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
M 101 Pinwheel Galaxy
I done another version of M 101 in 2019 - HERE
        Previous                                                           Click on image for higher resolution                                                                         Next
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away in the constellation Ursa Major, first discovered by Pierre Méchain on March 27, 1781, and communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.Pierre Méchain, described it as a "nebula without star, very obscure and pretty large, 6' to 7' in diameter, between the left hand of Bootes and the tail of the great Bear.
William Herschel noted in 1784 that "[M101] in my 7, 10, and 20-feet [focal length] reflectors shewed a mottled kind of nebulosity, which I shall call resolvable; so that I expect my present telescope will, perhaps, render the stars visible of which I suppose them to be composed."
Lord Rosse observed M101 in his 72-inch diameter Newtonian reflector during the second half of the 19th century. He was the first to make extensive note of the spiral structure and made several sketches.

To observe the spiral structure in modern instruments requires a fairly large instrument, very dark skies, and a low power eyepiece.

With a diameter of 170,000 light-years it is roughly equal the size of the Milky Way. It has a disk mass on the order of 100 billion solar masses, along with a small central bulge of about 3 billion solar masses.
It is noted for its high population of H II regions, many of which are very large and bright. H II regions usually accompany the enormous clouds of high density molecular hydrogen gas contracting under their own gravitational force where stars form.They are ionized by large numbers of extremely bright and hot young stars; those in M101 are capable of creating hot superbubbles. In a 1990 study, 1264 H II regions were cataloged in the galaxy. Three are prominent enough to receive New General Catalogue numbers - NGC 5461, NGC 5462, and NGC 5471.

M101 is asymmetrical due to the tidal forces from interactions with its companion galaxies. These gravitational interactions compress interstellar hydrogen gas, which then triggers strong star formation activity in M101's spiral arms that can be detected in ultraviolet images. (Note the 'pink' areas in my above image).




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: None
Software: PHD 2,  Pleiades Astrophoto PixInsight ,  Sequence Generator Pro SGP
Filters: Astronomik LRGB & 6nm Ha
Accessories: Robofocus Focuser,  ATIK EFW2

Resolution: 3035 x 1930
Dates: 
9th Apr  - 1st May '16

Frames:
Astronomik Lum:            4x300" + 32x600"   bin 1x1
Astronomik Red:             3x300" + 15x600"   bin 1x1

Astronomik Green:         3x300" + 13x600"   bin 1x1
Astronomik Blue:            3x300" + 13x600"   bin 1x1
Astronomik Ha 6nm:      5x900"                    bin 1x1


Integration: 14 Hours 30 minutes


Center (RA, Dec):(210.802, 54.351)
Center (RA, hms):14h 03m 12.394s
Center (Dec, dms):+54° 21' 04.260"
Size:61 x 38.8 arcmin
Radius:0.603 deg
Pixel scale:1.21 arcsec/pixel
Orientation:Up is -90 degrees E of N


Sky Plot

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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...