Tessera

Tonights transit is WASP-10b, got the full data set now, pleased again with this, lines up well with predictions, slighty deeper transit depth at 31ppt instead of 25ppt, but the timing and duration are bob on almost. Imaged from my backyard :) #astronomy #exoplanet

Plot of a transit of an exoplanet in front of its star showing the dip in light

Something very satisfying watching tha data roll in live of the transit of an Exoplanet in front of its star. This is WASP-10b, a Jupiter sized planet, the transit takes about 2h14m and should be 2.5% in depth. The data is close to the prediction shown by the red lines :) #exoplanet #astronomy

plot showing the light dip of a star due to a planet passing in front of it.

I tried a slightly harder target, this is the transit of Qatar-9b. This is 700 light years away, its star is a Mag 14 K5V about 0.7x the diameter of the Sun. The planet is Jupiter sized and took about 2 hours to transit. The transit depth was only 3% this time. #exoplanet #astronomy

A plot showing the drop in light flux from a Star when a planet transits across its face, in this case it is apporx 3% dip

Tonight I decided to try something new. I managed to detect Exoplanet TOI 3714b transiting its host star using my 190MN scope and 2600MM camera. Totally blown away that this is possble from my back yard here in the UK. Transit took 1H 38mins and was about 5% in depth 🤯. #Astrophotography #exoplanet

Had a go processing some of my older narrowband data in Pixinsight of Melotte 15 in the Heart Nebula. I feel this is a better result this time, more finer structure and better stars. This was 18 hours data with Ha, SII and OIII using Atik 383L+ and 190MN #astrophotography

Its raining again so here is an image from earier this year. M81 and M82 galaxies. 6 Hrs Lum and 2 hrs total R,G,B using 190MN and ZWO 2600MM. 100% crop of each galaxy and the full image rescaled. This is another Pixinsight re-process, still learning but very happy with this :) #astrophotography

Re-processed my M106 image with Pixinsight, wish I had taken the leap earlier to PI, much improved, although had to crop a portion to avoid poorly calibrated frames. This is a LRGB image, total of 19 hours exposure with 190MN and ZWO 2600MM camera, click left image for 100% crop #astrophotography

Keith Bramley @keefbram.bsky.social · 12mo ago

Here is my SH2-125 The Cocoon Nebula, imaged in HaLRGB. Total of 3 hours each R,G,B 3 hours Lum and 3 hours Ha. Imaged with a 190MN and ZWO 2600MM camera. This is my first try at using Pixinsight, so far I'm super impressed :) full resized and 100% crop image #astrophotography

After an extended summer break from Astrophotography I am back in the saddle and capturing photons again. Amazingly everything fired up first time, although many critters have been evicted. Tonight’s target is SH2-125 The Cocoon Nebula, might take a couple of nights.

After a decent haul of clear nights here is some new images. This is my NGC 4631 The Whale Galaxy and its buddy NGC 4656 The Hockey Stick Galaxy. With crops of each at full resolution. A total of 10 hours using LRGB filters with my 190MN scope and ZWO 2600MM camera. #astrophotography #galaxy 🔭

The NGC 4631 Group is a poorly defined group of galaxies, about 25 million light-years from Earth in the Coma Berenices and Canes Venatici constellations.

The NGC 4631 Group is one of many that lie within the Virgo Supercluster

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici about 30 million light years away from Earth. It was discovered on 20 March 1787 by German-British astronomer William Herschel. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, hence its nickname. Because this nearby galaxy is seen edge-on from Earth, professional astronomers observe this galaxy to better understand the gas and stars located outside the plane of the galaxy

NGC 4656/57 is a highly warped edge-on barred spiral galaxy located in the local universe 30 million light years away from Earth in the constellation Canes Venatici. This galaxy is sometimes called the Hockey Stick Galaxy or the Crowbar Galaxy. Its unusual shape is thought to be due to an interaction between NGC 4656, NGC 4631, and NGC 4627

With the Moon big and bright I decided to switch to Globluar Clusters, here is my image of M13 The Great Gobular Cluster in Hercules. Several hundred thousand stars, mind blown 🤯. Total of 2 hours Luminance and 1.5 hours each RGB using 190MN and ZWO 2600MM #Astrophotography #space #stars 🔭

A globular cluster, a compact group of over one hundred thousand stars. Located 22,000 light years from Earth.

Not sure if it’s just me but for us UK based astrophotographers this must be the longest continuous streak of clear nights in decades, I think I have had nearly 3 weeks of cloudless skies so far ☺️, it’s so unusual, normally it’s a few a month at best #astrophotography

Here is Mare Imbrium and craters including Plato, Cassini, Archimedes and others, see the annotated version for more info. This is my image from this last night with a ZWO 2600MM and 190MN scope, best 200 frames from 1000 standard luminance filter. #Astrophotography #thephotohour #space 🔭

The crater Copernicus, named after Nicholas Copernicus - Polish Astronomer (1473-1543). It is 93km wide and 3.8km deep. This is my image from this last night with a ZWO 2600MM and 190MN scope, best 200 frames from 1000 standard luminance filter. #Astrophotography #thephotohour #space 🔭

The crater Copernicus, a large impact crater on the Moon

Rob Tilsley@stargazerrob.bsky.social · last yr.

Great shot Rob, really looks like you are in actual orbit around the Moon 👏🏻

Moon - April 4th, 2025 ~22:00UTC 48% illuminated. Made the most of a bit of favorable libration to get a good look at Mare Australe and surrounding area. 8" reflector at 3000mm

Telescopic monochrome view. The moon presented south east ‘up’, The limb of the moon arcs across horizontally, featureless jet black space above. The lunar surface is heavily cratered, with the intensity and roughness increasing towards the right of the image which is more toward to the south pole area. A large valley (Vallis Rheita) starting in the lower left, goes away from the view curving inward, pointing toward an area containing smoother regions, and darker albedo which is Mare Australe.

Darren Carver@dazza1639.bsky.social · last yr.

A super Seagull Nebula (IC 2177) by Darren, can be a tough target for our latitude here in UK, need a clear southern horizon.

Latest #Astrophotography adventure, The Seagull Nebula. This was a difficult one, it’s very low from here, doesn’t get much above 20°, skirting the trees. And with the clocks going forward I was only able to about 1.5 hours a night. This it’s just over 6 hours and is very noisy. Details in AltText

The Seagull Nebula in the Hubble SHO palette just over 6 hours of total integration. Scope - William Optics RedCat 71. Camera - Atikone 6.0. Filters - Antlia 3nm Ha, Oiii & Sii.

Tonights Moon, 100 frames with 190MN Scope and ZWO 2600MM cam. Some Moony facts - 15.7% Illuminated 3.8 days old Waxing Crescent 360,230km from Earth -6.9 Visual Magnitude 33.2 arcmin Apparent size #astrophotography #moon #luna

Here is my image of SH2-275 The Rosette Nebula, My FOV at this focal length can't fit it all in, but this is the central region. 2.5 hours each of SII, H-Alpha and OIII imaged with a ZWO 2600MM and 190MN scope. Love the dust formations, how many animals can you spot? #Astrophotography #nebula 🔭

The central region of the Rosette Nebula, also known as SH2-275 and contains the open cluster NGC 2244. There is a blue central region comprising of OIII emmisons, there is an interesting collection of darker dust regions atthe bottom known as the Carnival of Animals

Classic UK weather for todays partial solar eclipse 🌙 , for the rest of the week though it’s wall to wall sunshine, first year I have had access to a solar scope I could use too, gutted.

Manuel Huss@manuelhuss.bsky.social · last yr.

Super M101 by Manuel

M101 – about 20 hours through my 12" RC / EQ8-R / Touptek 2600 mono camera (color data from an older shot). My main objective was to test different guiding settings. OAG guiding seems to be a pain in the *** at almost 2m focal length, especially under mediocre seeing conditions. #astrophotography

Been a while due to poor weather, but a couple of nights of clear skies mean more images :) here is my image of M101 The Pinwheel Galaxy. This is 4 hours Lum and 1.5 hours each of R,G and B. Imaged with my 190MN scope and ZWO 2600MM camera. #astrophotography #space #galaxy🔭

A large spiral galaxy surrounded by thousands of stars. There are faint dust lanes visible in the galaxy.

Finally some clear skies!! here is last nights Waxing Crescent 40% illumininated, 6.4 day old Moon imaged from UK with a 190MN and ZWO 2600MM cam. Hopefully some more clear skies forecast for the weekend 🙂 #astrophotography #Moon #Luna #thephotohour

40 percent illuminated Moon, it is in the waxing crescent phase so is becoming more illuminated each passing day. Lots of craters can be seen, especially along the terminator, the line between night and day on the Moons surface

Darren Carver@dazza1639.bsky.social · 2y ago

A super image of the California Nebula, love the detail and the structure in this image, Darren has done a great job of adding some depth to this fascinating nebula. 👏🏻

A reprocessed view of the California Nebula (NGC 1499), captured with 10+ hours of exposure in Sii, Ha, and Oiii using the Hubble palette. This version enhances the nebula’s depth, unveiling rich textures and subtle color transitions in this vast interstellar cloud. #Astrophotography #SHO #DeepSky

A newly reprocessed astrophotography image of the California Nebula (NGC 1499), revealing enhanced depth, refined textures, and subtle color transitions. Captured using over 10 hours of exposure, this image combines 40x5-minute frames through a 3nm Antlia Sulphur II (Sii) filter, 40x5-minute frames through a 3nm Antlia Hydrogen Alpha (Ha) filter, and 40x5-minute frames through a 3nm Antlia Oxygen III (Oiii) filter. The data is processed in the Hubble Space Telescope (SHO) palette, where ionized sulphur appears as rich golden hues, hydrogen glows in soft amber, and doubly ionized oxygen emerges in cooler tones.
The California Nebula stretches diagonally across the frame, its intricate gaseous filaments and dark, winding voids sculpted by powerful stellar winds and radiation. The reprocessing brings out finer details in the nebula’s structure, showcasing a more natural contrast between glowing ionized gas and the surrounding darkness of deep space. The hot, massive star Xi Persei, a primary source of the nebula’s ionization, stands out against the cosmic backdrop.
This image was taken with an Atik Cameras Atik One 6.0 and a William Optics Redcat 71 telescope, mounted on a Sky-Watcher EQ8 equatorial mount. The refined processing highlights the nebula’s three-dimensional appearance, offering a breathtaking glimpse into this vast cosmic cloud. A testament to the power of narrowband imaging and careful post-processing.

Paul Byrne@theplanetaryguy.com · 2y ago

Dust devil on Mars seen from orbit, fascinating stuff 🌪️

Oh, this? Just a dust devil, seen from orbit. From Mars orbit. And the dust devil is 20 kilometres tall.

🌬D a y d r e a m Astro 🌈⃤@daydreamastro.bsky.social · 2y ago

Great shot of the Rosette Nebula by Daydream Astro, really vivid colours. Looks like someone has blown a hole in the sky 💥

Just wanted to share our latest shot of the Rosette Nebula! We are still working on this target 🌟 It's a reminder of how vast and beautiful the universe is. Feeling grateful for the chance to explore the night sky! #SpacePhotography #RosetteNebula

Lucky Budd@luckybudd.bsky.social · 2y ago

Always like a nebula that actually looks like its name ☺️ great shot here of the Seagull Nebula by Lucky Budd 👏🏻

The Seagull Nebula. This cosmic bird is comprised of such a huge expanse of dust and gasses that it would take 100 years traveling at the speed of light to go from one wing tip to the other! It took 3800 years for this light to hit my yard in Victoria, BC.

Jonathan@jonathans.bsky.social · 2y ago

This is a wonderful image of Sh2 308, make sure you check out the full resolution image, the nebula really stands out from the background. Nicely done Jonathan.

First image with the Cat91 from Starfront Observatories, and a target I've wanted to go after for a while now, this is Sh2 308, aka the Dolphin Head nebula. It is a bubble-like nebula surrounding a Wolf-Rayet star. #astrophotography 🔭

a blue, bubble-like nebula resembling a dolphin head, surrounded by blue and red wispy nebulosity

Here is my image of the famous Horsehead Nebula in Orion B33. SII,Ha,OIII filters with a ZWO 2600MM cam & 190MN scope from my backgarden.Total 11 hrs exposure, 5min subs, different colour palette than normally seen, but I like it. 100% crop of full image #astrophotography #space #thephotohour 🔭🧪

A dark nebula that resembles a horses head which is back lit by a bright blue nebula, there is also a smaller nebula to the bottom left

Another one of my 135mm Samyang shots, this time of NGC7000 The North America Nebula and IC5070 The Pelican Nebula. A total of 22 hours exposure in 5 min subs using SII, H-alpha and OIII filters. Plate solve below thanks to @kat-astro-bot.bsky.social #astrophotography #space #thephotohour

A bright nebula with a cyan core and dark dust lanes in front. There are thousands of stars in the image