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The larger galaxy, dubbed the "Death Star Galaxy," has a black hole-generated energetic jet aimed at its companion galaxy. This is the first observation of its kind. (https://de.wikipedia.org/wiki/3C_321)
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Stephanh, CC BY-SA 4.0, via Wikimedia Commons
To the left the large bright nebula is the Flame Nebula NGC 2024.
To the left of it is vdB 51 and again above it is vdB 50.
Through the large emission nebula IC 434 the Horsehead Nebula (Barnard 33) becomes visible.
Directly to the left of the Horsehead Nebula the blue reflection nebula is NGC 2023.
Below the Horsehead Nebula is vdB 57.
Hypatia Alexandria from Santa Fe, CC BY 2.0, via Wikimedia Commons
The Pipe stem is composed of the dark nebulae Barnard 59, 65-67 (LDN 1773).
The bowl is Barnard 78 (LDN 42).
en:user:Friendlystar, CC BY 3.0, via Wikimedia Commons
The slightly larger dark molecular cloud to the right is Barnard 68.
Diagonally to the left below, the middle molecular cloud is Barnard 69.
Again to the left of that, the again slightly larger molecular cloud is Barnard 70.
And at the very bottom of the edge, the dark molecular cloud Barnard 74 can still be seen.
pcs34560, Public domain, via Wikimedia Commons, added lines
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NASA/STScI, Public domain, via Wikimedia Commons
Cygnus A is largest known radio galaxy.
Cygnus X-1 is the first black hole detected. (https://de.wikipedia.org/wiki/Cygnus_X-1)
On the far left is M52.
Below on the right is the star cluster Czernik 43.
In the upper right is the Bubble Nebula NGC 7635.
The bright star is Gamma Muscae.
The dark cloud is the Dark_Doodad_Nebula.
This group of five galaxies is called the Deer Lick Group.
Diagonally to the lower left comes NGC 7335.
To the left of it the small galaxy is NGC 7336.
Vertically below NGC 7331 (galaxy in center) is small galaxy is NGC 7337.
Centered on the lower left edge is NGC 7340.
UGC 10822 is a satellite galaxy of the Milky Way with about three million stars.
In the far lower right you can still see NGC 6338.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
At 1 Kelvin, the nebula is the coldest place in space measured so far. The low temperature arises because the gas is moving away from the star at extreme speed. The expansion leads to a lowering of the temperature. (https://de.wikipedia.org/wiki/Bumerangnebel)
NASA, ESA, and S. Farrell (University of Sydney, Australia and University of Leicester, UK), CC BY 4.0
The circled point is a black hole, which is not in the center of the main galaxy. It is probably the center of a dwarf galaxy left over from a collision. (https://esahubble.org/images/heic1203a/)
The large galaxy on the right is ESO 350-40 (PGC 2248).
The two galaxies next to it are PGC 2249 (upper) and PGC 2252 (lower).
Directly in the center of the image is vdB 126.
To the right of the reflection nebula is LBN 134.
The dark cloud is fondly called Fleeing Brontosaurus. It consists of several sections (LDN 767 - LDN 769, LDN 772 - LDN 775).
ESO/H. Boffin, CC BY 2.0, via Wikimedia Commons, Original-Link
Martin Bernardi, CC BY-SA 4.0, via Wikimedia Commons
At the upper right of the cloud NGC 2070 (Tarantula Nebula) can be seen.
The four galaxies form the Grus Quartet. It consists of NGC 7552 (right edge of image), NGC 7582 (center of image), NGC 7590 (small galaxy at the bottom) and NGC 7599 (far left).
The LBN 468 nebula complex consists of several dark nebulae:
The lower region LDN 1147 with the two dark bands LDN 1148.
The dark complete left area LDN 1158
The middle upper area LDN 1157
The upper right area LDN 1152
To the left at the top of the nebular region is another reflection nebula known as Gyulbudaghian's Nebula (GM 1-29).
The large galaxy is IC 2497.
The galaxy to its left is SDSS J094106.78+344356.7.
The green nebula area (produced by oxygen) is Hanny's Voorwerp (Hanny's Object).
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
On the upper left is the planetary nebula Heckathorn-Fesen-Gull 1.
On the lower right is Abell 6.
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The very bright star FG Sagittae is responsible for the nebula, which is gradually shedding its envelopes.
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Judy Schmidt, CC BY 2.0, via Wikimedia Commons
ESO, CC BY 4.0, via Wikimedia Commons, Original-Link
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NASA, ESA, B. Balick (University of Washington), M. Guerrero (Instituto de Astrofi?sica de Andaluci?a), and G. Ramos-Larios (Universidad de Guadalajara), CC BY 4.0
The Stingray Nebula is the youngest planetary nebula discovered to date. (https://de.wikipedia.org/wiki/Stingray-Nebel)
The name comes from its resemblance to the stingray. However, due to its unusually rapid shape change within the last 20 years, it has since lost its ray resemblance. (https://www.spektrum.de/news/hubble-aufnahmen-planetarischer-nebel-verblasst-extrem-rasant/1804658)
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA), CC BY 4.0
In the optical range, a normal elliptical galaxy can be seen. In the radio range, however, giant plasma jets become visible, presumably generated by the presence of a central black hole with 4 billion solar masses (1000 times the mass of the Milky Way). (https://de.wikipedia.org/wiki/Hercules_A)
Adam Block/Mount Lemmon SkyCenter/University of Arizona, CC BY-SA 4.0, via Wikimedia Commons
The blue nebula in the image belongs to NGC 3372 (Carina Nebula).
The bright star is Eta Carinae around which is the Homunculus Nebula.
To the right of Eta Carinae is the Keyhole Nebula (the large dark cloud) and directly to the right center of it is the nebula "Defiant Finger" / "God's Birdie" / "The Finger of God"."
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Bruce Balick (University of Washington), Vincent Icke (Leiden University, The Netherlands), Garrelt Mellema (Stockholm University), and NASA/ESA, CC BY 4.0
NASA on The Commons, No restrictions, via Wikimedia Commons
The HUDF is a square capturing 2.4'x2.4' in size.
The image section includes about 10,000 galaxies.
The 10 largest galaxies still visible here are:
UDF 7556 (center left edge - blue spiral galaxy)
UDF 4527 (centered lower edge - yellow galaxy)
UDF 2322 (diagonally on the way to the lower right corner)
UDF 3677 (bright yellow galaxy centered right)
UDF 6206 (galaxy exactly in the center)
UDF 6747 (left of the center galaxy)
UDF 9264, UDF 9204, UDF 7688, UDF 8585 (four galaxies above from left to right)
It is not yet confirmed to be a planetary nebula.
Judy Schmidt from Fresh Meadows, NY, USA, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Sun Kwok and Kate Su (University of Calgary), Bruce Hrivnak (Valparaiso University), and NASA/ESA, CC BY 4.0
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Peje1873, CC BY-SA 4.0, via Wikimedia Commons
Wikiletman, CC BY-SA 4.0, via Wikimedia Commons
In the upper right is the Bubble Nebula NGC 7635.
The Kemble Cascade passes obliquely through the image once.
At the bottom of the asterism is NGC 1502.
Sebastian Täubert, CC BY-NC-SA 4.0
ESO, CC BY 4.0, via Wikimedia Commons, Original-Link
Even though IC 2177 is called the Gull Nebula, IC 2177 is not the complete nebula, but only the head, with the bright star HD 53367 in the center.
The wings are the nebula Sh2-296.
Just to the right of the head is very small planetary nebula PK 223-2.1.
Below it are the two nebulae Sh2-293 (the larger one) and Sh2-295 (the smaller one).
To the left of the two small nebulae, in the dark indentation in the wing, is the reflection nebula NGC 2327. Directly below it the cluster of stars with nebula is vdB 92.
To the left of it in the blue area near the bright stars is vdB 95.
Down at the wing tip, the bright yellow nebula, is Sh2-297.
At the upper wing (upper edge of the yellow nebula), is the star cluster NGC 2335.
The star cluster NGC 2343 is to the left of the head in the blue area.
Even further to the left, before the bright yellow area starts, is the star cluster NGC 2353. The bright yellow nebula at the upper left is Sh2-294.
The yellow area to the left of the lower wing is the carbon star W Canis Majoris.
The nebula was originally listed as a planetary nebula. In the meantime it is listed as a reflection nebula in SIMBAD. (https://www.deepskycorner.ch/k2-1/k2-1.php)
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NASA, ESA and the Hubble Heritage Team (STScI/AURA). Acknowledgment: R. Sahai and J. Trauger (Jet Propulsion Laboratory), CC BY 4.0
Herbert_W, CC BY-NC-SA 4.0, added cross
Right at the dark cloud is Crux.
At the lower right the emission nebulae IC 2948 and IC 2872 are visible and above them the bright point is the star cluster NGC 3766.
Directly left of the left star is the star cluster NGC 4852 and below this the bright point is the star cluster NGC 4755 (C94).
In the middle of the coal sack is the star cluster NGC 4609 (C98).
Above the lowest star is the star cluster NGC 4349.
Between the lowest star and the emission nebulae is the star cluster NGC 4052 and above it is the star cluster NGC 4103.
Judy Schmidt from USA, CC BY 2.0, via Wikimedia Commons
The LBN 468 nebula complex consists of several dark nebulae:
The lower area LDN 1147 with the two dark bands LDN 1148.
The dark complete left area LDN 1158
The middle upper area LDN 1157
The upper right area LDN 1152
To the left at the top of the nebula area is another reflection nebula known as Gyulbudaghian's Nebula (GM 1-29).
Keesscherer, CC BY-SA 4.0, via Wikimedia Commons
The bright blue star is 41 Tauri
The Dark Shark Nebula copyright by Scott Rosen
vdB149 is the lower blue reflection nebula from the shark's head, vdB150 sits on top of the shark's head.
The slightly brighter dark nebula on the right side is LDN 1247.
The galaxy to the left is PGC 37662.
The galaxy in the upper left is Mrk 1034NE (PGC 9074), the one in the lower right is Mrk 1034B (PGC 9071).
Hewholooks, CC BY-SA 3.0, via Wikimedia Commons
The Markarian's chain includes the following eight objects from lower right to upper left:
M84 (NGC 4374)
M86 (NGC 4406)
NGC 4435 above and NGC 4438 below (Eyes Galaxies)
NGC 4458 above and NGC 4461 below
NGC 4473
NGC 4477
Above M86 is NGC 4402 (not part of the chain).
Between M84 and M86 at the bottom of the rim is NGC 4387 (not belonging to the chain).
Judy Schmidt from USA, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
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Judy Schmidt, CC BY 2.0, via Wikimedia Commons
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Judy Schmidt, CC BY 2.0, via Wikimedia Commons
M 1-18 is close to M46.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
At the very top center is the star cluster M21.
Diagonally right below is the Trifid Nebula M20 and diagonally right below that is Sh2-28.
At the very bottom center is the Lagoon Nebula M8 with the bright nebulae NGC 6526 (lower left) and the irregular region NGC 6533 (upper right) (separated by the slightly darker s-shaped region) and the star cluster NGC 6530 (to the left of the bright region).
To the left is the large nebula Sh2-29 with the nebula NGC 6559 (lower left) and the oblique planetary nebula Minkowski 1-41 (red dot), the star cluster IC 4685 (center), the nebula IC 1275 (upper left center), the nebula IC 1274 (above).
A little above the blue star is nebula IC 4684 and diagonally above it on the right is star cluster NGC 6546.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Below, the light blue nebula is PN G016.3-02.3.
Above, the red nebula is M 1-46.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
ESA/Hubble & NASA, CC BY 3.0, via Wikimedia Commons, Original-Link
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt, CC BY-SA 3.0, via Wikimedia Commons
Jschulman555, CC BY-SA 3.0, via Wikimedia Commons
The beginning star cluster at the bottom of the image is M46.
The planetary nebula NGC 2438 (blue nebula in the center) is in the foreground and does not belong to M46. (According to recent investigations, it could be that the planetary nebula does interargue with the Star cluster and has the same distance. (https://arxiv.org/pdf/0710.2900.pdf)
In the upper left corner is OH 231.8+4.2 (Calabash Nebula Rotten Egg Nebula).
Sebastian Täubert, CC BY-NC-SA 4.0
The large nebula is NGC 1491.
Ou 1 is to the left of it.
Maurizio Cabibbo, CC BY-SA 4.0, via Wikimedia Commons
The blue nebula is Ou 4, the red nebula is Sh2-129.
The small blue-red nebula on the right is vdB 140.
NASA/JPL-Caltech/J. Hora (Harvard-Smithsonian CfA), Public domain, via Wikimedia Commons
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Planetary nebula in the globular cluster M15.
Copyright by WikiSky.org, WikiSky's snapshot tool
Fabian RRRR, CC BY-SA 3.0, via Wikimedia Commons (picture rotated), Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA).
Copyright by Legacy Surveys / D. Lang (Perimeter Institute), CC BY 4.0
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Judy Schmidt from USA, CC BY 2.0, via Wikimedia Commons
Below, the light blue nebula is PN G016.3-02.3.
Above, the red nebula is M 1-46.
It is the planetary nebula with the least amount of OIII of all known planetary nebulae. (https://arxiv.org/pdf/astro-ph/0308225.pdf)
The large nebula in the center is Sh2-232. In its center is also the planetary nebula PN G173.5+03.2 (blue dot).
Diagonally left above it is Sh2-235.
To the left of it is Sh2-231.
And again to the left of it the small nebula is Sh2-233.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
ESO, CC BY 4.0, via Wikimedia Commons, Original-Link
The galaxy group consists of the galaxies NGC 87 (upper right), NGC 88 (center), NGC 89 (lower) and NGC 92 (upper left). Together they form Robert's Quartet.
NASA/CXC/MIT/F. Baganoff, R. Shcherbakov et al., Public domain, via Wikimedia Commons
Because of all the dust and gas in the field of view to the center of our galaxy, it is not possible to view the center optically. Radio telescopes are needed here. (https://en.wikipedia.org/wiki/Sagittarius_A*)
vdB 123 is directly in the center of the image.
Below that the bright yellow nebula in the center of the dark nebula is the Serpens Reflection Nebula (SRN).
Propellernebel copyright by Jens Hackmann
DWB-111 is the upper propeller part.
DWB-119 is the lower propeller part.
The nebula right next to the upper propeller part is DWB-118.
Judy Schmidt from USA, CC BY 2.0, via Wikimedia Commons
NASA, ESA, and the Hubble Heritage Team (STScI/AURA). Acknowledgement: J. Hughes (Rutgers University), CC BY 4.0
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
NASA, ESA, HEIC, and the Hubble Heritage Team (STScI/AURA). Acknowledgment: Y.-H. Chu and R. M. Williams (UIUC), CC BY 4.0
Near the image means supernova remnant SNR B0543-68.9 can be seen.
Directly to the right is supernova remnant DEM L 297.
The bright nebula below is LHA 120-N 164.
The bright nebula at the right edge of the image is the Tarantula Nebula NGC 2070.
The star cluster right above is NGC 2093.
The small star cluster at the lower left is NGC 2108.
The star at the lower center of the image belongs to the star cluster NGC 2100.
P. Michaud, S. Fisher, and R. Carrasco from Gemini and T. Rector from the Univ. of Alaska at Anchorage/International Gemini Observatory, CC BY 4.0
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
Smithsonian Institution, Public domain
NRAO/AUI/NSF, K. Golap, M. Goss; NASAs Wide Field Survey Explorer (WISE), CC BY 3.0, via Wikimedia Commons
NASA/CXC/Univ of Manitoba/S.Safi-Harb et al, Optical: DSS, Infrared: NASA/JPL-Caltech, Public domain, via Wikimedia Commons
X-ray: NASA/CXC/MIT/L.Lopez et al.; Infrared: Palomar; Radio: NSF/NRAO/VLA, Public domain, via Wikimedia Commons
The bright lower part is Sh2-91.
T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab/NSF/AURA), CC BY 4.0
NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration. Acknowledgement: Robert A. Fesen (Dartmouth College, USA) and James Long (ESA/Hubble), CC BY 4.0
Smithsonian Institution, Public domain
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This supernova remnant is located next to the Heart Nebula IC 1805 (the first foothills of it can be seen on the lower left).
NASA/JPL-Caltech/UCLA, Public domain, via Wikimedia Commons
Puppis A is right next to the Vela supernova remnant.
NASA/CXC/SAO, Public domain, via Wikimedia Commons
NASA/CXC/U.Texas, Public domain, via Wikimedia Commons
X-ray: NASA/CXC/Univ of Michigan/M.Reynolds et al; Infrared: NASA/JPL-Caltech; Radio: CSIRO/ATNF/ATCA, Public domain, via Wikimedia Commons
Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell, X-ray: Chandra X-ray Observatory; NASA/CXC/Rutgers/G. Cassam-Chenaï, J. Hughes et al., Visible light: 0.9-metre Curtis Schmidt optical telescope; NOAO/AURA/NSF/CTIO/Middlebury College/F. Winkler and Digitized Sky Survey, CC BY 4.0
Chandra X-ray Observatory, Public domain, via Wikimedia Commons
Image credit: X-ray: NASA/CXC/Morehead State Univ/T.Pannuti et al; Radio: Molonglo Obs. Synthesis Tel.; Infrared: NASA/JPL-Caltech, Public domain, via Wikimedia Commons
Smithsonian Institution from United States, No restrictions, via Wikimedia Commons
The Honeycomb Nebula belongs to the supernova SN 1987A.
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RCW 99 can be seen in the center of the picture.
The open cluster in the upper left is Trumpler 23.
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The galaxy on the right is UGC 12914 (PGC 120), the one on the left is UGC 12915 (PGC 129).
The small galaxy diagonally to the upper left is UGC 3704.
On the left is the galaxy UGC 3697.
On the right is the galaxy cluster Abell 565.
UGC 3701 is still visible at the top.
The bright star below the galaxy is Regulus.
In the upper left corner is NGC 3844.
At the left edge are the two galaxies NGC 3841 (top) and NGC 3842 (bottom).
The galaxies are part of the galaxy cluster Abell 1637.
Tomasz Tomsonowskyy, CC BY-SA 4.0, via Wikimedia Commons
The star on the far left of the handlebar is Polaris.
The star at the top, the left corner of Ursa Minor, is Kochab.
Adam Block/Mount Lemmon SkyCenter/University of Arizona, CC BY-SA 4.0, via Wikimedia Commons
The star from which the glow emanates is HD 44179.
Fabian RRRR, CC BY-SA 3.0, via Wikimedia Commons, Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA).
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The planetary nebula lies right next to the Heart Nebula IC 1805.
ESO, CC BY 3.0, via Wikimedia Commons, Original-Link
The complete nebula area on the right is Gum 29 (RCW 49).
The bright central red nebula is NGC 3247.
Directly above NGC 3247, the small bright delineated area, is Westerlund 2.
At the bottom of the rim is the open star cluster IC 2581.
The nebula on the left edge is RCW 50.
The yellow star in the upper right is HD 90289.
In the upper right is NGC 6883.
The blue nebula is caused by the very hot star Wolf-Rayet 134 (WR 134), as its mass and temperature distribute matter in the surrounding area via stellar winds.
Judy Schmidt, CC BY 2.0, via Wikimedia Commons
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The binary star system consists of a white dwarf and a main sequence star. The white dwarf collects matter from the main sequence star through gravitational effects. This causes extreme brightness fluctuations and gas clouds visible in the UV. (https://de.wikipedia.org/wiki/Z_Camelopardalis)