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hourlycosmos.bsky.social
Hourly Cosmos
@hourlycosmos.bsky.social
9.9K followers 13 following 6.5K posts
Photo sharing bot for planetary and deep space images.

Run by @kevinmgill.bsky.social

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hourlycosmos.bsky.social
ESP_021947_1300 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/P2KWc1
Exposures of Layered Rocks in the Argyre Region NASA/JPL/University of Arizona (5 km across, 268 km above the surface; www.uahirise.org/ESP_021947_1300)
November 11, 2025 at 11:00 AM
hourlycosmos.bsky.social
A Selection of Detected Galaxies in the Hubble Ultra Deep Field Area - From Rolf Wahl Olsen - https://flic.kr/p/2nEZwhA
www.rolfolsenastrophotography.com/Astrophotography/Fornax... This diagram shows a 4x upscaled crop of my Fornax Ultra Deep Field image with a selection of distant galaxies detected within the boundaries of the famous Hubble Ultra Deep Field (HUDF) Cross-checking against the available Hubble Ultra Deep Field catalogues using VizieR, approximately 190 galaxies were identified within the HUDF catalogued area. These galaxies range in magnitude from ~20 to 25, with the most distant ones being almost 12 billion light years away! I have selected some of the detected galaxies and shown them with a detail crop from the Hubble Ultra Deep Field, each labelled with HUDF catalog number, redshift and distance. The crop boundaries are overlaid on my image, including official magnitudes of detected galaxies, and to the right is the Hubble Legacy Field and Hubble Ultra Deep Field at the same image scale. Assuming the HUDF to be representative of the entire image, and indeed the entire sky, this can be extrapolated to over 23,000 galaxies in my Fornax Ultra Deep Field alone, and over 2.5 billion galaxies visible in the entire sky at this depth! Resolution ............... 0.765 arcsec/px Rotation ................. 178.892 deg Reference system ......... ICRS Geodetic coordinates ..... 174 45 00 E 36 51 00 N 240 m Focal distance ........... 1456.58 mm Pixel size ............... 5.40 um Image center ............. RA: 3 32 39.046 Dec: -27 47 28.96 Image Acquisition: Date: Nov 2021 - Fe...
November 11, 2025 at 10:00 AM
hourlycosmos.bsky.social
Centaurus A Extreme Deep Field - 120 Hours - From Rolf Wahl Olsen - https://flic.kr/p/euWKoc
The Deepest View Ever Obtained of Centaurus A (NGC 5128) This image is the realisation of a long time dream of mine: Taking a deep sky image with more than 100 hours of exposure. I set out on this mission in early 2013 and after having gathered 120 hours of data on 43 different nights in Feb-May 2013 I present what I believe is the deepest view ever obtained of Centaurus A. This is likely also the deepest image ever taken with amateur equipment, showing stars as faint as magnitude 25.45. I spent around 40 hours and analysing processing the data, with the goal of presenting this majestic Southern galaxy as it has never been seen before - with all the main features showing in one single image, in order to truly get a grasp of what this intriguing object is all about. Visible are some unique features, some of which have never been imaged before by amateurs: * A set of enormous reddish filaments associated with the relativistic jets. * The complete shell structure of the extended halo, showing both the faint outer shells and brighter inner ones. * 709 of the catalogued globular clusters orbiting the galaxy. * Integrated Flux Nebulae permeating the entire field of view around the galaxy. Image details: Date: Taken over 43 nights in Feb-May 2013 Exposure: LRGB: 90h:10h:10h:10h, total 120 hours @ -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 Zealan...
November 11, 2025 at 9:00 AM
hourlycosmos.bsky.social
ESP_016733_1835 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/D7Cq2Z
Lost in Southern Isidis Planitia (NASA/JPL/University of Arizona)
November 11, 2025 at 8:00 AM
hourlycosmos.bsky.social
Falling from Space - From Bill (ridingrobots.bsky.social) - https://flic.kr/p/KbJvMF
Near Park City, Utah, Aug 13th, 2016, 3:02 am
November 11, 2025 at 7:00 AM
hourlycosmos.bsky.social
ESP_052499_1525 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/285axh2
Floor of Blunck Crater – With this observation, we’re looking for evidence of ejecta from Holden Crater on the floor of Blunck. NASA/JPL/University of Arizona (260 km above the surface, less than 5 km across) Source: www.uahirise.org/ESP_052499_1525 ​
November 11, 2025 at 6:00 AM
hourlycosmos.bsky.social
Dust devil and Kodiak hill - Perseverance, sol 114 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/2m6j2x6
Mosaic of 8 pictures taken by Mastcam-Z Right camera on the head of Perseverance rover on sol 114 (June 15th, 2021) at 12:40 pm martian local time. The focal length was set to 63mm.
November 11, 2025 at 5:00 AM
hourlycosmos.bsky.social
8/21/2017 Eclipse - From Brian Swift (bswift.bsky.social) - https://flic.kr/p/Y7DVUr
DSC02043
November 11, 2025 at 4:00 AM
hourlycosmos.bsky.social
Opportunity (25) - From Jacint Roger (landru79.bsky.social) - https://flic.kr/p/2iKWrnP
Opportunity MARS NASA / JPL-Caltech / Cornell / j. Roger
November 11, 2025 at 3:00 AM
hourlycosmos.bsky.social
OPPORTUNITY sol 2151 Microscopic Imager - M.H.L. technique - From 2di7 & titanio44 - https://flic.kr/p/c2oAVJ
"Courtesy NASA/JPL-Caltech." processing 2di7 & titanio44
November 11, 2025 at 2:00 AM
hourlycosmos.bsky.social
Enceladus E-22 flyby December 19, 2015 (ir3 grn uv3) - From 2di7 & titanio44 - https://flic.kr/p/CwRetx
Credit: NASA/JPL-Caltech - Processing: Elisabetta Bonora & Marco Faccin / aliveuniverse.today
November 11, 2025 at 1:00 AM
hourlycosmos.bsky.social
The beautiful side of IC 335 - From Goddard Space Flight Center - https://flic.kr/p/qeLt3h
Hubble sees a galaxy 60 million light-years away This new NASA/ESA Hubble Space Telescope image shows the galaxy IC 335 in front of a backdrop of distant galaxies. IC 335 is part of a galaxy group containing three other galaxies, and located in the Fornax Galaxy Cluster 60 million light-years away. As seen in this image, the disk of IC 335 appears edge-on from the vantage point of Earth. This makes it harder for astronomers to classify it, as most of the characteristics of a galaxy’s morphology — the arms of a spiral or the bar across the center — are only visible on its face. Still, the 45 000 light-year-long galaxy could be classified as an S0 type. These lenticular galaxies are an intermediate state in galaxy morphological classification schemes between true spiral and elliptical galaxies. They have a thin stellar disk and a bulge, like spiral galaxies, but in contrast to typical spiral galaxies they have used up most of the interstellar medium. Only a few new stars can be created out of the material that is left and the star formation rate is very low. Hence, the population of stars in S0 galaxies consists mainly of aging stars, very similar to the star population in elliptical galaxies. As S0 galaxies have only ill-defined spiral arms they are easily mistaken for elliptical galaxies if they are seen inclined face-on or edge-on as IC 335 here. And indeed, despite the morphological differences between S0 and elliptical class galaxies, they share some common characte...
November 11, 2025 at 12:00 AM
hourlycosmos.bsky.social
Bedrock in the Central Peaks of Hale Crater - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/2fgKvjF
This observation is a long image is entirely over the extensive central peak complex of Hale Crater. Of particular interest are bedrock outcrops and associated fine-grained sediments with different colors. This 153-kilometer diameter crater was named after American astronomer George Ellery Hale. NASA/JPL/University of Arizona www.uahirise.org/ESP_058618_1445
November 10, 2025 at 11:00 PM
hourlycosmos.bsky.social
8/21/2017 Eclipse, DSC01881 - From Brian Swift (bswift.bsky.social) - https://flic.kr/p/Y3rvEs
November 10, 2025 at 10:00 PM
hourlycosmos.bsky.social
1980-10-29 OGB V1 NA C3449949 - From Ian Regan - https://flic.kr/p/2j6zVvL
November 10, 2025 at 9:00 PM
hourlycosmos.bsky.social
Late Summer Stars - From Bill (ridingrobots.bsky.social) - https://flic.kr/p/2iKkir8
Skull Valley, Utah 2019
November 10, 2025 at 8:00 PM
hourlycosmos.bsky.social
Opportunity (44) - From Jacint Roger (landru79.bsky.social) - https://flic.kr/p/2iKTFG3
Opportunity MARS NASA / JPL-Caltech / Cornell / j. Roger
November 10, 2025 at 7:00 PM
hourlycosmos.bsky.social
Leo Triplet (M65, M66, and NGC 3628 galaxies) - From Ryan Kinnett (rkinnett.bsky.social) - https://flic.kr/p/2pHo8cW
Imaged in RGB, enhanced with Hydrogen-alpha. 5 hours total integration time from La Crescenta, CA. APM 140mm, asi2600mm, Astronomik filters.
November 10, 2025 at 6:00 PM
hourlycosmos.bsky.social
Orión y Escorpio a la vez sobre el horizonte - From Ángel López-Sánchez - https://flic.kr/p/zbGrA
Imágenes tomadas sólo con una diferencia de media hora, pero ambas constelaciones de pueden ver a la vez desde el Hemisferio Sur.
November 10, 2025 at 5:00 PM
hourlycosmos.bsky.social
ESP_012425_1455 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/dZ9EV3
November 10, 2025 at 4:00 PM
hourlycosmos.bsky.social
Saturn-W00066810-Mar-10-RAW - From Ian Regan - https://flic.kr/p/9qCzqh
Storm on Saturn
November 10, 2025 at 3:00 PM
hourlycosmos.bsky.social
Comet 67P/CHURYUMOV-GERASIMENKO - ESA Rosetta - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2q5WmRH
Full size image: www.flickr.com/photos/192271236@N03/53877127171/sizes/o/ Check license below. Animation: flic.kr/p/2q648Ym Credit: Image Processing: Andrea Luck CC BY Raw Data: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA Image created processing raw data from rosetta-osiris.eu/ ESA Rosetta Orbiter Instrument: OSIRIS Narrow Angle Camera Target: 67P/CHURYUMOV-GERASIMENKO Altitude: 28 km Time: 2016-04-23 Filters Near IR + Orange + Blue Product ID: NAC_2016-04-23T06.06.10.011Z_ID3D_1397549001_F41 NAC_2016-04-23T06.05.56.929Z_ID3D_1397549000_F24 NAC_2016-04-23T06.05.44.541Z_ID3D_1397549900_F22 Links to Raw Images: rosetta-osiris.eu/image/NAC_2016-04-23T06.06.10.011 rosetta-osiris.eu/image/NAC_2016-04-23T06.05.56.929 rosetta-osiris.eu/image/NAC_2016-04-23T06.05.44.541 Credit: Image Processing: Andrea Luck CC BY Raw Data: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA Feel free to share, giving the appropriate credit and providing a link to the original image or tweet: creativecommons.org/licenses/by/3.0/
November 10, 2025 at 2:00 PM
hourlycosmos.bsky.social
Making Waves in Open Science: NASA Initiatives Enable Ocean Research - From NASA Marshall Space Flight Center - https://flic.kr/p/2oWvRBm
As NASA works to make data and research more meaningful and accessible to diverse public and scientific audiences, the agency’s Transform to Open Science (TOPS) program is supporting open science efforts and programs across a variety of scientific disciplines, including climate science and physical oceanography. By leveraging open science principles, NASA encourages and empowers scientists to address critical issues such as melting polar sea ice, rising sea levels, and the overall health of marine ecosystems. The goal of open science is to make NASA research and data more collaborative, accessible, inclusive, and transparent for everyone from the scientist and student to the city manager and citizen. As part of the Open Source Science Initiative, the TOPS team is committed to providing space for everyone in the scientific community to learn about the variety of open science tools and data available, as well as the importance of open science itself. Among the communities that have embraced open science is a NASA-funded consortium called Estimating the Circulation and Climate of the Ocean (ECCO). For more than 20 years, ECCO has been producing models of ocean variables such as sea surface height, sea surface temperature, global mean sea level, sea ice concentration, and ocean bottom pressure. For example, tidal currents often exhibit laminar flow characteristics, visible in the upper left and right corners of the image. This scene was collected by NASA’s Landsat 8 satel...
November 10, 2025 at 1:00 PM
hourlycosmos.bsky.social
Chang'e 3 Lander - Yutu - From Aster Cowart (terrasabaea.bsky.social) - https://flic.kr/p/CS1Gw7
3D red-cyan anaglyph using three left/right eye image pairs taken by Yutu on January 13, 2014. This image captures the Chang'e 3 lander about 1 month after landing, near the start of the spacecraft's second lunar day on the surface. The light patch of material underneath and to the right of the lander is where the spacecraft's landing engine excavated surface dust. Image Credit: Chinese Academy of Sciences / China National Space Administration / The Science and Application Center for Moon and Deepspace Exploration / Justin Cowart
November 10, 2025 at 11:00 AM
hourlycosmos.bsky.social
Phobos and Saturn - Mars Express - From Aster Cowart (terrasabaea.bsky.social) - https://flic.kr/p/DiMyu1
HRSC Super-Resolution Channel image of Phobos and Saturn acquired during Mars Express' 13,320th orbit of Mars on June 28, 2014. Image Credit: ESA/DLR/FU Berlin/J. Cowart, CC BY-SA 3.0 IGO
November 10, 2025 at 10:00 AM