KinchAstro
  • Home Page
  • Progress through the years
    • 2023 Images >
      • Messier 101 (2023)
      • SH2-278
      • Soul Nebula (2023)
      • NGC 1491 (Fossil Footprint) 2023
      • IC 443 (Jellyfish Nebula) 2023
    • 2022 Images >
      • Andromeda Galaxy (2022)
      • SH2-173
      • Bat Nebula in Eastern Veil
      • SH2-124
      • NGC 7380 Wizard (2022)
      • SH2-132 (2022)
      • Cygnus Butterfly
      • SH2-140 & SH2-145
      • SNR G082.2+05.3
      • Just one area of Gas & Dust in Cygnus
      • Propeller Nebula (2022)
      • Around NGC 6914
      • SH2-115 & Abell 71 Wide Field
      • IC 4685
      • M20 - Trifid Nebula
      • SH2-101 (2022)
      • WR 134 in Cygnus
      • M 17 (2022)
      • M5 Star Cluster
      • Cederblad 51
      • Cone Nebula to NGC 2259
      • NGC 2353 (Stars & Stuff)
      • SH2-232 (2022)
      • IC 410 (Tadpoles) - 2022
    • 2021 Images >
      • SH2-224 (2021)
      • NGC 2174 (2021)
      • SH2-284 (2021)
      • Cocoon Nebula
      • SH2-261
      • Heart Nebula 2021
      • LBN 437 (SH2-126)
      • IC 1848 - Soul Nebula
      • SNR G082.2+05.3
      • SH2-135
      • LDN 909 & DWB 111
      • IC 5068
      • SH2-119
      • North of Sadr (Cygnus)
      • The Blue Horse Head Nebula
      • Messier 3 (2021)
      • Pink Moon Apr.2021
      • NGC 1499 (California Nebula)
      • MW2 (Dust Angel)
      • IC 2177 (Seagull) 2021
      • Abell 31 (2021)
      • SH2-308 Dolphin Nebula
      • M78
      • Jones Emberson 1 (2021)
      • HFG1 & Abell 6
      • SH2-282
    • 2020 Images >
      • Abell 21 (2020) Madusa Nebula
      • SH2-200
      • M33 (2020)
      • SH2-112
      • SH2-132 (2020)
      • IC 1805 - Heart Nebula
      • SH2-155 - Cave Nebula
      • SH2-114 - The Flying Dragon
      • SH2-115
      • Abell 85 (CTB-1)
      • LDN1235 - Shark Nebula
      • IC 1396 with Elephant Trunk Nebula
      • IC 1311
      • Crescent toward Sadr
      • SH2-54 & NGC 6604
      • IC 1318 Sadr Region
      • IC4592 - Blue Horsehead
      • Rho Ophiuchi
      • NGC 2259
      • Horsehead & Flame
      • IC 2177
      • SH2-232
      • SH2-284
      • SH2-280 or LBN 973
      • Rosette Nebula
    • 2019 Images >
      • Veil Nebula
      • NGC 7822 (2019)
      • Lobster Claw & Bubble
      • Tulip Nebula & NGC 6871
      • Earth's Moon
      • Propeller Nebula
      • NGC 7129 & NGC 7142
      • NGC 7023 - Iris Nebula
      • M108 & M97
      • M13 Globular Cluster
      • HCG 44
      • M81 & M82
      • M5 Star Cluster
      • M3 Star Cluster
      • NGC 4565
      • M 101 Galaxy (2019)
      • Abell 33
      • M1 Crab Nebula
      • IC 410 Tadpoles
      • Jellyfish Nebula
    • 2018 Images >
      • Simeis 147
      • North America & Pelican
      • NGC 7635 Bubble Nebula
      • NGC 7822 (2018)
      • NGC 281 Pacman Nebula
      • Soap Bubble & Crescent Nebula
      • NGC 2327 Seagull Nebula HaSHO
      • NGC 2327 Seagull Nebula Ha
      • NGC 2359 Thor's Helmet
      • Jones Emberson 1
    • 2017 Images >
      • M31 Andromeda Galaxy
      • NGC 7293 Helix Nebula
      • NGC 2174 Monkey Head Nebula
      • M16 Eagle Nebula
      • NGC 6820 & NGC 6823
      • Abell 21 (2017) Medusa Nebula
      • Sh2-290
      • NGC 2264 NB Colour
      • NGC 2264
      • IC 2118 Witch Head Nebula
      • M42 Orion Nebula
    • 2016 Images >
      • Cederblad 214
      • NGC 1491
      • IC 1795 The Fishhead Nebula
      • Bubble Nebula (2016)
      • NGC 7380 Wizard Nebula
      • Pickering's Triangle
      • Caldwell 33
      • Eastern Veil Nebula (Caldwell 33) - Ha
      • SH2-132
      • SH2-155 The Cave Nebula
      • Cave Nebula (Ha)
      • NGC7000 & IC5070
      • Cygnus Wall
      • M13
      • Pelican Nebula
      • M 101 Galaxy (2016)
      • M3 - Star Cluster
      • IC 2177 - Seagull Nebula
      • A few Planetary Nebulae
      • Waxing Moon
      • Rosette Nebula - HSHO
      • Rosette Nebula - Ha
      • Earth's Moon
      • Horse Head & Flame Nebulae
      • NGC 2359
    • 2015 Images >
      • Tadpoles - Crop
      • IC 405 & IC 410
      • IC410 Tadpole Nebula Full
      • IC410 Tadpole Nebula
      • Soul Nebula
      • Dumbbell Nebula
      • M33 Triangulum Galaxy
      • NGC 281 PacMan Nebula
      • Melotte 15 (Heart of the Heart Nebula)
      • Heart Nebula
      • NGC 7822 (2015)
      • Propeller Nebula
      • Pickering's Triangle
      • Omega Nebula
      • Elephant's Trunk Nebula
      • M108 & M97
      • IC 2177
      • Cone & Christmas Tree
      • Monkey Head Nebula
      • Bubble Nebula & M52 (Open Cluster)
      • The Rosette
      • Jellyfish Nebula
    • 2014 Images >
      • Crab Nebula (2014)
      • The Horsehead & Flame
      • The Rosette Nebula
      • Thor's Helmet
      • Leo Triplet
      • Sombrero Galaxy
      • Pinwheel Galaxy
      • Eagle Nebula
      • Lagoon Nebula
      • Pelican Nebula
      • Veil Nebula
      • Great Orion Nebula
    • 2013 Images
    • ....and before!
  • Putting in the Observatory
    • Observatory
    • Foundation Area
    • Foundation 1
    • Foundation 2
    • Building the Pier
    • Pier Completed
    • All wired up.
    • Ready for a nights work!
    • Observatory arrives
    • Neatly packed on the pallet
    • Construction underway
    • Ready to bolt the base to the concrete
    • Dome ready to go on.
    • Ready for side panel
    • Side panel fitted.
    • A look inside.
    • Solar Panel Power
    • Observatory 2
  • My Astro Imaging Gear
    • List of Hardware & Software
    • Connection Diagram - Electrical
    • Connection Diagrams - Hardware
    • Equatorial Mounts >
      • Takahashi EM 400 Temma 2
      • Takahashi EM200 Temma 2
    • Telescopes >
      • Takahashi FSQ130ED
      • Tak FSQ 106 ED
      • Tak FS 60 CB
      • Meade LX200R
    • Cameras >
      • QSI 6120i
      • QHY 5 II
      • Atik 460 EX
    • Other Equipment >
      • Filter Wheel & Filters
      • Other Gear
  • Information & Links
  • On a more personal note...
Picture
Caldwell 33
          Previous                                                  Click on image for higher resolution                                                                          Next
The Eastern Veil (also known as Caldwell 33), The brightest areas are NGC 6992, trailing off farther south into NGC 6995 (together with NGC 6992 also known as "Network Nebula") and IC 1340.

This is HST palette: SHO mapped to RGB. See also the Bi-Colour version of this image below and the Ha only version (with some more info) on NEXT page


The following refers to the full veil nebula:
The nebula was discovered on 1784 September 5 by William Herschel. He described the western end of the nebula as "Extended; passes thro' 52 Cygni... near 2 degree in length", and described the eastern end as "Branching nebulosity... The following part divides into several streams uniting again towards the south."

When finely resolved, some parts of the image appear to be rope-like filaments. The standard explanation is that the shock waves are so thin, less than one part in 50,000 of the radius, that the shell is visible only when viewed exactly edge-on, giving the shell the appearance of a filament. Undulations in the surface of the shell lead to multiple filamentary images, which appear to be intertwined.

Even though the nebula has a relatively bright integrated magnitude of 7, it is spread over so large an area that the surface brightness is quite low, so the nebula is notorious among astronomers as being difficult to see. However, an observer can see the nebula clearly in a telescope using an OIII filter (a filter isolating the wavelength of light from doubly ionized oxygen), as almost all light from this nebula is emitted at this wavelength. An 8-inch (200 mm) telescope equipped with an OIII filter shows the delicate lacework apparent in photographs, and with an OIII filter almost any telescope could conceivably see this nebula. Some argue that it can be seen without any optical aid except an OIII filter held up to the eye.

The brighter segments of the nebula have the New General Catalogue designations NGC 6960, 6974, 6979, 6992, and 6995. The easiest segment to find is 6960, which runs behind the naked eye star 52 Cygni. NGC 6992/5 are also relatively easy objects on the eastern side of the loop. NGC 6974 and NGC 6979 are visible as knots in an area of nebulosity along the northern rim. Pickering's Triangle is much fainter, and has no NGC number (though 6979 is occasionally used to refer to it). It was discovered photographically in 1904 by Williamina Fleming (after the New General Catalogue was published), but credit went to Edward Charles Pickering, the director of her observatory, as was the custom of the day.

Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2 
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY 5 II
Focal reducers: Takahashi QE 0.73x
Software: PHD 2,  Pleiades Astrophoto PixInsight ,  Sequence Generator Pro SGP
Filters: Astrodon SII  3nm, Astrodon Ha 3nm,  Astrodon OIII 3nm,  Astronomik RGB
Accessories: Robofocus Focuser,  ATIK EFW2

Original Resolution: 4188 x 2612
Dates: 16th Jul - 24th Jul '16


Frames:
Astrodon Ha 3nm:  20x1200" bin 1x1
Astrodon OIII 3nm: 20x1200" bin 1x1
Astrodon SII  3nm:  20x1200" bin 1x1
Astronomik RGB: 5 ea x 240" bin 1x1


Integration: 21 Hours.

Center (RA, Dec):(314.022, 31.406)
Center (RA, hms):20h 56m 05.337s
Center (Dec, dms):+31° 24' 22.793"
Size:1.59 x 1.21 deg
Radius:0.999 deg
Pixel scale:1.64 arcsec/pixel
Orientation:Up is 179 degrees E of N


Sky Plot

Annotated Image
Picture

SII, Ha & OIII sub frames:
SII
Ha
OIII

Bi-Colour Image made with Ha & OIII mapped HOO = RGB
Picture

Something different: This is an OHS = RGB rendition of the image.
Picture
This is why Narrowband Images are sometimes referred to as False Colour images. The emission lines can be mapped to suit  - either to bring out certain features better or to appear more pleasing to the eye. The topmost image is in Hubble Palette....the normal rendition (if there is such a thing) that we are used to. Any comments on the 'unusual' OHS rendition are most welcome via the last page on this site - my guess is that you will either love it or hate it. Generally I am not one for too much colour in 'astro' images - but I actually like this.   

All Images
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  • Home Page
  • Progress through the years
    • 2023 Images >
      • Messier 101 (2023)
      • SH2-278
      • Soul Nebula (2023)
      • NGC 1491 (Fossil Footprint) 2023
      • IC 443 (Jellyfish Nebula) 2023
    • 2022 Images >
      • Andromeda Galaxy (2022)
      • SH2-173
      • Bat Nebula in Eastern Veil
      • SH2-124
      • NGC 7380 Wizard (2022)
      • SH2-132 (2022)
      • Cygnus Butterfly
      • SH2-140 & SH2-145
      • SNR G082.2+05.3
      • Just one area of Gas & Dust in Cygnus
      • Propeller Nebula (2022)
      • Around NGC 6914
      • SH2-115 & Abell 71 Wide Field
      • IC 4685
      • M20 - Trifid Nebula
      • SH2-101 (2022)
      • WR 134 in Cygnus
      • M 17 (2022)
      • M5 Star Cluster
      • Cederblad 51
      • Cone Nebula to NGC 2259
      • NGC 2353 (Stars & Stuff)
      • SH2-232 (2022)
      • IC 410 (Tadpoles) - 2022
    • 2021 Images >
      • SH2-224 (2021)
      • NGC 2174 (2021)
      • SH2-284 (2021)
      • Cocoon Nebula
      • SH2-261
      • Heart Nebula 2021
      • LBN 437 (SH2-126)
      • IC 1848 - Soul Nebula
      • SNR G082.2+05.3
      • SH2-135
      • LDN 909 & DWB 111
      • IC 5068
      • SH2-119
      • North of Sadr (Cygnus)
      • The Blue Horse Head Nebula
      • Messier 3 (2021)
      • Pink Moon Apr.2021
      • NGC 1499 (California Nebula)
      • MW2 (Dust Angel)
      • IC 2177 (Seagull) 2021
      • Abell 31 (2021)
      • SH2-308 Dolphin Nebula
      • M78
      • Jones Emberson 1 (2021)
      • HFG1 & Abell 6
      • SH2-282
    • 2020 Images >
      • Abell 21 (2020) Madusa Nebula
      • SH2-200
      • M33 (2020)
      • SH2-112
      • SH2-132 (2020)
      • IC 1805 - Heart Nebula
      • SH2-155 - Cave Nebula
      • SH2-114 - The Flying Dragon
      • SH2-115
      • Abell 85 (CTB-1)
      • LDN1235 - Shark Nebula
      • IC 1396 with Elephant Trunk Nebula
      • IC 1311
      • Crescent toward Sadr
      • SH2-54 & NGC 6604
      • IC 1318 Sadr Region
      • IC4592 - Blue Horsehead
      • Rho Ophiuchi
      • NGC 2259
      • Horsehead & Flame
      • IC 2177
      • SH2-232
      • SH2-284
      • SH2-280 or LBN 973
      • Rosette Nebula
    • 2019 Images >
      • Veil Nebula
      • NGC 7822 (2019)
      • Lobster Claw & Bubble
      • Tulip Nebula & NGC 6871
      • Earth's Moon
      • Propeller Nebula
      • NGC 7129 & NGC 7142
      • NGC 7023 - Iris Nebula
      • M108 & M97
      • M13 Globular Cluster
      • HCG 44
      • M81 & M82
      • M5 Star Cluster
      • M3 Star Cluster
      • NGC 4565
      • M 101 Galaxy (2019)
      • Abell 33
      • M1 Crab Nebula
      • IC 410 Tadpoles
      • Jellyfish Nebula
    • 2018 Images >
      • Simeis 147
      • North America & Pelican
      • NGC 7635 Bubble Nebula
      • NGC 7822 (2018)
      • NGC 281 Pacman Nebula
      • Soap Bubble & Crescent Nebula
      • NGC 2327 Seagull Nebula HaSHO
      • NGC 2327 Seagull Nebula Ha
      • NGC 2359 Thor's Helmet
      • Jones Emberson 1
    • 2017 Images >
      • M31 Andromeda Galaxy
      • NGC 7293 Helix Nebula
      • NGC 2174 Monkey Head Nebula
      • M16 Eagle Nebula
      • NGC 6820 & NGC 6823
      • Abell 21 (2017) Medusa Nebula
      • Sh2-290
      • NGC 2264 NB Colour
      • NGC 2264
      • IC 2118 Witch Head Nebula
      • M42 Orion Nebula
    • 2016 Images >
      • Cederblad 214
      • NGC 1491
      • IC 1795 The Fishhead Nebula
      • Bubble Nebula (2016)
      • NGC 7380 Wizard Nebula
      • Pickering's Triangle
      • Caldwell 33
      • Eastern Veil Nebula (Caldwell 33) - Ha
      • SH2-132
      • SH2-155 The Cave Nebula
      • Cave Nebula (Ha)
      • NGC7000 & IC5070
      • Cygnus Wall
      • M13
      • Pelican Nebula
      • M 101 Galaxy (2016)
      • M3 - Star Cluster
      • IC 2177 - Seagull Nebula
      • A few Planetary Nebulae
      • Waxing Moon
      • Rosette Nebula - HSHO
      • Rosette Nebula - Ha
      • Earth's Moon
      • Horse Head & Flame Nebulae
      • NGC 2359
    • 2015 Images >
      • Tadpoles - Crop
      • IC 405 & IC 410
      • IC410 Tadpole Nebula Full
      • IC410 Tadpole Nebula
      • Soul Nebula
      • Dumbbell Nebula
      • M33 Triangulum Galaxy
      • NGC 281 PacMan Nebula
      • Melotte 15 (Heart of the Heart Nebula)
      • Heart Nebula
      • NGC 7822 (2015)
      • Propeller Nebula
      • Pickering's Triangle
      • Omega Nebula
      • Elephant's Trunk Nebula
      • M108 & M97
      • IC 2177
      • Cone & Christmas Tree
      • Monkey Head Nebula
      • Bubble Nebula & M52 (Open Cluster)
      • The Rosette
      • Jellyfish Nebula
    • 2014 Images >
      • Crab Nebula (2014)
      • The Horsehead & Flame
      • The Rosette Nebula
      • Thor's Helmet
      • Leo Triplet
      • Sombrero Galaxy
      • Pinwheel Galaxy
      • Eagle Nebula
      • Lagoon Nebula
      • Pelican Nebula
      • Veil Nebula
      • Great Orion Nebula
    • 2013 Images
    • ....and before!
  • Putting in the Observatory
    • Observatory
    • Foundation Area
    • Foundation 1
    • Foundation 2
    • Building the Pier
    • Pier Completed
    • All wired up.
    • Ready for a nights work!
    • Observatory arrives
    • Neatly packed on the pallet
    • Construction underway
    • Ready to bolt the base to the concrete
    • Dome ready to go on.
    • Ready for side panel
    • Side panel fitted.
    • A look inside.
    • Solar Panel Power
    • Observatory 2
  • My Astro Imaging Gear
    • List of Hardware & Software
    • Connection Diagram - Electrical
    • Connection Diagrams - Hardware
    • Equatorial Mounts >
      • Takahashi EM 400 Temma 2
      • Takahashi EM200 Temma 2
    • Telescopes >
      • Takahashi FSQ130ED
      • Tak FSQ 106 ED
      • Tak FS 60 CB
      • Meade LX200R
    • Cameras >
      • QSI 6120i
      • QHY 5 II
      • Atik 460 EX
    • Other Equipment >
      • Filter Wheel & Filters
      • Other Gear
  • Information & Links
  • On a more personal note...