Samsung S23 Ultra Astro Photos

The star images below were shot with the S23 Ultra on a tripod. Some photos were shot with extra optical aid (monocular, binocular or a telephoto lens). Either the 4 min astro-mode or the Pro mode was used. Sharp star images require the focus for infinity distance be manually adjusted carefully. The focus setting for the cameras used (x1 W, x3 TP, and x10 Periscope without extra digital zoom) were different (0.90, 0.70 and 0.62 respectively for my smartphone). Photos were taken in a Bortle 4 location (rural/suburban transition). Unless specified otherwise, the images below are uncropped with the default 4:3 aspect ratio and 12 MP sensor. The default (without extra digital zoom) FOV angular dimensions are approximately:
     72° x 57° (x1 W camera)
     28° x 21° (x3 TP camera)
     8.6° x 6.5° (x10 TP Periscope camera)

Full Moon Sep 7,8 2025
SV555 Prime vs RF70-200mm Zoom
Moon and Smoke Polution July 2025
Big Dipper/Summer Triangle July 2025
Canon RF70_200mm lens, July, 2025
SVBONY SV555 Astrograph lens, June 26, 2025
Moon, June 2,3 2025
Rokinon 135mm f/2 lens, May 16, 2025
SA401 APO and Prime Focus, May 5, 2025
Sunspots April 12, 2025
AZ-GTi Mount & SV406P Scope Mar 17,19 2025
Total Lunar Eclipse, Mar 12, 2025
Waxing Gibbous Moon, Mar 11, 2025
Mercury, Venus & Moon Mar2, 2025
Mars, Jupiter & Uranus Feb 13, 2025
SVBONY Spotting Scope 80mm ED vs 100mm APO
Venus/Saturn, Jan 11, 2025
Jupiter/Pleiades/Moon, Jan 5, 2025
Mars/Gemini/Procyon, Jan 3, 2025
Christmas Day & Mars Dec 25, 2024
Winter Solstice, Dec21, 2024
Jupiter/Venus December, 2024
Moons of December, 2024
Orion Nebula Dec 2, 2024
Canis Major/Orion & Clouds, Nov 29/2024
Venus at Dusk, Nov 26/2024
SVBONY ED 20-60x80mm Monocular, Nov/2024
Comet C/2023 A3 ATLAS Oct, 2024
Orion Oct 11, 2024
Northern Lights Oct10, 2024
Pleiades September 30, 2024
Moons of September, 2024
Summer Triangle, Cass, Peg Aug 31, 2024
Moons of August, 2024
Resolution Test Image
Gosky 12x55mm Monocular
FOV & Focus
Freewell 1.7 Telephoto
S23 Ultra Periscope Camera Resolution
Andromeda Galaxy
Big Dipper & Whirlpool Galaxy 5/6/2024
Sky Simulations 24 hr timelapse
Procyon Region 4/26/2024
Coma Star Cluster & Virgo Region 4/25/2024
Sagitarrius & Scorpius 4/7/2024
Comet 12P/Pons-Brooks 4/7/2024
Most Distant Naked-Eye Visible Star 3/28/2024
Moon Color 3/25/2024
Infinity Focus Study: W1 Camera 3/20/2024
Moon: Photo vs Pro Mode 3/23/2024
Star-Trailing & Resolution 5/20/2024
Scorpius 3/16/2024
Moon & Jupiter Setting 3/13/2024
Beehive Cluster M44 Praesepe 3/12/2024
Orion & Pleiades 3/4/2024
Orion Zoom In 3/1/2024
Canis Major & Sirius 3/1/2024
Big Dipper Upright 3/1/2024
Moon Morning 2/29/2024
Moon and Pleiades 3° approach 2/16/2024
Orion & Winter Triangle 2/14/2024
Orion & Pleiades & Composite Trio 12/13/2023
Dippers & Leo 11/20/2023
Orion 11/12/2023
Big Dipper 10/30/2023
Orion, Perseus, Auriga 10/23/2023
Andromeda Galazy/Lyra 10/18/2023
Orion/Auriga/Cassiopeia 10/17/2023
Orion Neighbourhood Stars 10/16/2023
Orion/Pleiades/Ring Nebula details 10/4/2023
Pleiades/Moon 2° Alignment 10/2/2023
Jupiter/Moon 2° Alignment 10/1/2023
Hyperlapse Stars 9,10/2023
Orion, Taurus, Andromeda 9/20/2023
Lyra, Vega and Ring Nebula 9/4/2023
Cassiopeia 9/6/2023
Summer Triangle 9/6/2023
Milky Way and Sagittarius Teapot 9/6/2023
Double Star Resolution Test 9/9/2023
Pegasus & M31 7/30/2023
Big Dipper 8/27/2023
Summer Triangle/Lyra 8/10/2023



Clickthrough images in links above