September 23, 2024

M15 – Globular Cluster in Pegasus

M15 – Globular Cluster in Pegasus

Telescope: Meade 10” LX850 ACF @ f/8, Orion Atlas EQ-G

Camera: QHY 367c Pro, GSO IR Blocking Filter

Guide scope: Astro-Tech 60mm, ASI120MM Mini, PHD2

Exposure: 28x180sec, gain 2800, offset 50, -10C, saved as Raw16/FITS

Darks: 32x180sec, gain 2800, offset 50, -10C, saved as Raw16/FITS

Flats: 64×0.250sec, tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, poor transparency, smoke, haze

Lensed Sky Quality Meter: 18.2

Stacking: Mean with a 1-sigma clip.

White Balance: Nebulosity Automatic

Software: SharpCap Pro, Deep Sky Stacker, Nebulosity, Photoshop

M15, a bright, condensed globular cluster in a relatively lonely stretch of sky in Pegasus. It is one of the oldest known globular clusters with an estimated age of 13.2 billion years and the first globular cluster found to have a planetary nebula (Pease 1), one of only four planetary nebula associated with a globular cluster. M15 is also one of the most condensed globular cluster and at some point in the distant past it experienced a core collapse that may have heralded the formation of a black hole in its nucleus.

M15 is currently well placed in the southeast as the sky darkens.

M2 – Globular Cluster in Aquarius

M2 – Globular Cluster in Aquarius

Telescope: Meade 10” LX850 ACF @ f/8, Orion Atlas EQ-G

Camera: QHY 367c Pro, GSO IR Blocking Filter

Guide scope: Astro-Tech 60mm, ASI120MM Mini, PHD2

Exposure: 26x180sec, gain 2800, offset 50, -10C, saved as Raw16/FITS

Darks: 32x180sec, gain 2800, offset 50, -10C, saved as Raw16/FITS

Flats: 64×0.250sec, tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, poor transparency, smoke, haze

Lensed Sky Quality Meter: 18.0

Stacking: Mean with a 1-sigma clip.

White Balance: Nebulosity Automatic

Software: SharpCap Pro, Deep Sky Stacker, Nebulosity, Photoshop

M2 is a big, beautiful globular cluster that is well placed in the eastern sky in late summer and early fall. It is an easy target for a small telescope. Under dark skies it can even be glimpsed without a telescope or even binoculars. M2 is about 37,500 light years away and lies beyond the galactic center. Like most globular clusters M2 is an ancient relic of the early universe with an estimated age of about 13 billion years.

M2 is currently well placed in the eastern sky during the early evening.

Jupiter & Io – 9/8/2022 02h30m EDT

Jupiter & Io – 9/8/2022 02h30m EDT

Telescope: Celestron C11 @ f/25, Orion Atlas EQ-G

Camera: ZWO ASI462MC, 2.5x Powermate

Filter: Highpoint Scientific IR Blocking Filter

Seeing: fair, 3/5

Exposure: 5% of 5x(3min @ 2msec), gain 400, saved as RAW8, SER

Histogram: 70%

White Balance: Nebulosity Automatic

Software: SharpCap Pro, AutoStakkert, Registax, Nebulosity, WinJUPOS, Photoshop

This image of Jupiter was taken at 2:30am on the morning of September 8th shortly after Io completed a transit of the planet. I thought that it was neat that this image shows a hint of detail on Io as well as its beautiful color. I still have some data sets sitting on my hard drive that were taken during the transit that I will process as soon as I get a chance.

Jupiter rises in the northeast during the early evening and is high in the south after midnight.

Jupiter – 9/9/2022 01h56m EDT

Jupiter – 9/9/2022 01h56m EDT

Telescope: Celestron C11 @ f/25, Orion Atlas EQ-G

Camera: ZWO ASI462MC, 2.5x Powermate

Filter: Highpoint Scientific IR Filter

Seeing: fair, 3/5

Exposure: 5% of 10x(5min @ 2msec), gain 400, saved as RAW8, SER

Histogram: 70%

White Balance: Nebulosity Automatic

Software: SharpCap Pro, AutoStakkert, Registax, Nebulosity, WinJUPOs, Photoshop

This image of Jupiter was taken shortly before 2am on the morning of September 9th shortly after the Great Red Spot crossed Jupiter’s central meridian. The Great Red Spot continues to slowly shrink and fade, but still makes quite an impression on the southern equatorial belt.

Jupiter rises in the northeast during the early evening and is high in the south after midnight.

Saturn – 9/9/2022 23h15m EDT

Saturn – 9/9/2022 23h15m EDT

Telescope: Celestron C11 @ f/25, Orion Atlas EQ-G

Camera: ZWO ASI462MC, 2.5x Powermate

Filter: Highpoint Scientific IR Filter

Seeing: poor to fair, 2-3/5

Exposure: 5% of 5min @ 15msec, gain 400, saved as RAW8, SER

Histogram: 75%

White Balance: Nebulosity Automatic

Software: SharpCap Pro, AutoStakkert, Registax, Nebulosity, WinJUPOs, Photoshop

It has been quite a while since I have done any extensive planetary imaging, but I’m starting to get the hang of it. I wasn’t planning on imaging Saturn as the seeing wasn’t forecast to be very good, but it was better than I had expected. I wanted to test some camera settings and processing work flow that I am working on and I’m pretty happy with the results. A big part of this is getting comfortable with this fairly old (1994) C11 that I have been working with and it seems to be settling in nicely.

Saturn is well placed in the evening sky rising in the east as the sun set and high in the south by midnight.

Saturn – 9/6/2022 22h40m EDT

Saturn – 9/6/2022 22h40m EDT

Telescope: Celestron C11 @ f/25, Orion Atlas EQ-G

Camera: ZWO ASI462MC, 2.5x Powermate

Filter: Highpoint Scientific IR Filter

Seeing: poor, 2/5

Exposure: 5% of 5min @ 15msec, gain 400, saved as SER

Histogram: 70%

White Balance: Nebulosity Automatic

Software: SharpCap Pro, AutoStakkert, Registax, Nebulosity, Photoshop

This is my first image from the opening of the 2022 planetary imaging season. I still have lots to learn, but I’m off to a good start!

Saturn is well placed in the evening sky wising in the east as the sun set and high in the south by midnight.

M27 – Planetary Nebula in Vulpecula

M27 – Planetary Nebula in Vulpecula

Telescope: Meade 10” LX850 ACF @ f/8, Orion Atlas EQ-G

Camera: Canon EOS Ra

Filter: GSO IR Blocking Filter

Guide scope: Astro-Tech 60mm, ASI120MM Mini, PHD2

Exposure: 24x120sec, ISO 800, saved as Raw

Darks: Internal (Long Exposure Noise Reduction On)

Flats: 32×1/50sec, Tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, fair transparency, light haze

Lensed Sky Quality Meter: 18.7

Stacking: Mean with a 1-sigma clip.

White Balance: Nebulosity Automatic

Software: Backyard EOS, Deep Sky Stacker, Nebulosity, Photoshop

M27, the Dumbbell nebula, is an expanding shell of gas that was ejected from a sun-like star as it exhausted its hydrogen fuel. Swollen into a red giant, the star shed its outer shell while its core collapsed into a white dwarf. Fierce UV radiation from the collapsed core sets the surrounds gas aglow with the blue/green light of doubly ionized oxygen. The diameter of the nebula is about 1 light-year with an estimated age of 9,800 years. Located between Sagitta and Cygnus, M27 is fairly easy to find with a small telescope. Visually, it shows two lobes connected by a neck of nebulosity, giving the nebula its characteristic dumbbell shape.

M27 is currently high in the east after sunset.

M2 – Globular Cluster in Aquarius

M2 – Globular Cluster in Aquarius

Telescope: Meade 10” LX850 ACF @ f/8, Orion Atlas EQ-G

Camera: Canon EOS Ra, GSO IR Blocking Filter

Guide scope: Orion 50mm, ASI120MM Mini, PHD2

Exposure: 26x60sec, ISO 800, saved as Raw

Darks: Internal (Long Exposure Noise Reduction On)

Flats: 32x1sec, tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, poor transparency, haze, clouds

Lensed Sky Quality Meter: 18.1

Stacking: Mean with a 1-sigma clip.

White Balance: Nebulosity Automatic

Software: Backyard EOS, Deep Sky Stacker, Nebulosity, Photoshop

M2 is a big, beautiful globular cluster that is well placed in the eastern sky in late summer and early fall. It is an easy target for a small telescope. Under dark skies it can even be glimpsed without a telescope or even binoculars. M2 is about 37,500 light years away and lies beyond the galactic center. Like most globular clusters M2 is an ancient relic of the early universe with an estimated age of about 13 billion years.

M2 is currently well placed in the eastern sky during the early evening.

M22 – Meade 10” LX850 ACF First-light, EOS Ra

M22 – Meade 10” LX850 ACF First-light, EOS Ra

Telescope: Meade 10” LX850 ACF @ f/8, Orion Atlas EQ-G

Camera: Canon EOS Ra, GSO IR Blocking Filter

Guide scope: Orion 50mm, ASI120MM Mini, PHD2

Exposure: 46x30sec, ISO 800, saved as Raw

Darks: Internal (Long Exposure Noise Reduction On)

Flats: 32x1sec, tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, poor transparency, haze

Lensed Sky Quality Meter: 18.1

Stacking: Mean with a 1-sigma clip.

White Balance: Nebulosity Automatic

Software: Backyard EOS, Deep Sky Stacker, Nebulosity, Photoshop

M22 is one of several gorgeous globular clusters in and near Sagittarius and is one of the gems of the summer sky in the northern hemisphere. With an estimated distance of 10,600 light years it is one of the closer globulars in our galaxy. In many ways M22 should outshine M13, but it can get a bit lost among the stars near the Sagittarius star clouds and its light is dimmed by dust along the galactic plane. Still, it is large, bright, and easily resolves into this beautiful glow of stardust even in a modest telescope. In a large telescope it blossoms into a glorious sight.

M22 is currently well placed in the southern sky during the early evening.

NGC 7635 – The Bubble Nebula in Cassiopeia

NGC 7635 – The Bubble Nebula in Cassiopeia

Telescope: Astro-Tech 8” f/8 Ritchey-Chretien, Orion Atlas EQ-G

Camera: QHY 367c Pro, 0C, Baader Mk III MPCC

Filter: GSO IR Blocking Filter

Guide scope: Astro-Tech 60mm, ZWO ASI120MM mini, PHD2

Exposure: 33x300sec, gain 2800, offset 50, saved as FITS, dithered every 2 images

Darks: 32, 0C, gain 2800, offset 50, saved as FITS

Flats: 64x500ms, Tee shirt flats taken at dusk

Average Light Pollution: Red zone, Bortle 8, fair transparency

Lensed Sky Quality Meter: 18.6

Stacking: Average, 1 sigma clip

White Balance: Nebulosity Automatic

Software: SharpCap Pro, Deep Sky Stacker, Nebulosity, Photoshop

This is NGC 7635 is almost the inverse of a planetary nebula. Planetaries are expanding shells of gas shed from a dying star. The Bubble is formed from the intense radiation a hot blue star pushing out a spherical void in the surrounding gas and setting the hydrogen aglow with a beautiful red color. The Bubble looks like a delicate Christmas ornament on an unimaginable scale.

NGC 7635 rises in the northeast in the early evening and is high overhead at dawn.