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Galaxy Map

@galaxymap.bsky.social
642 followers 534 following 2.3K posts

The first accurate and detailed maps of the Milky Way and ways to promote and visualize them (including VR). Website: kevinjardine.dev Tip jar: tiptopjar.com/kevinjardine

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Galaxy Map @galaxymap.bsky.social · 01/10/2026
I'm heading back to Leiden tomorrow but before that I took a nostalgic walk around Toronto.
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Galaxy Map @galaxymap.bsky.social · 29/09/2026
I've been having a great month with my father in Oshawa reading thirteenth century history and learned a tremendous amount. I have all the bits I need for a novel. And ended up with a strong dislike for Salimbene di Adam. What a pompous gossip he was. I plowed through his chronicle for a few gems.
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Galaxy Map @galaxymap.bsky.social · 29/09/2026
There are *two* papers out on planets orbiting stars within 10 parsecs. This one on a rocky planet: arxiv.org/abs/2609.30552
arxiv.org
Hot Rocks Survey VI: An anomalously hot dayside for the rocky planet GJ 357 b
As part of the JWST Hot Rocks Survey, we analyzed a JWST/MIRI F1500W secondary-eclipse observation of GJ 357 b, a rocky exoplanet orbiting a nearby M dwarf. We also performed a new global analysis of ...
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Chara @astrochara.bsky.social · 29/09/2026
Today's arXiv day went almost 6 hours past UTC midnight. I predicted it's going to be a monster. I was right. - Possible mechanism for variable He escape from LHS 1140 b - 2-ary eclipse+phase curve for TOI-2431 b - NEID Earth Twin Survey part 6 - TOI-125 trans. spec - TOI-210 b discovery
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Galaxy Map @galaxymap.bsky.social · 25/09/2026
A new Gaia subset with many accurate parameters crossmatched with 14 other surveys. There doesn't appear to be a top down map but very pretty HR and Kiel diagrams. arxiv.org/abs/2609.28652
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Galaxy Map @galaxymap.bsky.social · 24/09/2026
Despite the rumors, the new Meta VR glasses are not just for watching movies. They support the complete Quest gaming library (especially if you have or buy the optional controllers). We are living in the most exciting new tech era since I bought my first microcomputer in the 1970s. Saving my euros.
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Galaxy Map @galaxymap.bsky.social · 22/09/2026
In this famous clip, Humphrey Appleby explains why the UK really wants to be in the EU (and implicitly why Brexit was a disaster for British foreign policy). youtu.be/ZVYqB0uTKlE?...
youtu.be
Why the UK is in the EU
YouTube video by André Cunha
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Galaxy Map @galaxymap.bsky.social · 21/09/2026
Now there is an interesting euphemism: "metal-polluted". In other words trace elements left over after a red giant has eaten its planets before ejecting its outer layers and becoming a white dwarf. arxiv.org/abs/2609.22033
arxiv.org
Searching for Massive Remnant Planetary System Hosts with White Dwarf Gaia XP Spectra
Remnant planetary systems around massive white dwarfs ($M_{\rm WD} > 0.8\,{\rm M}_\odot$) are intrinsically rare and remain poorly characterized. As the evolutionary endpoints of intermediate-mass B- ...
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Galaxy Map @galaxymap.bsky.social · 21/09/2026
Most Canadians love the EU and would like to have closer bonds. And then there is Canada's miniTrump and his dwindling gang of supporters. 🫣😝 globalnews.ca/news/1206650...
globalnews.ca
Poilievre says Canada will never be ’28th state’ of EU at Ontario rally - National | Globalnews.ca
The Opposition leader says Canada already has a free trade agreement with Europe and close defence ties with the continent through NATO, but he doesn’t support European laws.
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Galaxy Map @galaxymap.bsky.social · 18/09/2026
Reading a fascinating translation of a medieval document, SVMMA CONTRA HERETICOS, believed to be written by the Dominican inquisitor Peter of Verona. Peter imagines himself in a life or death debate with a Patarene opponent and there's a section where the Patarene criticizes the Inquisition itself.
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Galaxy Map @galaxymap.bsky.social · 18/09/2026
A flood of new Gaia papers out this week. One of my favorites is on the Pismis catalogue of open star clusters. arxiv.org/abs/2609.19486
arxiv.org
Honoring Paris Pişmiş' Legacy: Uniform Astrophysical Properties of 14 Understudied Clusters from Gaia DR3
Open clusters are fundamental tracers of the chemical and dynamical evolution of the Galactic disc. This study presents a systematic characterisation of 14 understudied open clusters from the Pismis c...
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Galaxy Map @galaxymap.bsky.social · 17/09/2026
I often feel sad when I see Star Trek maps like this with so little detail, non-existent objects and imaginary names. And of course missing well known clusters like the Hyades. Now that we have incredibly detailed real maps of the local galaxy I wish Star Trek would show more interest in them.
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Galaxy Map @galaxymap.bsky.social · 17/09/2026
I find this whole discussion weird because there is no EU associate membership and I am not sure there ever will be. What would it even mean? www.theguardian.com/world/2026/s...
theguardian.com
Mark Carney calls for ‘deep cooperation’ between Canada and EU in Strasbourg address
Polling shows overwhelming majority of Canadians support closer ties with Europe, says prime minister
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Galaxy Map @galaxymap.bsky.social · 17/09/2026
Interesting. I wonder how this compares with the Fifth Catalogue of Nearby Stars (CNS5), which also goes out to 25 parsecs. arxiv.org/abs/2609.17729
arxiv.org
The Solar Neighborhood LVI: The RMSTAR Catalog of the Nearest 3352 M Dwarf Systems and 305 of their Wide Companions
We present the RMSTAR (RECONS M STAR) catalog, a 25 pc volume-limited and effectively volume-complete sample of the nearest 3352 M dwarf systems and their 305 wide stellar and 9 brown dwarf companions...
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Galaxy Map @galaxymap.bsky.social · 17/09/2026
Will the Dutch government collapse because the increasingly far right VVD won't make any concessions to the centre left? Dutch politics was once pragmatic but no more it seems. nltimes.nl/2026/09/16/b...
nltimes.nl
Budget Debate: Can Cabinet stay united and convince opposition to support plans?
After a very eventful Budget Day, marked by burning hay bales along the highways, red paint dumped on the route the Royals took, and large-scale sabotage on the railway, the Cabinet is undoubtedly fac...
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Galaxy Map @galaxymap.bsky.social · 16/09/2026
Work is moving forward on creating a near-infrared successor to the Gaia Mission. This will require new technology and there are already some promising developments. arxiv.org/abs/2609.17371
arxiv.org
Characterization of IBEX LmAPD detectors at CEA for future low-noise NIR astronomy instruments
Future near-infrared (NIR) astronomy missions dedicated to photon-starved science cases, in particular an all-sky astrometric survey extending the legacy of Gaia into the NIR, as identified within the...
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Galaxy Map @galaxymap.bsky.social · 15/09/2026
Currently reading an amazing book that brings the thirteenth century to life by focusing on a small group of pivotal characters and tries to understand how they viewed their lives. www.amazon.com/Inner-Lives-...
amazon.com
The Inner Lives of Medieval Inquisitors
The Inner Lives of Medieval Inquisitors - Kindle edition by Sullivan, Karen. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading The Inner Lives of Medieval Inquisitors.
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Britt Lundgren @brittlundgren.bsky.social · 15/09/2026
I'm so completely out of practice at receiving good news.. but I think this is.. good?!?
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Galaxy Map @galaxymap.bsky.social · 11/09/2026
I find it funny that a silly costume used in an episode of I Love Lucy was later recycled as a Star Trek monster by adding a horn.
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The Orion @gettheorion.bsky.social · 10/09/2026
Hail To The Queen. 🖖🏻💚
illustration of actress Lucille Ball dressed in a Captain's uniform from Star Trek The Original Series. The background is a colorful nebula. The blue of the nebula is reflected in her eyes. At the top left is the number 60 representing Star Trek's 60th anniversary.
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Galaxy Map @galaxymap.bsky.social · 10/09/2026
Two surprisingly different estimates of the distance between the Sun and the galactic centre. (I use 8.2 kpc myself.) arxiv.org/abs/2609.10258
arxiv.org
The solar Galactocentric distance and local kinematic parameters from Gaia DR3 using Bottlinger's equations
The solar Galactocentric distance, $R_0$, together with the local kinematic parameters of the Milky Way, provides fundamental constraints on the Galactic structure and rotation. Their accurate determi...
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Galaxy Map @galaxymap.bsky.social · 10/09/2026
Sky in Oshawa, Ontario tonight.
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Galaxy Map @galaxymap.bsky.social · 09/09/2026
I am staying with my family in Oshawa and amongst the prosaic suburban landscape I see occasional references to more exotic literature in street names: Camelot, Beatrice and Eulalie. I can't decide whether the names are a coincidence or from a bored city planner with a sense of humour.
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George Takei @georgetakei.bsky.social · 08/09/2026
Sixty years ago today, the starship Enterprise launched and with it, a vision of the future where humanity had moved beyond its divisions. I was there at the beginning, and I can tell you...
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Galaxy Map @galaxymap.bsky.social · 08/09/2026
As a Canadian, I celebrated the 60th anniversary two days ago, but for my favorite sci-fi franchise, I don't mind celebrating twice!
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Knut Morå @knut.dundasmora.no · 08/09/2026
It turns out that by some curious accident I'm the only one in the office that owns map projection trading cards!?
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Galaxy Map @galaxymap.bsky.social · 07/09/2026
Always good to have accurate distances for objects beyond 3 kpc. arxiv.org/abs/2609.04857
arxiv.org
Membership Determination of 45 Open Clusters Beyond 3 kpc
Context. Open clusters (OCs) are fundamental tracers for studying the structure and chemical evolution of the Galactic disc. Reliable identification of cluster members, particularly at the faint end o...
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Galaxy Map @galaxymap.bsky.social · 07/09/2026
In a parliamentary democracy, winning a plurality of the vote does not mean that you've won the election. Really tired of reading headlines like this. www.cnn.com/2026/09/06/e...
cnn.com
Germany’s far-right AfD projected to win eastern state but unclear if it will be able to govern | CNN
‌The far-right Alternative for Germany surged into first place in state elections in Saxony-Anhalt on Sunday but it was unclear whether it would be able to form a government on its own, according to e...
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Galaxy Map @galaxymap.bsky.social · 01/09/2026
There have long been theories that rafts like this transported rodents and monkeys between Africa and South America. Great to hear that they are still being formed. www.theguardian.com/world/2026/s...
theguardian.com
Peekaboo island: the floating forest confounding nature watchers in western Canada
A 150-metre-long island appeared from nowhere on Williston Lake, British Columbia; vanished, then reappeared 20 miles away
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Galaxy Map @galaxymap.bsky.social · 01/09/2026
More OB stars to map. I am currently in Canada visiting family but will look at this new data set in October. arxiv.org/abs/2608.30200
arxiv.org
OB stars identified in LAMOST Data Release 10
A large sample of OB stars plays an important role in studying the stellar parameters of massive stars, as well as the formation and evolution of the Milky Way. With the help of the Large Sky Area Mul...
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Galaxy Map @galaxymap.bsky.social · 31/08/2026
New paper out on red clump stars. Interesting to see the prominent stellar streams caused by the small and large Magellanic Clouds at the lower right. arxiv.org/abs/2608.28522
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Galaxy Map @galaxymap.bsky.social · 31/08/2026
I love original sources and today I came across a motherlode - translations of sermons by Innocent III, perhaps the most famous medieval pope. In one he warned a gathering of clerics that "to whom more is entrusted, from whom more is demanded". It sounds familiar somehow. I wonder why.
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Britt Lundgren @brittlundgren.bsky.social · 30/08/2026
The Roman Space Telescope was canceled five times in presidents' budget requests - twice during the Obama era and three times in the first Trump administration. Each time, Congress elected to save the mission.
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Eamonn Kerins @eamonnkerins.bsky.social · 30/08/2026
It's not a great feeling to see 15 years of work (and many more years of work by Goddard engineers) sitting on top of a great big bomb. But it feels utterly amazing to see it break free from the bonds of Earth and head off to its permanent home. #RomanLaunch 🚀🔭🧪 (picture credit: Kate Kerins)
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Jonathan McDowell @planet4589.bsky.social · 30/08/2026
The Roman Space Telescope is complementary to ESA's Euclid mission, which was launched in 2023. Euclid has twice as many pixels in its camera and will cover a broader area of sky, but Roman's bigger mirror will let it see fainter galaxies.
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Galaxy Map @galaxymap.bsky.social · 30/08/2026
The Roman space telescope is on its way to Lagrange Point 2 (joining the Webb space telescope). Looking forward to its first light images.
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Jasmine 🌌🔭 @astrojaz.bsky.social · 30/08/2026
way more people should be excited about roman… hubble-level sharpness but 100x the field of view, billions of galaxies, thousands of exoplanets, dark matter + dark energy!!!! this telescope could usher in a whole new era of astronomy and it launches TOMORROW???
A poster of the Nancy Grace Roman space telescope.
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Jen Willis ✨☄️🌒🎃 @jenwillis.bsky.social · 28/08/2026
I've just seen this stunning photo of the Nancy Grace Roman Space Telescope being prepared for launch, and I swear it looks just like an angel. flic.kr/p/2sx7SVx
KSC-20260821-PH-SER01_0002
Teams inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida encapsulate the agency’s Nancy Grace Roman Space Telescope within the payload fairing on Friday, Aug. 21, 2026, ahead of mating to a SpaceX Falcon Heavy rocket. Encapsulation shields the spacecraft during rollout, ascent, and the early phases of flight. Roman will investigate dark energy and dark matter, conduct a statistical census of planetary systems, and enable a broad range of additional astrophysics research. Liftoff from Launch Complex 39A at Kennedy is targeted for no earlier than Sunday, Aug. 30, 2026. Photo credit: NASA/Sydney Rohde (Rocz)
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Galaxy Map @galaxymap.bsky.social · 27/08/2026
How will the Netherlands solve the problem of the VVD? The once fairly moderate party now aligns only with far right policies and is threatening to destroy any attempt to achieve a political consensus. nltimes.nl/2026/08/27/d...
nltimes.nl
D66, CDA want a deal with Pro to pass budget; VVD rejects left path
The Dutch minority Cabinet is split over how to lock in parliamentary support for the coming budget. D66 and CDA want a political deal that gives the left-wing opposition party Pro a larger role. The ...
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Galaxy Map @galaxymap.bsky.social · 25/08/2026
Interesting new map of the major star formation regions in the solar neighborhood. From: arxiv.org/abs/2608.21028
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Galaxy Map @galaxymap.bsky.social · 23/08/2026
Taking a break from astronomy for the next month and going to my other favorite topic - 13th century history. Currently reading Henry C. Lea's "A History of the Inquisition of the Middle Ages" - one of those great historical mountain peaks that I've wanted to climb for many years.
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Galaxy Map @galaxymap.bsky.social · 18/08/2026
I've often been bemused by the concept of a "general audience". What is that exactly? In any case that is surely not the group I am trying to reach. But if you think you are trying to reach such an audience, then perhaps this course might be a good option for you.
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Catherine Ryan Hyde @catherineryanhyde.bsky.social · 16/08/2026
This is the globular cluster M15 in the constellation Pegasus. I was only able to get a little over an hour before the fog came in. I would definitely work on this more if I could get another clear night, but it remains to be seen whether I will. #Astronomy #Astrophotography
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Manuel Huss @manuelhuss.bsky.social · 16/08/2026
'A bridge across the Soul' - A new attempt at the Soul Nebula (IC 1848), featuring the central bridge area, as the whole thing doesn’t fit on my sensor. Total exposure time of 30 hours over 5 nights. Gear: TS CF-Apo 130/910mm, ASI2600mm Pro camera & halpha/OIII/SII nb filters. #astrophotography
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Michael Merrifield @astromikemerri.bsky.social · 16/08/2026
A nice night to go after one of the lesser-known beautiful objects in the sky, Sh2-112, which also has interesting astrophysical story to tell. The name is because this is object 112 in Stewart Sharpless’ (2nd) 1959 catalogue of extended Galactic objects that emit H-alpha. 1/6 🔭🧪
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Hourly Cosmos @hourlycosmos.bsky.social · 15/08/2026
Thor's Helmet - NGC 2359 - From Rolf Wahl Olsen - flic.kr/p/dMQknj
This delicate emission nebula is located in the constellation of Canis Major at a distance of about 15,000 light years. The nebula is illuminated by a central star in its last stage of life. This is a massive so called Wolf-Rayet star which is shedding its outer layers of gas at an extremely high rate due to intense radiation pressure. Wolf-Rayet stars are thought to represent a brief stage of evolution near the end of life for giant super massive stars - the last unstable phase before the star explodes as a brilliant supernova.

In the case of Thor's Helmet a large expanding bubble has formed around the bright central star. Interaction with giant molecular clouds in the area have contributed to the overall intricate shape of the nebula and large bow shock structures radiate out from the bubble in several directions. The nebula is some 30 light years in diameter and the strong blue-green colour is due to OIII emission near the star. 

This entire spectacle lies embedded in a dense star field consisting of thousands of coloured jewels each casting their own contrasting light onto this dramatic interstellar scenery.

Image details:
Date: 8th, 14th, 19th December 2012 and 5th, 6th, 9th January 2013
Exposure: LRGB: 530:44:33:33m, total 10hrs 40mins @ -28C
Telescope: 10" Serrurier Truss Newtonian f/5
Camera: QSI 683wsg with Lodestar guider 
Filters: Astrodon LRGB E-Series Gen 2 
Taken from my observatory in Auckland, New Zealand 

Click here to view a closer crop of the ne...
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Galaxy Map @galaxymap.bsky.social · 15/08/2026
Had an unusual tour today of Fort Rhijnauwen near Utrecht. Built in the 19th century, this huge fortress was abandoned decades ago and is now maintained as a habitat for about 500 bats. We followed the guide through long pitch dark corridors and he identified sleepy bats with his flashlight.
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Galaxy Map @galaxymap.bsky.social · 13/08/2026
Please share your favorite space map images. I'd love to be inspired. #astronomy #cartography
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ESO @eso.org · 13/08/2026
A cosmic rose with many names 🌹 Officially known as Messier 17, this nebula has many nicknames: the Omega Nebula, the Swan Nebula, the Checkmark Nebula, the Horseshoe Nebula, and the Lobster Nebula. But what causes its red and pink shades? 🤔  🔭 1/2
A nebula glowing in shades of pink against a packed star field. Wisps of gas form cloud-like structures that stretch across the image. Dark lanes of dust carve through the glowing nebula.
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Galaxy Map @galaxymap.bsky.social · 13/08/2026
Later this year I hope to launch a Kickstarter to fund the Atlas of the Milky Way. I've created a signup page here: kevinjardine.dev/signup but so far only about 40 people have signed up. I'd like that to be closer to a thousand. I've now added a profile: kevinjardine.dev/profile Please promote.
kevinjardine.dev
Atlas of the Milky Way Kickstarter profile
Explore the Milky Way with Kevin Jardine's detailed cartography.
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