StarCatcher 🇨🇦

Bravo

C/2025 A6 (Lemmon) was discovered as an asteroidal object with an apparent magnitude of about 21.5 by the Mount Lemmon Survey in images obtained on 3 January 2025 when it was 4.5 AU from the Sun. Consequently, precovery images by PanSTARRS dating from 12 November 2024 were found.[2] The object was found to have a very condensed coma, 2.2 arcseconds across. A short tail, two arcseconds long was found in images from 21 February 2025.[7] When first discovered the comet was expected to only brighten to apparent magnitude 10, but is now expected to brighten to apparent magnitude of about 3.5, which would make it about 400 times brighter than original expectations.[8] After being hidden in the Sun's glare during June and July as it came to solar conjunction on 2 July 2025,[9] the comet was spotted again in the morning sky, significantly brighter than predicted. On 12 August the comet had a coma about one arcminute across and an apparent magnitude of 13.9. By August 19, when the comet was 1.7 AU from the Sun, its total magnitude (nucleus+coma) was estimated to be 11, but the comet did not show an obvious tail.[10] A short spiky tail was visible in images from 25 August.[11] The future brightness of the comet is unknown, but the comet is not expected to have been in an outburst when it exited solar conjunction.

🧵(2/2) As always, here is are a starless version of the reprocessed data to enjoy the sheer beauty of the object.

#Astrophotography #Space #DeepSpace #Comet #Astronomy

C/2025 A6 (Lemmon) is a non-periodic comet discovered by the Mount Lemmon Survey in images obtained on 3 January 2025. It has an inbound orbital period of about 1,350 years and will pass perihelion on 8 November 2025 when it will be 0.53 AU (79 million km; 49 million mi) from the Sun. This perihelion passage will reduce the orbital period to about 1,150 years. It makes its closest approach to Earth on 21 October 2025 and may be visible to the naked eye 42 degrees from the Sun after sunset. As of 24 October 2025, the comet is about apparent magnitude 4.2,[3] and the nucleus and coma are visible in binoculars about 12 degrees above Arcturus and near the magnitude 2.5 star Izar. (The handle of the Big Dipper points towards Arcturus.) Both Arcturus and the comet may be visible in the same field of view using low power binoculars such as 7x35s.

🧵(1/2) Comet C/2025 A6 Lemmon.I reprocessed my data to extract more of the tail. It's slightly better.

Shot taken on 2025-10-11 from my backyard.

🔭 William Optics Pleiades 111
📷 ZWO ASI 2600
Total exposure: 31 x 30s (15m30s)

#Astrophotography #Space #DeepSpace #Comet #Astronomy

Outstanding work. Bravo. What gear did you use if I may ask ?

Good work Gordon. This target is notoriously hard to squeeze detail out of 👍

Thanks Thomas 🙏

Thanks Emil 🙏

The Pleiades also known as Seven Sisters and Messier 45 (M45), is an asterism of an open star cluster containing young B-type stars in the northwest of the constellation Taurus. At a distance of about 444 light-years, it is among the nearest star clusters to Earth and the nearest Messier object to Earth, being the most obvious star cluster to the naked eye in the night sky. It contains the reflection nebulae NGC 1432, an HII region, and NGC 1435, known as the Merope Nebula. Around 2330 BC the Pleiades marked the vernal point. Due to the brightness of its stars, the Pleiades is viewable from most areas on Earth, even in locations with significant light pollution. The cluster is dominated by hot blue luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be leftover material from their formation, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing. This dust cloud is estimated to be moving at a speed of approximately 18 km/s relative to the stars in the cluster. Computer simulations have shown that the Pleiades were probably formed from a compact configuration that once resembled the Orion Nebula. Astronomers estimate that the cluster will survive for approximately another 250 million years, after which the clustering will be lost due to gravitational interactions with the galactic neighbourhood. Together with the open star cluster of the Hyades, the Pleiades form the Golden Gate of the Ecliptic. The Pleiades have been said to "resemble a tiny dipper," and should not be confused with the "Little Dipper," or Ursa Minor.

The Pleiades (M45) AKA the Seven Sisters, in the northwest constellation Taurus. It is also the inspiration for the Subaru logo.

Shot taken on 2025-10-11 from my backyard.

🔭 William Optics Pleiades 111
📷 ZWO ASI 2600
Total exposure: 45 x 120s (1h30)

#Astrophotography #Space #DeepSpace #Astronomy

Starless version of C/2025 A6 (Lemmon), a non-periodic comet discovered by the Mount Lemmon Survey in images obtained on 3 January 2025. It has an inbound orbital period of about 1,350 years and will pass perihelion on 8 November 2025 when it will be 0.53 AU (79 million km; 49 million mi) from the Sun. This perihelion passage will reduce the orbital period to about 1,150 years. It makes its closest approach to Earth on 21 October 2025 and may be visible to the naked eye 42 degrees from the Sun after sunset. As of 12 October 2025, the comet is about apparent magnitude 5.6,[6] and is visible in binoculars about 15 degrees (approximately one and a half fists) below the cup of the Big Dipper. It is currently about 2 degrees southwest of the star Psi Ursae Majoris.

A zoomed in view of Starless version of C/2025 A6 (Lemmon), a non-periodic comet discovered by the Mount Lemmon Survey in images obtained on 3 January 2025. It has an inbound orbital period of about 1,350 years and will pass perihelion on 8 November 2025 when it will be 0.53 AU (79 million km; 49 million mi) from the Sun. This perihelion passage will reduce the orbital period to about 1,150 years. It makes its closest approach to Earth on 21 October 2025 and may be visible to the naked eye 42 degrees from the Sun after sunset. As of 12 October 2025, the comet is about apparent magnitude 5.6,[6] and is visible in binoculars about 15 degrees (approximately one and a half fists) below the cup of the Big Dipper. It is currently about 2 degrees southwest of the star Psi Ursae Majoris.

🧵(2/2) As always, here is are a starless version and a zoomed-in view of the comet to enjoy the sheer beauty of the object.

#Astrophotography #Space #DeepSpace #Comet #Astronomy

C/2025 A6 (Lemmon) is a non-periodic comet discovered by the Mount Lemmon Survey in images obtained on 3 January 2025. It has an inbound orbital period of about 1,350 years and will pass perihelion on 8 November 2025 when it will be 0.53 AU (79 million km; 49 million mi) from the Sun. This perihelion passage will reduce the orbital period to about 1,150 years. It makes its closest approach to Earth on 21 October 2025 and may be visible to the naked eye 42 degrees from the Sun after sunset. As of 12 October 2025, the comet is about apparent magnitude 5.6,[6] and is visible in binoculars about 15 degrees (approximately one and a half fists) below the cup of the Big Dipper. It is currently about 2 degrees southwest of the star Psi Ursae Majoris.

🧵(1/2) Comet C/2025 A6 Lemmon is a non-periodic comet discovered by the Mount Lemmon Survey on 3 January 2025.

Shot taken on 2025-10-11 from my backyard.

🔭 William Optics Pleiades 111
📷 ZWO ASI 2600
Total exposure: 31 x 30s (15m30s)

#Astrophotography #Space #DeepSpace #Comet #Astronomy

Yes indeed and in this case, it was done with a small telescope with a 61mm aperture and 300mm focal length

Thanks Susan 🙏

Thanks Peter

Starless version of NGC 7822 is a star-forming emission nebula and the "Cosmic Question Mark" nebula located in the constellation Cepheus, approximately 3,000 light-years from Earth. It's a vibrant region containing the Sharpless 171 emission region and the young Berkeley 59 star cluster, illuminated by hot, young stars that ionize the surrounding gas and dust, forming intricate structures.

Detail of the starless version of NGC 7822

Detail of the starless version of NGC 7822

🧵(2/2) As always, here is are a starless version and 2 zoomed-in views of the Nebula to enjoy the sheer beauty of the object.

#Astrophotography #Space #DeepSpace #Astronomy

NGC 7822 is a star-forming emission nebula and the "Cosmic Question Mark" nebula located in the constellation Cepheus, approximately 3,000 light-years from Earth. It's a vibrant region containing the Sharpless 171 emission region and the young Berkeley 59 star cluster, illuminated by hot, young stars that ionize the surrounding gas and dust, forming intricate structures. Key Features Location: Constellation Cepheus. Distance: About 3,000 light-years from Earth. Composition: A complex of emission regions, including Sharpless 171, and a young open star cluster known as Berkeley 59. Star Formation: It is a stellar nursery where massive, hot stars are actively forming. Illumination: Intense radiation from these hot stars ionizes the surrounding hydrogen gas, causing it to glow. Structures: Stellar winds from these stars create "pillar-like" structures and intricate dust lanes within the nebula.

🧵(1/2) NGC 7822 is a star-forming emission nebula located in the constellation Cepheus, ~3,000 light-years from Earth.

Shot taken on 2025-10-05 from my backyard.

🔭 William Optics Red Cat 61
📷 ZWO ASI 2600 + L-Extreme
Total exposure: 13 x 600s (2h10)

#Astrophotography #Space #DeepSpace #Astronomy

Just to make things clear, the Andromeda galaxy is visible all year from the northern hemisphere. Always.

The Moon this evening at 57% illumination (Waxing Gibbous 8.01 days old). 🔭 🧪 🎨 Shot taken on 2025-09-31 from my backyard. Moon Distance: 395,789.39 km Telescope: SCT 8 in Camera: ZWO 2600 MC OSC 10% best of 5000 exposures stacked Phase: Waxing Gibbous Illumination: 57% Moon Age: 8.01 days Moon Angle: 0.50 Moon Distance: 395,789.39 km Sun Angle: 0.53 #Astrophotography #Space #Moon #MoonHour #Planetary #Astronomy

The Moon this evening at 57% illumination (Waxing Gibbous 8.01 days old). 🔭 🧪 🎨

Shot taken on 2025-09-31 from my backyard.

Moon Distance: 395,789.39 km

Telescope: SCT 8 in
Camera: ZWO 2600 MC OSC
50 best of 500 exposures stacked

#Astrophotography #Space #Moon #MoonHour #Planetary #Astronomy

Probably less than here

Thanks Rob 👍

They probably are...

Thanks John 🙏. It will get better as I add time to it.

Starless version of The Andromeda Galaxy (M31). It is the closest major spiral galaxy to our Milky Way, located about 2.5 million light-years away in the constellation Andromeda. It is visible to the naked eye as a faint, fuzzy spot and contains roughly a trillion stars. Astronomers study Andromeda to better understand the evolution of spiral galaxies, including our own Milky Way, and it is a crucial target for research into dark matter.

A closer look a the Starless version of The Andromeda Galaxy (M31). It is the closest major spiral galaxy to our Milky Way, located about 2.5 million light-years away in the constellation Andromeda. It is visible to the naked eye as a faint, fuzzy spot and contains roughly a trillion stars.

🧵(2/2) As always, here she is with no stars and a zoomed-in version of the galaxy to enjoy the sheer beauty of the object. Remember that the light captured that evening took 2.5 millions years to get to us.

#Astrophotography #Space #DeepSpace #Astronomy

The Andromeda Galaxy (M31) is the closest major spiral galaxy to our Milky Way, located about 2.5 million light-years away in the constellation Andromeda.

🧵(1/2) The Andromeda Galaxy (M31) our neighbour, located about 2.5 million light-years away. This is a work in progress.

Shot taken on 2025-09-21 from my backyard.

🔭 William Optics Red Cat 61
📷 ZWO ASI 2600
Total exposure: 30 x 180s (1h30)

#Astrophotography #Space #DeepSpace #Astronomy

Happy birthday Sir and I wish you many more revolution around the Sun.

Thanks River Man 🙏

Thanks Peter 🙏

Starless version of IC 1396, a large emission nebulae, a region of ionized gas, located in the constellation Cepheus about 2,400 light years away from Earth.

Zoomed in version of the starless image of IC 1396

Zoomed in version of the starless image of IC 1396

🧵(2/2) As always, here is a starless and 2 zoomed-in versions of the Nebula to enjoy the sheer beauty of the object.

#Astrophotography #Space #DeepSpace #Astronomy

IC 1396 is a large emission nebulae, a region of ionized gas, located in the constellation Cepheus about 2,400 light years away from Earth.[1] IC 1396 is illuminated and ionized by a very bright, massive multiple star HD 206267 at its center, except for dense globules that can protect themselves from the star's harsh ultraviolet rays. This hierarchical triple star system has two members that form a spectroscopic binary that orbit each other with a period of 3.7 days, while a third member lies further away—it is unclear whether this third member is gravitationally bound to the pair. The system is emitting a stellar wind that reaches an exceptional velocity of 3,225 km/s, among the highest measured for stars of this type.[2] Jutting from the rim of the nebula is IC 1396A, commonly called the Elephant's Trunk Nebula, a dark, dense globule with a bright, sinuous rim being illuminated by HD 206267.[3]

🧵(1/2) IC 1396 is an emission nebulae, located in the constellation Cepheus about 2,400 light years away from Earth.

Shot taken on 2025-09-19 from my backyard.

🔭 William Optics Red Cat 61
📷 ZWO ASI 2600 + L-Extreme
Total exposure: 45 x 300s (3h45)

#Astrophotography #Space #DeepSpace #Astronomy

Starless version of IC 1396, a large emission nebulae, a region of ionized gas, located in the constellation Cepheus about 2,400 light years away from Earth.

Detail of a Starless version of IC 1396, a large emission nebulae, a region of ionized gas, located in the constellation Cepheus about 2,400 light years away from Earth.

Detail of a Starless version of IC 1396, a large emission nebulae, a region of ionized gas, located in the constellation Cepheus about 2,400 light years away from Earth.

🧵(2/2) As always, here is a starless and 2 zoomed-in versions of the Nebula to enjoy the sheer beauty of the object.

#Astrophotography #Space #DeepSpace #Astronomy

VDB 139, CED 187, CL COLLINDER 427, Iris Nebula and LBN 475 - astrophotography by Jean_Legros VDB 139, CED 187, CL COLLINDER 427, Iris Nebula and LBN 475 - astrophotography by Jean_Legros

It also took me several attempts to get something

telescopius.com/pictures/vie...