Astronomical database with 3D simulations, visualizations, computations, review, articles, and more.

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Sun & Moon Today

JD 2460814  DoY 138  WoY 20
🔼04:36
🔽18:44

TWILIGHT
02:56~20:24
Ecl Long 57.8°
in Taurus

Waning gibbous
Age 20.17 d
Phase 114.1°
Ecl Long 303.7°
in Capricorn

SSE

Observable comet count is 1199

Current exoplanet count is 5903

Current longitude II of the GRS is  72°



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Impact Probablity of 2024 YR4:  Insignificant

Asteroid Size ProbabilityDate
2024 YR440—90 mInsignificant22 December 2032

Reference ESA

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.


The risk corridor of 2024 YR4's possible impact locations runs from the Pacific Ocean to Northern South America, the Atlantic Ocean, central Africa, a corner of the Arabian peninsula, and then to northern India (Source Wikipedia).

 

 

Today Monitor

 


Planet Oppositions

Mars: January 16, 2025
Jupiter: January 10, 2026
Saturn: September 21, 2025
Uranus: November 21, 2025
Neptune: September 23, 2025

 

Greatest Elongation of Venus

Evening: January 10, 2025 at 47.2°E
Morning: June 1, 2025 at 45.9°W

 

Greatest Elongation of Mercury

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



Comets to look out for:



Super Moons (full) 2025

Wednesday, 5 November
Friday, 5 December

 

given for 00:00 UT

In Longitude (negative is western)

DateSizeAgeAnglePhase
23 Feb 202530.61'24.48-6.502°
24 Feb 202531.06'25.48-6.683°
25 Feb 202531.54'26.48-6.463°
22 Mar 202530.16'21.97-6.602°
23 Mar 202530.54'22.97-7.220°
24 Mar 202531.00'23.97-7.497°
25 Mar 202531.50'24.97-7.380°
26 Mar 202532.03'25.97-6.841°
04 Apr 202531.86'5.546.674°
05 Apr 202531.40'6.547.159°
06 Apr 202530.97'7.547.233°
07 Apr 202530.58'8.546.935°
19 Apr 202530.14'20.54-6.609°
20 Apr 202530.49'21.54-7.247°
21 Apr 202530.91'22.54-7.602°
22 Apr 202531.38'23.54-7.618°
23 Apr 202531.89'24.54-7.248°
24 Apr 202532.39'25.54-6.459°
02 May 202532.05'4.196.908°
03 May 202531.53'5.197.524°
04 May 202531.04'6.197.652°
05 May 202530.59'7.197.335°
06 May 202530.21'8.196.642°
18 May 202530.56'20.19-6.624°
19 May 202530.92'21.19-6.950°
20 May 202531.32'22.19-7.010°
21 May 202531.75'23.19-6.758°
30 May 202532.13'2.876.436°
31 May 202531.63'3.877.137°
01 Jun 202531.12'4.877.336°
02 Jun 202530.65'5.877.064°
29 Jun 202531.11'3.566.528°
02 Oct 202530.80'10.17-6.602°
03 Oct 202531.28'11.17-6.712°
04 Oct 202531.79'12.17-6.413°
13 Oct 202532.01'21.176.426°
14 Oct 202531.60'22.177.017°
15 Oct 202531.20'23.177.219°
16 Oct 202530.83'24.177.068°
17 Oct 202530.51'25.176.617°
29 Oct 202530.28'7.48-6.622°
30 Oct 202530.70'8.48-7.213°
31 Oct 202531.18'9.48-7.461°
01 Nov 202531.71'10.48-7.298°
02 Nov 202532.24'11.48-6.672°
10 Nov 202532.23'19.487.097°
11 Nov 202531.72'20.487.804°
12 Nov 202531.23'21.488.024°
13 Nov 202530.78'22.487.808°
14 Nov 202530.39'23.487.230°
26 Nov 202530.27'5.72-6.459°
27 Nov 202530.63'6.72-7.095°
28 Nov 202531.05'7.72-7.447°
29 Nov 202531.52'8.72-7.439°
30 Nov 202532.02'9.72-7.008°
08 Dec 202532.44'17.726.680°
09 Dec 202531.91'18.727.561°
10 Dec 202531.38'19.727.916°
11 Dec 202530.87'20.727.788°
12 Dec 202530.43'21.727.247°
26 Dec 202531.06'5.93-6.615°
27 Dec 202531.43'6.93-6.624°

 

In Latitude (negative is southern)

DateSizeAgeAnglePhase
12 Jan 202531.85'12.07-6.565°
13 Jan 202531.60'13.07-6.448°
26 Jan 202530.57'26.076.621°
27 Jan 202530.96'27.076.622°
08 Feb 202531.60'9.48-6.682°
09 Feb 202531.36'10.48-6.624°
22 Feb 202530.21'23.486.703°
23 Feb 202530.61'24.486.800°
24 Feb 202531.06'25.486.559°
07 Mar 202531.74'6.97-6.762°
08 Mar 202531.39'7.97-6.766°
09 Mar 202531.05'8.97-6.404°
21 Mar 202529.85'20.976.665°
22 Mar 202530.16'21.976.852°
23 Mar 202530.54'22.976.721°
03 Apr 202532.33'4.54-6.682°
04 Apr 202531.86'5.54-6.784°
05 Apr 202531.40'6.54-6.493°
17 Apr 202529.65'18.546.506°
18 Apr 202529.86'19.546.754°
19 Apr 202530.14'20.546.698°
30 Apr 202532.98'2.19-6.438°
01 May 202532.55'3.19-6.675°
02 May 202532.05'4.19-6.485°
15 May 202529.78'17.196.605°
16 May 202529.99'18.196.587°
28 May 202532.97'0.87-6.528°
29 May 202532.60'1.87-6.460°
11 Jun 202529.82'14.876.526°
12 Jun 202530.02'15.876.530°
24 Jun 202532.85'27.87-6.457°
25 Jun 202532.68'28.87-6.502°
08 Jul 202529.84'12.566.561°
09 Jul 202530.07'13.566.600°
21 Jul 202532.45'25.56-6.493°
22 Jul 202532.38'26.56-6.624°
04 Aug 202529.76'10.206.646°
05 Aug 202529.99'11.206.748°
06 Aug 202530.28'12.206.541°
17 Aug 202532.23'23.20-6.553°
18 Aug 202532.11'24.20-6.755°
19 Aug 202531.94'25.20-6.550°
31 Aug 202529.61'7.756.661°
01 Sep 202529.78'8.756.848°
02 Sep 202530.05'9.756.733°
13 Sep 202532.46'20.75-6.508°
14 Sep 202532.22'21.75-6.794°
15 Sep 202531.95'22.75-6.665°
27 Sep 202529.47'5.176.540°
28 Sep 202529.56'6.176.805°
29 Sep 202529.74'7.176.779°
30 Sep 202530.01'8.176.453°
11 Oct 202532.77'19.17-6.687°
12 Oct 202532.41'20.17-6.652°
25 Oct 202529.42'3.486.651°
26 Oct 202529.52'4.486.681°
27 Oct 202529.69'5.486.423°
07 Nov 202533.37'16.48-6.472°
08 Nov 202533.10'17.48-6.565°
21 Nov 202529.39'0.726.513°
22 Nov 202529.46'1.726.567°
05 Dec 202533.44'14.72-6.511°
18 Dec 202529.42'27.726.502°
19 Dec 202529.48'28.726.570°

Source: NASA/GSFC

Lunar Calendar 2024

Lunar Libration Calendar 2024 (PDF
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0.0 MB)

View table online

Lunar Libration Calendar 2023 (PDF
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0.0 MB)

 


Latest Deepsky Image

2025-05-16, Celestron 8 (2030mm), Uranus-C (IMX585), UV/IR-Cut, 122 x 60sec (2 hrs)

 

Random Mini Poster

NGC 281 Annotated

View all Mini Posters

 

Latest Planetary Image

2025-01-14, Celestron 8, Uranus-C, UV/IR-Cut filter

 

Latest Movie

2023-11-23, Celestron 8, Uranus-C, UV/IR-Cut filter, exposure duration 1h42m

 

Latest Constellation Image

D5300a, 135mm lens at f2.0, LPF II, 28 x 60s, ISO800.

 

Latest Lunar Image

C8, ASI290MM, IR642 filter (April 7, 2025).

 

Latest Astro Poster

Samyang 135mm, Uranus-C, dual-band and LPR filters.

 

Latest Infographic

Celestron 8 XLT, Uranus-C, UV/IR filter

 

Latest Lunar Poster

Celestron 8 XLT, Uranus-C, UV/IR filter

 

Astronomy Picture of the Day

Click to enlarge or show full screen

 


 

Source: apod.nasa.gov

Latest STScI News Release

Another First: NASA Webb Identifies Frozen Water in Young Star System

An illustration of Sun-like star HD 181327 and its surrounding debris disk. The star is at top right. It is surrounded by a far larger debris disk that forms an incomplete ellpitical path and is cut off at the top and at right. There’s a huge cavity between the star and the disk. The label Artist's Concept appears at lower left.

May 14, 2025

An illustration of Sun-like star HD 181327 and its surrounding debris disk. The star is at top right. It is surrounded by a far larger debris disk that forms an incomplete ellpitical path and is cut off at the top and at right. There’s a huge cavity between the star and the disk. The label Artist's Concept appears at lower left.

Source: stsci.edu/news

Tonight's Sky

Has been moved to YouTube

 

Latest JWST News

Webb's Titan forecast: partly cloudy with occasional methane showers

Titan (Webb image - 11 July 2023)

14 May 2025

A science team has combined data from the NASA/ESA/CSA James Webb Space Telescope and the Keck II telescope to see evidence of cloud convection on Saturn’s moon Titan in the northern hemisphere for the first time. Most of Titan’s lakes and seas are located in that hemisphere, and are likely replenished by an occasional rain of methane and ethane. Webb also has detected a key carbon-containing molecule that gives insight into the chemical processes in Titan’s complex atmosphere.


Source: esawebb.org

JWST Picture of the Month

Infrared, optical, and X-ray views of a galaxy group

29 April 2025
This new Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope features an astounding number of galaxies. The objects in this frame span an incredible range of distances, from stars within our own Milky Way, marked by diffraction spikes, to galaxies billions of light-years away. The star of this field is a group of galaxies, the largest concentration of which can be found just below the centre of this image. These galaxies glow with white-gold light. We see this galaxy group as it appeared when the Universe was 6.5 billion years old, a little less than half the Universe’s current age. The image on the left combines infrared data from both Webb and the NASA/ESA Hubble Space Telescope, showcasing the galaxy cluster against a backdrop of thousands of other galaxies. The image on the right adds X-ray data from ESA’s XMM-Newton space observatory and NASA’s Chandra X-ray Observatory …


Source: esawebb.org

NASA Image of the Day

Nancy Grace Roman’s 100th Birthday

Dr. Nancy Grace Roman, NASA's first Chief of Astronomy, briefs Astronaut Edwin "Buzz" Aldrin on celestial objects in 1965 in Washington, D.C.

Click to enlarge or show full screen

Fri, 16 May 2025 18:19 GMT


Source: www.nasa.gov

Astro Weather

 

 

 

No, we are not on Facebook but proudly on AstroBin with Mille Gracie to the author Salvatore Iovene:


GoTo Astropical on AstroBin

 

If anybody is interested in the night life of bats, here is a funny 1-minute MP4 video (24MB).

 


Lunar Imaging e-brochure (PDF 97.9 MB)

 

EAA e-brochure (PDF 76.4 MB) In work. Pre-release for feedbacks.

 

Planetary Imaging e-brochure (PDF 17.4 MB) In work. Pre-release for feedbacks.

 


Recent

1. Certain people appear to enjoy filling forms with random letters for no purpose but insane self-satisfaction. Most of this stupid folks leave their IP addresses which are forwarded to their provider companies. All so received forms are automatically deleted. Sadly, the world is overfilled with idiots, trolls and criminals. This is a public web site without any sensitive data. No need for these irrational displays.

2. Now in the process of changing all large images to AVIF or WEBP format resulting in considerably reduced file size and download time hardly sacrificing quality as compared with JPEG.

 

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This 'once-view' will work for most pages, such as Planisphere, Deepsky Observer, Ephemerides and Today Monitor.

 


US, Ohio, Dublin

Last visit from: ES 
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Deepsky Overview
My Humble Gallery
Lunar Imaging
FOV Simulator
Astro Cameras
Let's Astrophoto
Telescopes for AP

 


 

Total Exoplanet Count: 5903

Kepler/K2: 3328 planets
TESS: 627 planets
Latest exoplanet around:  
as of 2025-05-13

ConstellationPictor
Distance69.60 parsec
Magnitude9.36 vis.
Mass0.94 xSun
Radius0.897 xSun
Temperature5666°K
Known planet(s)2
View in Database | Star Chart | DSS IR Image 🔗

 


Acton Sky Portal Observatory 2
Anglo-Australian Telescope 35
Apache Point Observatory 2
Arecibo Observatory 3
Atacama Large Millimeter Array (ALMA) 1
Bohyunsan Optical Astronomical Observatory 26
Calar Alto Observatory 26
Cerro Tololo Inter-American Observatory 5
CHaracterising ExOPlanets Satellite (CHEOPS) 3
CoRoT 35
European Southern Observatory 3
European Space Agency (ESA) Gaia Satellite 13
Fred Lawrence Whipple Observatory 6
Gemini Observatory 13
Haleakala Observatory 2
HATNet 67
HATSouth 73
Haute-Provence Observatory 67
Hubble Space Telescope 6
Infrared Survey Facility 1
James Webb Space Telescope (JWST) 1
K2 547
KELT 10
KELT-North 7
KELT-South 4
Kepler 2781
Kitt Peak National Observatory 1
KMTNet 106
KOINet 1
La Silla Observatory 286
Large Binocular Telescope Observatory 3
Las Campanas Observatory 29
Leoncito Astronomical Complex 1
Lick Observatory 36
Lowell Observatory 3
Mauna Kea Observatory 3
McDonald Observatory 31
MEarth Project 2
MOA 31
Multiple Facilities 18
Multiple Observatories 327
NASA Infrared Telescope Facility (IRTF) 1
Next-Generation Transit Survey (NGTS) 21
OGLE 108
Okayama Astrophysical Observatory 36
Palomar Observatory 2
Paranal Observatory 34
Parkes Observatory 2
Qatar 10
Roque de los Muchachos Observatory 35
South African Radio Astronomy Observatory (SAR 1
SPECULOOS Southern Observatory 2
Spitzer Space Telescope 4
Subaru Telescope 11
SuperWASP 122
SuperWASP-North 5
SuperWASP-South 32
Teide Observatory 1
Thueringer Landessternwarte Tautenburg 8
Transiting Exoplanet Survey Satellite (TESS) 627
TrES 5
United Kingdom Infrared Telescope 2
University of Canterbury Mt John Observatory 1
Very Long Baseline Array 1
W. M. Keck Observatory 189
WASP-South 11
Wide-field Infrared Survey Explorer (WISE) Sat 1
Winer Observatory 1
Xinglong Station 2
XO 6
Yunnan Astronomical Observatory 3
Zwicky Transient Facility 2


 

⎘

Next NEO Approach

2014 KF22 on 2025-May-25 10:24 UTC at 9.0518 LD

 

⎘

Next Meteor Shower

Daytime Arietids
14 May - 24 Jun, Peak: 6/7
Radiant: Star Chart, Rating: medium

 

⎘

ISS Live Cameras

NOTE: You need to log in for correct data.

 

Random Objects

 

Pollux (78 Bet Gem) in Gem [HIP 37826]

Distance: 34 light-years, Magnitude: 1.16

Pollux, an orange giant star in Gemini, one of the heavenly twin stars, is believed to have a planet of 2.3 Jupiter masses in 1.65AU distance orbiting once in 590 days.

Star Chart | DSS IR Image 🔗

 

GJ 35 (van Maanen's Star) in Pisces

Distance: 14 light-years, Magnitude: 12.4

Discovered in 1917 by the Dutch Adriaan van Maanen, Van Maanen's star is metal-rich white dwarf 0.633 times the mass and 1.3 percent the size of the Sun. The star moves at a rate of 2.98 arcseconds per year across the sky.

Star Chart | DSS IR Image 🔗

 

M15 (Globular Cluster) in Pegasus

Magnitude: 6.2

M15 is probably the most dense globular cluster in our entire Milky Way galaxy. This ball of stars measures about 210 light-years across, yet more than half of the stars you see are packed into the central area in a space just slightly more than 10 light-years in size.

Star Chart | DSS IR Image 🔗

 

Antlia (southern), area rank: 62

Located opposite of Crater with Hydra in between, this constellation is merely made of 4th and 5th-magnitude stars which are difficult to glimpse in cities because of its low elevation in the south. Antlia is derived from vacuum pumps used in the 18th century for scientific experiments.

Star Chart

 

9P/Tempel 1

Discovered in 1867, short-periodic 9P/Tempel 1 has a 7.6 km wide nucleus and orbits the sun once in 5.52 years. Due to its current aphelion distance of 4.7 AU, comet Tempel's orbit changes under gravitaional pulls by Jupiter and the inner planets. The last major change occurred in 1881, when Jupiter stretched Tempel's period to 6.5 years. On July 4, 2005, NASA's Deep Impact probe deliberately dropped an impactor which left a 150 meters wide and 30 meters deep crater on Tempel's surface. On February 15, 2011, NASA's Stardust probe passed the comet at 181km distance and imaged the crater.

 

 

Bennu (Asteroid)

Semi-major: 1.12888 AU, Size: 0.545 km

Discovered in 1999 by the LINEAR research, 101955 Bennu is an over 500 meters wide NEO/Apollo Asteroid and a planned target of NASA's OSIRIS-REx mission (launched in 2016) which is expected to return samples from the surface in 2023. Although its composition is unknown, the carbon-rich asteroid is most probably made up of materials present when the solar system formed. Bennu orbits once in 1.2 years in an average distance of 1.13AU between Venus and Mars, just like Earth inside the sun's habitable zone where the asteroid's surface is heated up to over 90°C. Bennu rotates retrograde in 4.3 hours with a spin vector between -70 and -90° ecliptic latitude. The rotation period suggests that it has not been greatly spun up by tidal or radiation forces.

 

 

Bianca (moon of Uranus)

Discovered in 1986 in Voyager 2 images, Bianca's surface probably consists of the dark, unprocessed, carbon-rich material found on the C-class of asteroids. Else not much is known about this moon of Uranus.

 

 

OGLE-2013-BLG-1761L b (in Sagittarius)

Mass: 2.7 xJup
SMA: 1.8 AU
Distance: 6900 parsec
Category: Jovian
ESI: 0

Star Chart | DSS IR Image 🔗

 

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Dark Site in Morocco

Some say that the seeing is better only in space.

Click on the banner to visit the new website of SaharaSky, the first and currently only private observatory with Casbah-style *** hotel in North Africa.

 

The owner, Fritz, is a German with a life-long passion for astronomy. Then, as he felt in deep love with Morocco and its wonderful people, he built a self-contained hotel at the feet of the Sahara about 30 kilometers to the southeast of the town of Zagora entirely in the traditional southern Moroccan Casbah-style and equipped it, besides comfortable rooms, a restaurant, spa and sauna, with a rich portfolio of optical instruments and accessories for amateur astronomers.

Fritz chose the location extremely well, a truly dark site in absence of city and street lights, blessed with an average of 300 clear dry nights annually. The observatory atop the hotel building offers a 360 degrees panoramic view on 500 square meters.

Most guests are professional and amateur astronomers, but also people of all ages with affection for the fascination of the stars and the desert. From the hotel's wide roof terrace, everybody can enjoy the starry sky dominated by the arch of the Milky Way with bare eyes or with rental telescopes and cameras.

The heart and soul of SaharaSky's observatory is Patrick from Belgium, not only a senior professional astronomer, but also a talented animator and entertainer under the Saharan stars.

A stay at SaharaSky is not limited to the night sky. SaharaSky provides equipment for solar observation, but Fritz also organises desert excursions for several days, overnight or day-return treks in a 4x4 or on dromedar backs, plus guided tours to historically invaluable local sites, such as the Petroglyphs of Ait Ouazzik.

Owner and staff as a team speak Arabic, local Berber, English, French, German, Spanish and Dutch.

Scotty, lock on to the coordinates of SaharaSky and beam us over!


SaharaSky owns telescopes with apertures from 40 to 400mm, such as Takahashi APOs, each of which can be saddled on high precision GM2000 mounts featuring GPS, GoTo and accurate guiding for both, visual observation and photography.

 

 

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