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Observable comet count is 1189
Current exoplanet count is 5862
Current longitude II of the GRS is 72°
Impact Probablity of 2024 YR4: Insignificant
Asteroid | Size | Probability | Date |
2024 YR4 | 40—90 m | Insignificant | 22 December 2032 |
Please do not let this worry you. The asteroid has been detected just recently meaning that the orbital elements are not yet accurately determined, while they can alter any time due to gravitational pulls.
Today Monitor
Mars: January 16, 2025
Jupiter: January 10, 2026
Saturn: September 21, 2025
Uranus: November 21, 2025
Neptune: September 23, 2025
Evening: January 10, 2025 at 47.2°E
Morning: June 1, 2025 at 45.9°W
Morning: December 25, 2024 at 22.0°W
Evening: March 8, 2025 at 18.2°E
Morning: April 21, 2025 at 27.4°W
Evening: July 4, 2025 at 25.9°E
Morning: August 19, 2025 at 18.6°W
Evening: October 29, 2025 at 23.9°E
Morning: December 7, 2025 at 20.7°W
Evening: Febrary 19, 2026 at 18.1°E
Wednesday, 5 November
Friday, 5 December
given for 00:00 UT
Date | Size | Age | Angle | Phase |
---|---|---|---|---|
23 Feb 2025 | 30.61' | 24.48 | -6.502° | ![]() |
24 Feb 2025 | 31.06' | 25.48 | -6.683° | ![]() |
25 Feb 2025 | 31.54' | 26.48 | -6.463° | ![]() |
22 Mar 2025 | 30.16' | 21.97 | -6.602° | ![]() |
23 Mar 2025 | 30.54' | 22.97 | -7.220° | ![]() |
24 Mar 2025 | 31.00' | 23.97 | -7.497° | ![]() |
25 Mar 2025 | 31.50' | 24.97 | -7.380° | ![]() |
26 Mar 2025 | 32.03' | 25.97 | -6.841° | ![]() |
04 Apr 2025 | 31.86' | 5.54 | 6.674° | ![]() |
05 Apr 2025 | 31.40' | 6.54 | 7.159° | ![]() |
06 Apr 2025 | 30.97' | 7.54 | 7.233° | ![]() |
07 Apr 2025 | 30.58' | 8.54 | 6.935° | ![]() |
19 Apr 2025 | 30.14' | 20.54 | -6.609° | ![]() |
20 Apr 2025 | 30.49' | 21.54 | -7.247° | ![]() |
21 Apr 2025 | 30.91' | 22.54 | -7.602° | ![]() |
22 Apr 2025 | 31.38' | 23.54 | -7.618° | ![]() |
23 Apr 2025 | 31.89' | 24.54 | -7.248° | ![]() |
24 Apr 2025 | 32.39' | 25.54 | -6.459° | ![]() |
02 May 2025 | 32.05' | 4.19 | 6.908° | ![]() |
03 May 2025 | 31.53' | 5.19 | 7.524° | ![]() |
04 May 2025 | 31.04' | 6.19 | 7.652° | ![]() |
05 May 2025 | 30.59' | 7.19 | 7.335° | ![]() |
06 May 2025 | 30.21' | 8.19 | 6.642° | ![]() |
18 May 2025 | 30.56' | 20.19 | -6.624° | ![]() |
19 May 2025 | 30.92' | 21.19 | -6.950° | ![]() |
20 May 2025 | 31.32' | 22.19 | -7.010° | ![]() |
21 May 2025 | 31.75' | 23.19 | -6.758° | ![]() |
30 May 2025 | 32.13' | 2.87 | 6.436° | ![]() |
31 May 2025 | 31.63' | 3.87 | 7.137° | ![]() |
01 Jun 2025 | 31.12' | 4.87 | 7.336° | ![]() |
02 Jun 2025 | 30.65' | 5.87 | 7.064° | ![]() |
29 Jun 2025 | 31.11' | 3.56 | 6.528° | ![]() |
02 Oct 2025 | 30.80' | 10.17 | -6.602° | ![]() |
03 Oct 2025 | 31.28' | 11.17 | -6.712° | ![]() |
04 Oct 2025 | 31.79' | 12.17 | -6.413° | ![]() |
13 Oct 2025 | 32.01' | 21.17 | 6.426° | ![]() |
14 Oct 2025 | 31.60' | 22.17 | 7.017° | ![]() |
15 Oct 2025 | 31.20' | 23.17 | 7.219° | ![]() |
16 Oct 2025 | 30.83' | 24.17 | 7.068° | ![]() |
17 Oct 2025 | 30.51' | 25.17 | 6.617° | ![]() |
29 Oct 2025 | 30.28' | 7.48 | -6.622° | ![]() |
30 Oct 2025 | 30.70' | 8.48 | -7.213° | ![]() |
31 Oct 2025 | 31.18' | 9.48 | -7.461° | ![]() |
01 Nov 2025 | 31.71' | 10.48 | -7.298° | ![]() |
02 Nov 2025 | 32.24' | 11.48 | -6.672° | ![]() |
10 Nov 2025 | 32.23' | 19.48 | 7.097° | ![]() |
11 Nov 2025 | 31.72' | 20.48 | 7.804° | ![]() |
12 Nov 2025 | 31.23' | 21.48 | 8.024° | ![]() |
13 Nov 2025 | 30.78' | 22.48 | 7.808° | ![]() |
14 Nov 2025 | 30.39' | 23.48 | 7.230° | ![]() |
26 Nov 2025 | 30.27' | 5.72 | -6.459° | ![]() |
27 Nov 2025 | 30.63' | 6.72 | -7.095° | ![]() |
28 Nov 2025 | 31.05' | 7.72 | -7.447° | ![]() |
29 Nov 2025 | 31.52' | 8.72 | -7.439° | ![]() |
30 Nov 2025 | 32.02' | 9.72 | -7.008° | ![]() |
08 Dec 2025 | 32.44' | 17.72 | 6.680° | ![]() |
09 Dec 2025 | 31.91' | 18.72 | 7.561° | ![]() |
10 Dec 2025 | 31.38' | 19.72 | 7.916° | ![]() |
11 Dec 2025 | 30.87' | 20.72 | 7.788° | ![]() |
12 Dec 2025 | 30.43' | 21.72 | 7.247° | ![]() |
26 Dec 2025 | 31.06' | 5.93 | -6.615° | ![]() |
27 Dec 2025 | 31.43' | 6.93 | -6.624° | ![]() |
Date | Size | Age | Angle | Phase |
---|---|---|---|---|
12 Jan 2025 | 31.85' | 12.07 | -6.565° | ![]() |
13 Jan 2025 | 31.60' | 13.07 | -6.448° | ![]() |
26 Jan 2025 | 30.57' | 26.07 | 6.621° | ![]() |
27 Jan 2025 | 30.96' | 27.07 | 6.622° | ![]() |
08 Feb 2025 | 31.60' | 9.48 | -6.682° | ![]() |
09 Feb 2025 | 31.36' | 10.48 | -6.624° | ![]() |
22 Feb 2025 | 30.21' | 23.48 | 6.703° | ![]() |
23 Feb 2025 | 30.61' | 24.48 | 6.800° | ![]() |
24 Feb 2025 | 31.06' | 25.48 | 6.559° | ![]() |
07 Mar 2025 | 31.74' | 6.97 | -6.762° | ![]() |
08 Mar 2025 | 31.39' | 7.97 | -6.766° | ![]() |
09 Mar 2025 | 31.05' | 8.97 | -6.404° | ![]() |
21 Mar 2025 | 29.85' | 20.97 | 6.665° | ![]() |
22 Mar 2025 | 30.16' | 21.97 | 6.852° | ![]() |
23 Mar 2025 | 30.54' | 22.97 | 6.721° | ![]() |
03 Apr 2025 | 32.33' | 4.54 | -6.682° | ![]() |
04 Apr 2025 | 31.86' | 5.54 | -6.784° | ![]() |
05 Apr 2025 | 31.40' | 6.54 | -6.493° | ![]() |
17 Apr 2025 | 29.65' | 18.54 | 6.506° | ![]() |
18 Apr 2025 | 29.86' | 19.54 | 6.754° | ![]() |
19 Apr 2025 | 30.14' | 20.54 | 6.698° | ![]() |
30 Apr 2025 | 32.98' | 2.19 | -6.438° | ![]() |
01 May 2025 | 32.55' | 3.19 | -6.675° | ![]() |
02 May 2025 | 32.05' | 4.19 | -6.485° | ![]() |
15 May 2025 | 29.78' | 17.19 | 6.605° | ![]() |
16 May 2025 | 29.99' | 18.19 | 6.587° | ![]() |
28 May 2025 | 32.97' | 0.87 | -6.528° | ![]() |
29 May 2025 | 32.60' | 1.87 | -6.460° | ![]() |
11 Jun 2025 | 29.82' | 14.87 | 6.526° | ![]() |
12 Jun 2025 | 30.02' | 15.87 | 6.530° | ![]() |
24 Jun 2025 | 32.85' | 27.87 | -6.457° | ![]() |
25 Jun 2025 | 32.68' | 28.87 | -6.502° | ![]() |
08 Jul 2025 | 29.84' | 12.56 | 6.561° | ![]() |
09 Jul 2025 | 30.07' | 13.56 | 6.600° | ![]() |
21 Jul 2025 | 32.45' | 25.56 | -6.493° | ![]() |
22 Jul 2025 | 32.38' | 26.56 | -6.624° | ![]() |
04 Aug 2025 | 29.76' | 10.20 | 6.646° | ![]() |
05 Aug 2025 | 29.99' | 11.20 | 6.748° | ![]() |
06 Aug 2025 | 30.28' | 12.20 | 6.541° | ![]() |
17 Aug 2025 | 32.23' | 23.20 | -6.553° | ![]() |
18 Aug 2025 | 32.11' | 24.20 | -6.755° | ![]() |
19 Aug 2025 | 31.94' | 25.20 | -6.550° | ![]() |
31 Aug 2025 | 29.61' | 7.75 | 6.661° | ![]() |
01 Sep 2025 | 29.78' | 8.75 | 6.848° | ![]() |
02 Sep 2025 | 30.05' | 9.75 | 6.733° | ![]() |
13 Sep 2025 | 32.46' | 20.75 | -6.508° | ![]() |
14 Sep 2025 | 32.22' | 21.75 | -6.794° | ![]() |
15 Sep 2025 | 31.95' | 22.75 | -6.665° | ![]() |
27 Sep 2025 | 29.47' | 5.17 | 6.540° | ![]() |
28 Sep 2025 | 29.56' | 6.17 | 6.805° | ![]() |
29 Sep 2025 | 29.74' | 7.17 | 6.779° | ![]() |
30 Sep 2025 | 30.01' | 8.17 | 6.453° | ![]() |
11 Oct 2025 | 32.77' | 19.17 | -6.687° | ![]() |
12 Oct 2025 | 32.41' | 20.17 | -6.652° | ![]() |
25 Oct 2025 | 29.42' | 3.48 | 6.651° | ![]() |
26 Oct 2025 | 29.52' | 4.48 | 6.681° | ![]() |
27 Oct 2025 | 29.69' | 5.48 | 6.423° | ![]() |
07 Nov 2025 | 33.37' | 16.48 | -6.472° | ![]() |
08 Nov 2025 | 33.10' | 17.48 | -6.565° | ![]() |
21 Nov 2025 | 29.39' | 0.72 | 6.513° | ![]() |
22 Nov 2025 | 29.46' | 1.72 | 6.567° | ![]() |
05 Dec 2025 | 33.44' | 14.72 | -6.511° | ![]() |
18 Dec 2025 | 29.42' | 27.72 | 6.502° | ![]() |
19 Dec 2025 | 29.48' | 28.72 | 6.570° | ![]() |
Source: NASA/GSFC
NASA Webb Explores Effect of Strong Magnetic Fields on Star Formation
April 02, 2025
Processed data collected by the MeerKAT radio telescope shows the plane of the Milky Way galaxy, with a graphic pullout highlighting a much smaller region on the right, captured by the James Webb Space Telescope’s near-infrared light observations. The MeerKAT image is colored in blue, cyan, and yellow, with a very bright white-yellow center that indicates the location of the Milky Way’s supermassive black hole. Painterly bubbles of various sizes, clouds, and vertical brushstroke-like streaks make up the radio image. The Webb inset shows stars and gas clouds in red, with an arching cloud of bright cyan that contains many straight, needle-like features that appear more crystalline than cloudy.
Source: stsci.edu/news
26 March 2025
Using the unique infrared sensitivity of the NASA/ESA/CSA James Webb Space Telescope, researchers can examine ancient galaxies to probe secrets of the early universe. Now, an international team of astronomers has identified bright hydrogen emission from a galaxy in an unexpectedly early time in the Universe’s history. The surprise finding is challenging researchers to explain how this light could have pierced the thick fog of neutral hydrogen that filled space at that time.
Source: esawebb.org
27 March 2025
This new NASA/ESA/CSA James Webb Space Telescope Picture of the Month features a rare cosmic phenomenon called an Einstein ring. What at first appears to be a single, strangely shaped galaxy is actually two galaxies that are separated by a large distance. The closer foreground galaxy sits at the center of the image, while the more distant background galaxy appears to be wrapped around the closer galaxy, forming a ring. Einstein rings occur when light from a very distant object is bent (or ‘lensed’) about a massive intermediate (or ‘lensing’) object. This is possible because spacetime, the fabric of the Universe itself, is bent by mass, and therefore light travelling through space and time is bent as well. This effect is much too subtle to be observed on a local level, but it sometimes becomes clearly observable when dealing with curvatures of light on enormous, astronomical scales, such as when …
Source: esawebb.org
The four astronauts who will be the first to fly to the Moon under NASA's Artemis campaign – NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen – have designed an emblem to represent their mission that references both their distant destination and the home they will return to.
Click to enlarge or show full screenThu, 03 Apr 2025 17:55 GMT
Source: www.nasa.gov
Image credit: NASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI)
2025-03-18 Exoplanets
HR 8799 is a young star with 1.5 solar masses, about 130 light-years away in Pegasus and known to have four giant gas planets rich in carbon dioxide gas. NASA’s James Webb Space Telescope took a spectrum and imaged the four planets while the light of the star has been blocked. Link to source 🔗
Image credit: International Gemini Observatory/NOIRLab/NSF/AURA/R. Proctor/J. Pollard
2025-03-14 Exoplanets
Next to the Alpha Centauri system, Barnard's star is the second nearest at 5.96 light-years away in Ophiuchus. As of March 2025, the red dwarf star, only 0.16 as massive as the sun, is home to four known (confirmed) planets each of them less than half the mass of Earth and none of them orbiting inside the habitable zone. Only between 2.8 and 4.1 million kilometers away from the star on 2.34 to 6.74 days orbits, their surfaces are supposed to be heat scorched with no outlook for life. Link to source 🔗
Image credit: European Space Agency
2025-02-07 solar system
2024 YR4 is an extremely faint asteroid with a low albedo of 5% to 25% and is 40 to 90 meters in size which, as of today, has a minute 2.2% probability of impacting Earth at 14:02 UTC on December 22, 2032. The asteroid rotates around its axis every 19.5 minutes and travels around the sun on a highly 0.662 eccentric orbit plane once in about 4 years at a mean distance of 2.5165 AU. Its last perihelion (sun passage) occurred on 2024-Nov-22. The iron-nickel asteroid that created the Barringer Crater in Arizona 50,000 years ago was about 50 meters wide. Link to source 🔗
Image credit: NASA/JPL-Caltech/R. Hurt (Caltech-IPAC)
2025-02-01 Exoplanets
Gliese 12 (TOI-6251) is a red dwarf star some 40 light-years away in Pisces. Its known planet, b, about the same size as Venus and, because a red dwarf is much cooler than our sun, the planet also receives the same amount of energy from its host star although orbiting much closer and once in about 12.8 days. In astronomical terms, the planet lies nearby and is a potentially terrestrial, temperate exoplanet inviting further investigations, such as atmospheric spectroscopy with the help of the JWST. Link to source 🔗
Image credit: NASA/JPL-Caltech
2025-01-31 Universe
Scheduled for launch past February 2025, SPHEREx is NASA's latest orbiting space telescope, designed for a spectral survey of the entire sky for a duration of tentatively two years in order to explore the origins of the universe. Link to source 🔗
Image credit: NASA / CXC / A. Hobart / Josh Barnes, University of Hawaii / John Hibbard, NRAO
2025-01-20 galaxies
Astronomers at the University of Tokyo discovered a rare quasar-like object with a long-term periodic luminosity variation with a cycle of about 190 days. Two black holes moving periodically at high speed may be the cause of the variability, hypothetically a supermassive blackhole binary. The extremely luminous object lies in the constellation of Hydra and is designated J0909+0002 in short. Link to source 🔗
Image credit: NAOJ
2025-01-15 Exoplanets
Using the James Webb Space Telescope, astronomers scanned the atmosphere of the planet GJ1214 b located 48 light-years away in Ophiuchus. Instead of a hydrogen rich super-Earth, or a water world, the new data, in spite of many uncertainties, revealed concentrations of carbon-dioxide (CO2) comparable to the levels found in the dense CO2 atmosphere of Venus. Link to source 🔗
Backlog
No, we are not on Facebook but proudly on AstroBin with Mille Gracie to the author Salvatore Iovene:
If anybody is interested in the night life of bats, here is a funny 1-minute MP4 video (24MB).
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Unique visitors today: 10 (since 0:00 UTC) from:
Newest flag: Ecuador -- Welcome!
Total page views 939 since 2025-04-01
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Constellation | Draco |
Distance | 78.74 parsec |
Magnitude | 11.11 vis. |
Mass | 0.71 xSun |
Radius | 0.72 xSun |
Temperature | 4975°K |
Known planet(s) | 2 |
Lyrids
16 Apr - 25 Apr, Peak: 4/22
Radiant: Star Chart, Rating: bright
15 per hour, bright and long lasting meteors. Parent body is Comet C/Thatcher (1861 G1).
Algol (26 Bet Per) in Per [HIP 14576]
Distance: 93 light-years, Magnitude: 2.09
Designated BETA in the constellation Perseus, Algol is located where Perseus uplifted the head of Medusa. The name is Arabic for 'demon'. Algol is a popular eclipsing binary which changes its brightness between 2.2 and 3.4 during the 2.8673 days orbital period.
Star Chart | DSS IR Image 🔗GJ 559 A (alpha Centauri A ) in Centaurus
Distance: 4 light-years, Magnitude: -0.01
Toliman A, Rigil Kent A or Alpha Centauri A, is triple and at a distance of 4.37 light-years, the closest star system to our sun. A companion with one known Earth sized planet orbits in 79.91 years, while a 3rd faint star, Proxima, is currently the nearest star to Earth. Toliman A is the brightest star in the southern constellation of Centaurus and the third brightest star in the night sky. It has 110% of the mass and 151.9% the luminosity of the Sun and rotates with an estimated period of 22 days.
Star Chart | DSS IR Image 🔗
M44 (Open Cluster) in Cancer
Magnitude: 3.1
M44 consists of hundreds of members - with at least four orange giants and five white dwarfs. In absence of nebulosity, M44 contains a swarm of bright stars and 350 faint stars seen in telescopes. It is the nearest open cluster of its type, and contains a larger star population than most other nearby clusters.
Star Chart | DSS IR Image 🔗Gemini (northern), area rank: 30
Located in between Taurus and Cancer, Gemini is one of the 12 zodiac constellations. It is characterized by the "brother stars", 2nd-magnitude Castor and 1st-magnitude Pollux. The large open star cluster M35 resides at the feet of Castor.
Star Chart131P/Mueller 2 (2013)
Discovered on September 15, 1990 on an accidently taken photograph the periodic comet was last detected on 9 February 1991.
Emma (Asteroid)
Semi-major: 3.04279 AU, Size: 148 km
Discovered by Auguste Charlois on February 8, 1889, 283 Emma is a main belt asteroid with yet unknown spectral type. Emma rotates around its axis in 6.888 hours and has a mass of 1.3x1018kg. On 14 July 2003, a 12 km wide satellite, designated S/2003 (283) 1, was detected with the Keck II telescope. It orbits at a mean distance of about 581 km with an eccentricity of 0.12.
Triton (moon of Neptune)
Discovered in 1846, Triton is Neptune's largest moon in a retrograde orbit. Triton has a sparsely cratered surface with smooth volcanic plains, mounds and round pits formed by icy lava flows. Triton's thin atmosphere is composed mainly of nitrogen with small amounts of methane.
HD 136118 b (in Serpens)
Mass: 13.102 xJup
SMA: 2.327 AU
Period: 1187.6 days
Distance: 51.4359 parsec
Category: Warm Jovian
ESI: 0.389092