Deep Space
Comet C/2025 K1 (ATLAS) A non-periodic comet, first spotted in May 2025. As it moved away from the Sun in November 2025, the comet disintegrated into several fragments, and fragments A+B+C may be ejected from the Solar System. The image was captured on 15.11.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. The following filters were used: L 30×20″, R 5×20″, G 5×20″, B 5×20″, with a total exposure of 15 minutes.
Comet 3I/ATLAS (C/2025 N1) — an interstellar comet discovered on July 1, 2025, by the ATLAS station. The image was captured on 15.11.2025 between 6 and 7 a.m. at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. LRGB filters were used, with a total exposure of 60 minutes.
Comet C/2025 R2 (SWAN) — a long-period and dynamically old comet that arrived from the distant outskirts of the Solar System. The image was captured on 03.11.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. An LRGB filter set was used, with a total exposure of 62.5 minutes.
Comet C/2025 A6 (Lemmon). The image was captured on 03.11.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. RGB filters were used, with a total exposure of 285 seconds.
Comet C/2025 A6 (Lemmon) — a non-periodic comet with an orbital period of about 1350 years. Its perihelion was in the second half of the 7th century. The image was captured on 31.10.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. A Luminance filter was used, with a total exposure of 350 seconds.
The "Pacman Nebula NGC 281" — an emission nebula in the constellation Cassiopeia. It is a region of ionized hydrogen where active star formation is taking place. The image was captured from 23.09.2025 to 26.09.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HSO filters were used, with a total exposure of 320 minutes.
The "Fossil Footprint" Nebula NGC 1491 — an emission nebula in the constellation Perseus. The image was captured on 17.09.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HSO filters were used, with a total exposure of 74 minutes.
The "Wizard" Nebula NGC 7380 — an open cluster in the constellation Cepheus. The image was captured from 25.06.2025 to 26.06.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HSO filters were used, with a total exposure of 120 minutes.
Nebula NGC 6995 — an emission nebula in the constellation Cygnus. It is part of the large Veil Nebula (on the northern side). The image was captured on 29.05.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HS filters were used, with a total exposure of 88 minutes.
Star cluster M 5 (NGC 5904) — a globular star cluster in the constellation Serpens. The image was captured on 16.05.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. An LRGB filter set was used, with a total exposure of 700 seconds.
Galaxy NGC 2903 — a nearby isolated barred spiral galaxy located in the constellation Leo. The image was captured on 24.03.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. A Luminance filter was used, with a total exposure of 45 minutes.
The Pinwheel Galaxy M 101 (NGC 5457) — a spiral galaxy in the constellation Ursa Major. The image was captured on 09.02.2025 at the S. A. Kolobov Observatory using a MEADE LX85 8" F/4 NEWTONIAN ASTROGRAPH OTA telescope on an ASTROSIB AVM-700 mount with a QHY294M-Pro astrocamera. RBV filters were used, with a total exposure of 37 minutes.
Comet C/2023 A3 (Tsuchinshan — ATLAS). The image was captured using a Canon EOS 550D camera on an AT-1 mount. The result of stacking 10 frames, each with a 10-second exposure. Location: the shore of Lake Muldakkul in the Chelyabinsk region.
Star cluster M 67 (Golden Eye, Royal Cobra). An open star cluster in the constellation Cancer. The image was captured on 27.02.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. RGB filters were used, with a total exposure of 900 seconds.
Galaxies M 65 (NGC 3623) and M 66 (NGC 3627). Spiral galaxies in the constellation Leo. The image was captured on 24.03.2025 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. A Luminance filter was used, with a total exposure of 900 seconds.
The "Bubble Nebula" NGC 7635 — an emission nebula in the constellation Cassiopeia. The image was captured on 03.09.2024 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. An RGB filter was used, with a total exposure of 100 minutes.
The "Monkey Head" Nebula NGC 2174 — an emission nebula in the constellation Orion. The image was captured on 09.02.2025 at the S. A. Kolobov Observatory using a MEADE LX85 8" F/4 NEWTONIAN ASTROGRAPH OTA telescope on an ASTROSIB AVM-700 mount with a QHY294M-Pro astrocamera. RBV filters were used, with a total exposure of 45 minutes.
The "Friendly Ghost Casper" Nebula M 78 (NGC 2068) — a reflection nebula observed in the constellation Orion, located 1350–1600 light-years away. The image was captured on 27.11.2024 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. RGB filters were used, with a total exposure of 70 minutes.
The Helix Nebula (NGC 7293) — a planetary nebula in the constellation Aquarius at a distance of 650 light-years from the Sun. The image was captured on 30.09.2024 at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HSO filters were used, with a total exposure of 96 minutes.
Galaxy M 64 (NGC 4826, Black Eye, Sleeping Beauty). A spiral galaxy in the constellation Coma Berenices. Apparent magnitude: 8.5. Distance: 17 million light-years.
A globular star cluster in the constellation Hercules. Contains 300 thousand stars. It is one of the brightest deep-sky objects in the Northern Hemisphere. Apparent magnitude: 5.8. Diameter: 145 light-years. Distance: 25,000 light-years.
The Pleiades star cluster (M 45, Seven Sisters, Subaru)
The Fluffy Butterfly star cluster (NGC 654). An open star cluster in the constellation Cassiopeia.
The Dumbbell Nebula (M 27, NGC 6853). A planetary nebula in the constellation Vulpecula. The image was captured using the ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera.
The Cocoon Nebula (IC 5146). An open star cluster in the constellation Cygnus, embedded in a reflection-emission nebula. Total exposure 120 minutes. RGB filters.
The Orion Nebula in false colors
The Crescent Nebula (NGC 6888). An emission nebula in the constellation Cygnus. The image was captured using Hα, OIII, and SII narrowband filters. Total exposure time was 30 minutes.
The Crescent Nebula (NGC 6888) An emission nebula in the constellation Cygnus. Apparent magnitude: 7.4 ∙ Diameter: 25 light-years ∙ Distance: 5,000 light-years ∙ Total exposure: 140 minutes
Caroline's Rose Star Cluster (NGC 7789) An open star cluster in the constellation Cassiopeia. Apparent magnitude: 6.7 ∙ Diameter: 50 light-years ∙ Distance: ~8,000 light-years
The vicinity of Sadr (γ Cygni): An H II region surrounding the star Sadr (Gamma Cygni)
The Andromeda Galaxy (M31, NGC 224) A spiral galaxy in the constellation Andromeda. Apparent magnitude: 3.4 ∙ Distance: 2.5 million light-years ∙ Diameter: 220,000 light-years
The Veil Nebula (Eastern Section - NGC 6992) Apparent magnitude: 7.0 ∙ Diameter: 100 ly (entire nebula) ∙ Distance: 2,400 ly ∙ Total exposure: 630 seconds
Globular cluster in the constellation Hercules. It contains 300,000 stars. It is one of the brightest deep-sky objects in the Northern Hemisphere. Apparent magnitude: 5.8. Diameter: 145 light-years. Distance: 25,000 light-years.
M64. Spiral galaxy observed in the constellation Coma Berenices. Apparent magnitude: 8.5. Distance: 17 million light-years.
Pleiades An open star cluster in the Taurus constellation. Apparent magnitude: 1.2 Diameter: 35 light-years Distance: 444 light-years Total exposure: 108 minutes
The M51 Galaxy in the constellation Canes Venatici (Whirlpool Galaxy)
The M57 Nebula in the constellation Lyra (Ring Nebula)
The M64 Galaxy in the constellation Coma Berenices (Black Eye Galaxy / Evil Eye Galaxy)
The M65 Galaxy in the constellation Leo
The Andromeda Galaxy (M31) in the constellation Andromeda
The Andromeda Galaxy (M31) in the constellation Andromeda
The M42 Nebula in the constellation Orion (Orion Nebula)
The M27 Nebula in the constellation Vulpecula (Dumbbell Nebula)
The M33 Galaxy in the constellation Triangulum (Triangulum Galaxy / Pinwheel Galaxy)
The M13 star cluster in the constellation Hercules (Great Globular Cluster in Hercules)
The NGC 2237 Nebula in the constellation Monoceros (Rosette Nebula)
The M42 Nebula in the constellation Orion (Orion Nebula)
The M42 Nebula in the constellation Orion (Orion Nebula)
The M1 Nebula in the constellation Taurus (Crab Nebula)
The IC 434 Nebula in the constellation Orion (Horsehead Nebula) and the NGC 3372 Nebula in the constellation Carina (Carina Nebula).
NGC 3372 Nebula in the constellation Carina (Carina Nebula)
IC 434 Nebula, in the constellation Orion (Horsehead Nebula)
The IC 434 Nebula in the constellation Orion (Horsehead Nebula)
