
SHO palette is used in post processing, it is how the Hubble Space Telescope interprets OIII, Ha and SII.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Celestron RASA8, ASI294MC Pro, Idas NBZ. 4,75 hours of integration. February 2022.
M78 -Casper the friendly Ghost
Reflection nebula in the constellation Orion. It is approximately 1350 light-years from Earth.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Explore Scientific 102/714 APO ED CF, ASI533MC Pro, TS 0.8 R/F, Optolong L-Pro. 19 hours of integration. February 2022.
NGC7023 – Iris Nebula
Reflection nebula in the constellation Cepehus. It is approximately 1300 light-years from Earth and it’s apparent size is 18 x 18 arc minutes.
Gurresta Observatory, Bortle 4. EQ6-R Pro, Explore Scientific 102/714 APO ED CF, ASI533MC Pro, TS 0.8 R/F, Optolong L-Pro. 11 hours of integration. January 2022.
NGC2264 – Christmas Tree Cluster and Cone Nebula
Emission nebula associated with the larger North American Nebula (located in the constellation Monoceros). It is approximately 2300 light-years from Earth and it’s apparent size is 39 arc minutes.
Gurresta Observatory, Bortle 4. EQ6-R Pro, RASA8, ASI294MC Pro, IDAS NBZ. 120x180s exposures. January 2022.
IC5070 – Pelican Nebula
The Pelican Nebula (IC5070).
Emission nebula associated with the larger North American Nebula (located in the constellation Cygnus), close to Deneb. It is approximately 1800 light-years from Earth and it’s apparent size is 80 x 70 arc minutes.
The Pelican has a particularly active mix of star formation, and jets from HH555 can be seen if you zoom in, just by the ‘neck’ of the Pelican. They are jets from the birth of a proto-star and at the end of the jet is a Herbig-Haro object.
Gurresta Observatory, Bortle 4. EQ6-R Pro, RASA8, ASI294MC Pro, IDAS NBZ. 130x180s exposures. January 2022.
IC434 – Horsehead Nebula and NGC2024 – Flame Nebula
Distance to Earth: 820 light-years. Jan 2021/Jan 2022 – Phnom Penh, Cambodia. Equipment: Skywatcher EQ-6R Pro, RASA8, ASI294MC Pro, IDAS NBZ – Details: 106 x 60s/54 x 120s, Unity gain, -15C (flats, darks, flat darks).
M42 – Orion Nebula
M42 – Orion Nebula
Distance to Earth: 14.000 light-years. Dec 2021. Koh Rong Sanloem/Phnom Penh Cambodia.
Equipment: iOptron GEM26, TS 60/360, ASI53MC Pro, Optolong L-eNhance – Details: 97x 30s + 89x60s + 85x120s, Gain 101, -5C (flats, darks, flat darks).
IC1805 – Heart Nebula
Distance to Earth: 7.500 light-years. Sep-Oct 2020.
Equipment: Skywatcher EQ-6R Pro, Celestron RASA8, ASI294MC Pro, Optolong L-eNhance – Details: 81x180s, Unity gain, -15C (flats, darks, flat darks).
At the bottom of the picture is also IC1795, the Fish Head Nebula.