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
Above image awarded EAPOD 'Image of the Day' 29th March 2021
Below is the original effort & above is a second rendition with RGB stars and the nebula colour adjusted. 
Picture
SH2-308 (Dolphin Nebula)
Above image awarded APOD GrAG 'Image of the Day' 1st March 2021
            Previous                                            Click on either image to enlarge.                                                   Next
Sh2-308, also designated as Sharpless 308, RCW 11, or LBN 1052, is an H II region located near the centre of the constellation Canis Major, composed of ionised hydrogen. It is about 8 degrees south of Sirius, the brightest star in the night sky. The nebula is bubble-like (hence its common name, the Cosmic Bubble – though more commonly known now as the Dolphin Nebula), surrounding a Wolf–Rayet star named EZ Canis Majoris. This star is in the brief, pre-supernova phase of its stellar evolution. The nebula is about 4,530 light-years away from Earth, but some sources indicate that both the star and the nebula are up to 5,870 light years away. Yet others indicate the nebula is as close as 1,875 light years from Earth.[6]
Sh2-308 surrounds the Wolf–Rayet star EZ Canis Majoris, also designated EZ CMa or WR 6. Its apparent magnitude varies from 6.71 to 6.95. Its spectral type indicates that the star is very hot and luminous. The spectrum shows that it is devoid of hydrogen at the surface. EZ Canis Majoris is expected eventually to explode in a supernova, therefore subsuming the nebula.



Imaging telescope: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer:  Tak QE 0.73x
Software: PHD 2,  Astro Pixel Processer, PixInsight ,  Sequence Generator Pro SGP
Filters: Astrodon Ha (5nm) & OIII (5nm)  Astrodon RGB.
Accessories: ATIK EFW2

Original Resolution: 4000 x 2500
Dates: Jan. 31 - Feb. 13, 2021
Frames:
Astrodon Ha: 21x900" 
Astrodon OIII: 22x900"
Astrodon RGB: 45x120" (Top image only)

Integration: 12 Hours 15 Mins.

Center (RA, Dec):            (103.618, -23.958)
Center (RA, hms):           06h 54m 28.361s
Center (Dec, dms):         -23° 57' 28.592"
Size:      89.6 x 56 arcmin
Radius: 0.880 deg
Pixel scale:         1.34 arcsec/pixel
Orientation:       Up is 90.6 degrees E of N



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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...