The Cave Nebula (Sh 2-155) is a diffuse nebula in Cepheus within a larger cloud complex of various nebula types. Two nights of broadband followed by HaOIII data revealed dusty, reflective and emissive features surrounding the nebula in strong contrast with each other. #Astronomy #Astrophotography

I love how easy it is to spot Polaris B even through small-ish refractors. In this 5-sec snapshot during polar alignment you can visually count the pixels to gauge separation from its bigger brother. ~10 pixels, which is exactly ~18-19" given a pixel scale of 1.85"/px😄 #Astronomy

The Crescent Nebula is a popular DSO in Cygnus, known for its distinctive appearance embedded within the Swan's rich nebulosity. The 103APO combined with small pixels on the MiniCAM8 revealed nice details in the gas shells. Modified HOO + a little SII, ~4.5 h exposure #Astronomy #Astrophotography

#Aurora just now from Keswick north of Toronto! #Astrophotography

Just a single 5-min Ha sub on the Crescent from the IMX585-equipped MiniCAM8M😍

Getting some shots of IC 59. Looks like I finally met Navi the reflection maker😆

The Veil Nebula, Pickering's Triangle and nearby nebulosity formed the western part of the Cygus Loop (Sh2-103) - an expansive supernova remnant ~2500 ly away that remembers the distant death of a massive star. 10 hours of Ha/OIII data captured on the Askar 103APO #Astronomy #Astrophotography

As part of learning PixInsight, I decided to revisit M33, the Triangulum Galaxy, and experiment with continuum subtraction on some OSC Ha data from a new setup around the Askar 103APO scope. #Astronomy #Astrophotography

The Sadr Region - a nebulous region at the heart of Cygnus the Swan. The Crescent Nebula swims over sprawling hydrogen-alpha clouds of the Sadr Region like a cosmic jellyfish. #Astrophotography

Since the #IM2 lander uses very wide angle fisheye lenses, I was able to make a partial 360° panorama from the image. This gives a slightly better sense of scale and direction. www.360cities.net/image/im-2-s...

Got 5 hours of Ha data last night and here is the updated image! #Astronomy #Astrophotography

The Local Group's third-largest member after Andromeda and our home - the Triangulum Galaxy through my little scope. #Astronomy #Astrophotography Around 5.5 hours of broadband data from last night, thinking about adding some additional Ha data when the sky clears up again.

STEVE: A Glowing River over France - © Louis LEROUX-GÉRÉ - Pic - HD Pic - About Astronomy Picture Of the Day #astrophotos Maintained by @shinyakato.dev 🔭 READ MORE 🔭

Comet #TsuchinshanATLAS revisited tonight in Keswick, ON, Canada. It's displaying some green head and contrasting details in the dust tail. #Astronomy #Astrophotography

Comet #TsuchinshanATLAS is starting to display some noticeable structures towards the head

My longest project yet, a little over 100hrs total on Andromeda. 62.5h LRGB and another 39.5h on Ha. Shot from Starfront Remote Observatories with a RedCat51, ASI533MM Pro, and Antlia HaLRGB filters. #astrophotography 🔭

I’m a university professor of astronomy and sometimes I see the Moon and think “man… that thing is fucking weird, just hanging in the sky like that” 🌖🔭

‘tis the season to repost my shot of the Ghost of Cassiopeia 👻, a reflection and emission nebula about 550 light years away. Shot this about a year ago from my back yard in central Virginia. Spooky, eh? #astrophotography #photography

A celestial coast on the outskirts of Cassiopeia and Cepheus: the Cave Nebula, the Northern Lagoon Nebula, the Bubble Nebula, the Lobster Claw Nebula, the Scorpion Cluster and many other DSOs in a compact field of view... #Astronomy #Astrophotography

Intelsat's IS-33e communications satellite has undergone a breakup event in geostationary orbit, with US Space Force reporting 20 tracked (but not yet cataloged) debris objects. The satellite was launched on 2016 Aug 24 and is over the Indian Ocean at 60.1E; breakup was 0430 UTC Oct 19.

Comet C/2023 A3 Tsuchinshan–ATLAS over Ned's Point Light in Mattapoisett, MA, with a bit of bonus Milky Way in the shot. Composite of two frames. #photography #astrophotography #comet #nightsky #starryskiesabove #nedspoint #lighthouse #mattapoisett #massachusetts

Meanwhile. Just passing through...

The bright HII region Sh2-117 at the tail of the Swan, where the famous North America Nebula and Pelican Nebula are located. This stack from last night is only 1.7 hours of exposure with an almost full Moon overhead. #Astronomy #Astrophotography

Spectacles on the border of Gemini and Orion - The Monkey Head Nebula, Jellyfish Nebula and Shoe-Buckle Cluster #Astronomy #Astrophotography

Tried to push my little refractor to its limit and here is the coma of #TsuchinshanATLAS from last night! #Astronomy #Astrophotography #Comet

这边也发一张

#Supermoon It's almost like daylight at midnight

C/2023 A3 (Tsuchinshan–ATLAS)☄️

Comet #TsuchinshanATLAS last night from north of Toronto. The tail appearance is evolving quickly as Earth's perspective changes just after crossing its orbital plane. 50 x 20", 2024-10-16 19:47-20:10 UTC-4 ZWO ASI533MC Pro + Rokinon 135mm F/2 Cook's Bay, Ontario, Canada