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

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Sun & Moon Today

JD 2460764  DoY 88  WoY 13
🔼05:33
🔽18:03

TWILIGHT
04:08~19:29
Ecl Long 9.0°
in Pisces

New
Age 0.03 d
Phase 0.3°
Ecl Long 9.3°
in Pisces

SSE

Observable comet count is 1188

Current exoplanet count is 5862

Current longitude II of the GRS is  68°



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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 11.2 MB)

View table online

Lunar Libration Calendar 2023 (PDF 3.3 MB)

 


Latest Deepsky Image

2025-03-21, TS-71SDQ (450mm), Uranus-C (IMX585), Quad-band filter, 147 x 60sec

 

Random Mini Poster

NGC 1333 Annotated

View all 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 1h42m

 

Latest Constellation Image

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

 

Latest Lunar Image

C8, ASI290MM, IR642 filter (Mar 11, 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

STScI Astronomer Carol Christian Elected AAAS Fellow

Woman with blue sky and puffy white clouds in the background. She has short blonde wind-swept hair. She is wearing dark sunglasses and a green tee-shirt with a V-shaped neckline and short sleeves.

March 27, 2025

Woman with blue sky and puffy white clouds in the background. She has short blonde wind-swept hair. She is wearing dark sunglasses and a green tee-shirt with a V-shaped neckline and short sleeves.

Source: stsci.edu/news

Tonight's Sky

Has been moved to YouTube

Latest JWST News

Webb sees galaxy is mysteriously clearing fog of early Universe

JADES-GS-z13-1 in the GOODS-S field (NIRCam image, annotated)

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

JWST Picture of the Month

Spying a spiral through a cosmic lens

https://cdn.esawebb.org/archives/images/thumb350x/potm2503a.jpg

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

NASA Image of the Day

Turning Vanes inside the Altitude Wind Tunnel

In this February 1944 publicity photo, men stand in front of turning vanes inside the Altitude Wind Tunnel (AWT) at the National Advisory Committee for Aeronautics Aircraft Engine Research Laboratory. The AWT was the only wind tunnel capable of testing full-size aircraft engines in simulated altitude conditions. A large wooden drive fan, located on the other side of these vanes, created wind speeds up to 500 miles per hour.

Click to enlarge or show full screen

Fri, 28 Mar 2025 16:55 GMT


Source: www.nasa.gov

 

 

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 100.5 MB)

 

EAA e-brochure (PDF 90.8 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. This kind of human crap should not be entitled for using the internet. 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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Website tested under Windows and Android only. Although largely compatible with smartphones this website is primarily designed for desktops, note books and tablets. This applies in particular to database tables. Double click on page top banners to remove them.

 

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Please adjust your monitor's gamma and contrast, etc. if you cannot distinguish all shades of gray. Click for an enlarged color pattern.

 

 

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If you do not wish to register (no problem) but need to see data for your location only once or so, then you can add the following string to the URL:
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where xx.xxx need to be replaced by your geographic coordinates, z.zz with your time zone. This data will not be stored.

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

 


US, Arizona, Phoenix
US, Ohio, Dublin

Last visit from: CN 
on page index.php using iPhone O/S.

Unique visitors today: 54 (since 0:00 UTC) from:
                       

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Site Updates

 


Deepsky Overview
My Humble Gallery
Lunar Imaging
FOV Simulator
Astro Cameras
Let's Astrophoto
Telescopes for AP

 


 

Total Exoplanet Count: 5862

Kepler/K2: 3326 planets
TESS: 618 planets
Latest exoplanet around:  
as of 2025-03-18

ConstellationDraco
Distance78.74 parsec
Magnitude11.11 vis.
Mass0.71 xSun
Radius0.72 xSun
Temperature4975°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 1
Arecibo Observatory 3
Atacama Large Millimeter Array (ALMA) 1
Bohyunsan Optical Astronomical Observatory 26
Calar Alto Observatory 22
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 2779
Kitt Peak National Observatory 1
KMTNet 101
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 2
McDonald Observatory 31
MEarth Project 2
MOA 31
Multiple Facilities 18
Multiple Observatories 325
NASA Infrared Telescope Facility (IRTF) 1
Next-Generation Transit Survey (NGTS) 21
OGLE 106
Okayama Astrophysical Observatory 36
Palomar Observatory 2
Paranal Observatory 30
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 113
SuperWASP-North 5
SuperWASP-South 32
Teide Observatory 1
Thueringer Landessternwarte Tautenburg 8
Transiting Exoplanet Survey Satellite (TESS) 618
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


 

⎘

Next NEO Approach

2025 FZ1 on 2025-Mar-29 04:21 UTC at 6.4196 LD

 

⎘

Next Meteor Shower

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).

 

⎘

ISS Live Cameras

NOTE: You need to log in for correct data.

 

Random Objects

 

Bellatrix (24 Gam Ori) in Ori [HIP 25336]

Distance: 243 light-years, Magnitude: 1.64

Bellatrix, or 'Amazon Star' is the right shoulder star of Orion is an eruptive variable star changing magnitudes between 1.59 and 1.64 visual.

Star Chart | DSS IR Image 🔗

 

GJ 406 (Wolf 359) in Leo

Distance: 8 light-years, Magnitude: 13.5

Wolf 359 is a red dwarf and a flare star exhibiting absorption lines of water and titanium (II) oxide in its spectrum and emits strong bursts of X-ray and gamma ray radiation. The surface with an effective temperature of 2800K (low enough for chemical compounds to form and survive) has a magnetic field that is stronger than the average magnetic field on the sun.

Star Chart | DSS IR Image 🔗

 

M97 (Planetary Nebula) in Ursa Major

Magnitude: 12

M97 is a very unusual and dynamic planetary nebula spanning 3 light-years. Inside a 6,000 years old shell is a dying 16th magnitude star 0.7x the mass of our Sun.

Star Chart | DSS IR Image 🔗

 

Dorado (southern), area rank: 72

Dorado is not Latin but Spanish. Based on the description of the sea voyager Theodorus in the 16th century, the constellation was created in the 17th century by astronomer Johann Bayer. At 25 degrees northern latitude it can be seen only partially in winter. Dorado is rich in deep sky objects. The Great Magellanic Cloud lies on the boundary with Mensa. The South ecliptic pole also lies within this constellation.

Star Chart

 

246P/NEAT

246P/NEAT is a periodic comet discovered on 2004 March 28 by Near-Earth Asteroid Tracking (NEAT) using the 1.2-meter reflector at Haleakala. It was given the permanent number 246P on 2011 January 14. It is a Quasi-Hilda comet. Due to perturbations by Jupiter, the 2005, 2013 and 2021 perihelion passages will be closer to the Sun. The comet is observable all through its orbit. [Wikipedia]

 

 

Asbolus (Centaur)

Semi-major: 17.92890 AU, Size: 84 km

Discovered by James V. Scotti and Robert Jedicke of Spacewatch at Kitt Peak Observatory on April 5, 1995, 8405 Asbolus is believed to have a fresh impact crater on its surface, less than 10 million years old.

 

 

Hippocamp (moon of Neptune)

Discovered in Feb 2019 in archival data from the Hubble Space Telescope of 2013, the latest know moon of Neptune was named Hippocamp (originally designated S/2004 N 1), is an about 35 km wide body. It appears to have been split from another moon, Proteus, after a collision. The orbits of the two moons are presently 12,000 km apart.

 

 

OGLE-2019-BLG-0304L b (in Ophiuchus)

Mass: 0.51 xJup
SMA: 1.23 AU
Distance: 6980 parsec
Category: Jovian
ESI: 0

Star Chart | DSS IR Image 🔗

 

Android Astronomy Apps

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Earth

 

 

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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Comments

admin
[76] 2025-02-26 07:47:23
Hi Gilles, thanks a lot for your kind feed back. The download is working again. Cheers Robert

Gilles Morain
[75] 2025-02-25 12:32:07
Hi, I just found your wonderful web site with so much practical info and tools that I will probably spend too much time on it :-) Congratulations for all this. I just wanted to inform you that I noticed an issue with the "DeepSky for Starters" PDF download: the downloaded file fails to open once retrieved on my computer (moon & planetary are ok though). Best regards, Gilles (from France)