In honor of the upcoming 10th Anniversary of Cassiopeia Observatory, here are some selected "showcase" astrophotographs from the tens of thousands of photos I have taken since 2009. They are presented in chronological order. Click a thumbnail to see a larger version.

Transit of Venus 5 June 2012 8" LX200-ACF D7000 DSLR	Northern Sky Star Trails 2 June 2013 D7000 DSLR 8mm fisheye lens	Crater Clavius 2 September 2014 8" LX200-ACF iPhone 5s
ISS-Sun Transit 6 November 2014 8" LX200-ACF D7000 DSLR	Craters Theophilus, Cyrillus, Catharina 24 May 2015 8" LX200-ACF iPhone 5s	International Space Station 20 June 2015 8" LX200-ACF D7200 DSLR
M101 Pinwheel Galaxy 12 March 2016 12" LX600 D7200 DSLR	M45 Pleiades 9 September 2016 12" LX600 D7200 DSLR	Moon on POD Dome 4 November 2016 D7200 DSLR 8mm Fisheye lens
M83 Southern Pinwheel Galaxy 21 May 2017 12" LX600 D7200 DSLR	Milky Way 28 May 2017 SkyTracker Pro D7200 DSLR 18mm lens	Total Solar Eclipse 21 August 2017 SkyTracker Pro D7200 DSLR 600mm lens
M16 Eagle Nebula 17 September 2017 12" LX600 D7200 DSLR	SpaceX Falcon 9 Launch 22 December 2017 D7200 DSLR 18mm lens	Perigee Total Lunar Eclipse 31 January 2018 D7200 DSLR 600mm lens
M31 Andromeda Galaxy 8 February 2018 SkyTracker Pro D850 DSLR 300mm lens	NGC2024 Flame Nebula 9 February 2018 12" LX600 D850 DSLR	NGC3628 Sarah's Galaxy 15 March 2018 12" LX600 D850 DSLR
Omega Centauri globular cluster 8 May 2018 12" LX600 D850 DSLR	M51 Whirlpool Galaxy 14 May 2018 12" LX600 D850 DSLR	M81 Bode's Galaxy 16 May 2018 12" LX600 D850 DSLR
M82 Cigar Galaxy 16 May 2018 12" LX600 D850 DSLR	NGC281 Pacman Nebula 11 September 2018 12" LX600 D850 DSLR	NGC7635 Bubble Nebula 11 September 2018 12" LX600 D850 DSLR
M42 Orion Nebula 3 January 2019 12" LX600 D850 DSLR	Orion 8 January 2019 SkyTracker Pro D850 DSLR 70mm lens	NGC1977 Running Man Nebula 7 February 2019 12" LX600 D850 DSLR
Zodiacal Light, Mars, Mercury 27 February 2019 D850 DSLR 8mm fisheye lens	IC434 Horsehead Nebula 22 March 2019 5 minutes, ISO 6400 Prime Focus + Focal Reducer	NGC2359 Thor's Helmet Nebula 11 February 2021 D850 DSLR 5 minutes each, ISO 12800 Prime Focus, UHC, OIII filters
M1 Crab Nebula 14 February 2021 D850 DSLR 5 minutes each, ISO 12800 Prime Focus, UHC, OIII, HA filters	Milky Way 20 August 2019 f/2.8, 20 seconds, ISO 3200 FL 24mm	NGC7023 Iris Nebula 20 August 2019 3 minutes, ISO 5000 Prime Focus + Focal Reducer
Moon on Dome 13 October 2019 iPhone 11 Pro Max Normal Lens, Night Mode	M87 Galaxy Jet 15 April 2020 iPhone 11 Pro Max afocal 81X	NGC3628 Sarah's Galaxy 26 April 2020 10 minutes (stacked), ISO 5000 Prime Focus
Crescent Venus on Dome 12 May 2020 D850 DSLR f/5.6, 20 seconds, ISO 6400 24mm lens	Omega Centauri globular cluster 26 May 2020 D850 DSLR f/5.6, 30 seconds, ISO 4000 Piggyback FL 300mm	Bighorn Fire & Omega Centauri 16 June 2020 f/5, 4 seconds, ISO 3200 FL 150mm
M8 Lagoon Nebula 6 September 2020 3 minutes, ISO 6400 Prime Focus + HA, OIII filters	NGC6960 Western Veil Nebula 9 October 2020 5 minutes each, ISO 6400 Prime Focus + UHC, HA, OIII filters	NGC6992 Eastern Veil Nebula 9 October 2020 5 minutes each, ISO 6400 Prime Focus + UHC, HA, OIII filters
NGC7293 Helix Nebula 14 October 2020 5/10 minutes each, ISO 6400 Prime Focus + UHC, HA, OIII filters	Jupiter-Saturn Conjunction 6' 09" Daytime 21 December 2020 iPhone 11 Pro Max Afocal 174X	Jupiter-Saturn Conjunction 6' 22" 21 December 2020 D850 DSLR Prime Focus + 4X Powermate
Jupiter-Saturn Conjunction 6' 22" Composite Comparison 21 December 2020 iPhone 11 Pro Max Afocal 81X	NGC2237 Rosette Nebula 17 January 2021 D850 DSLR 5 minutes, ISO 12800 Prime Focus + Focal Reducer, UHC filter	NGC2264 Cone Nebula, Fox Fur Nebula, Christmas Tree Cluster 4 February 2021 D850 DSLR 5 minutes, ISO 6400 Prime Focus + Focal Reducer, UHC filter
M82 Cigar Galaxy 25 February 2021 iPhone 11 Pro Max Afocal 163X	M81 Bode's Galaxy & M82 Cigar Galaxy 10 March 2021 D850 DSLR 20 minutes (stacked), ISO 12800 Prime Focus + Focal Reducer + UHC filter	ISS 18 March 2021 D850 DSLR 1/2000sec, ISO 1600 Prime Focus
ISS 18 March 2021 D850 DSLR 1/2000sec, ISO 1600 stack 10 frames, magnified 2X Prime Focus	IC405 Flaming Star Nebula 3 April 2021 D850 DSLR 30 minutes (stacked), ISO 12800 Focal Reducer, UHC filter	NGC3628 Sarah's Galaxy 9 April 2021 D850 DSLR 30 minutes (stacked), ISO 12800 Prime Focus + UHC filter
Sharpless 2-101 Tulip Nebula 1 October 2021 D850 DSLR 30 minutes (stacked), ISO 12800 Prime Focus + Focal Reducer, UHC filter	Gegenschein 10 October 2021 D850 DSLR f/2.8, 40 seconds, ISO 3200 FL 14mm UWA	Rocket Launch 27 October 2022 D850 DSLR f/2.8, 1/80sec, ISO 3200 FL 70mm
	NGC253 Sculptor Galaxy 24 December 2022 Prime Focus