menu
A Complete Guide to the Solar System and the Night Sky
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
Timezone: Europe/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
warning Set your observing location to get relevant data
Search  close

In Evidence

New Comet C/2025 J1 (Borisov) Discovered in May 2025
Detailed information about the discovery of Comet C/2025 J1 (Borisov) and pointers to useful resources to track and observe it. Read more...

Solar System Object Locator

Use this form to visualize the position of Solar System objects at given date and time on an interactive sky map.
Time: : UTC

In Evidence

New Comet C/2025 J1 (Borisov) Discovered in May 2025
Detailed information about the discovery of Comet C/2025 J1 (Borisov) and pointers to useful resources to track and observe it. Read more...

Highlights

Popular Objects

Popular objects during the last 7 days based on the number of visualizations.

The Solar System

Current positions of the major bodies of the Solar System and the brightest comets.

Animate view
Go to 3D Solar System Viewer for more advanced features

Sun and Moon

How the Sun and the Moon look like today.

Credit: NASA, SDO, and the HMI Science Team
Information about the Sun
Sun position in sky map
Phase: Waning Gibbous  Age: 19.94 days
Information about the Moon
Moon position in sky map
R.A. Decl. Apparent Diameter MagnitudeMag ConstellationConst Charts
radio_button_checked Sun 03h 38m 49s +19° 28’ 58” 1,897.3” -26.72 trending_flat Taurus map my_location
radio_button_checked Moon 19h 41m 56s -26° 19’ 29” 1,826.7” -11.16 trending_down Sagittarius map
Legend of symbols: ⓘ

The Planets

Current essential information about the planets. Click each planet to view full details.

Planet R.A. Decl. Diameter MagnitudeMag ConstellationConst Charts
radio_button_checked Mercury 02h 43m 38s +14° 13’ 50” 5.4” -0.93 trending_up Aries map my_location
radio_button_checked Venus 00h 45m 49s +03° 45’ 06” 28.6” -4.57 trending_down Pisces map my_location
radio_button_checked Mars 09h 06m 24s +18° 20’ 52” 5.9” 1.14 trending_flat Cancer map my_location
radio_button_checked Jupiter 05h 37m 34s +23° 07’ 50” 32.1” -1.94 trending_flat Taurus map my_location
radio_button_checked Saturn 00h 01m 04s -02° 07’ 15” 15.9” 1.13 trending_flat Pisces map my_location
radio_button_checked Uranus 03h 40m 12s +19° 20’ 32” 3.4” 5.85 trending_flat Taurus map my_location
radio_button_checked Neptune 00h 07m 46s -00° 33’ 35” 2.2” 7.80 trending_flat Pisces map my_location
Legend of symbols: ⓘ

Jupiter Moons

Position of the Galilean satellites of Jupiter. A dedicated tool is available, with more advanced features.

Current positions of Jupiter's Galilean moons

List of upcoming phenomena of Jupiter's satellites:

Date Local Time Satellite Event
May 18 08:49 Io Begin Occultation
May 18 11:40 Io End Eclipse
May 18 14:35 Europa Begin Transit
May 18 15:48 Europa Begin Shadow Transit
May 18 17:13 Europa End Transit
May 18 18:27 Europa End Shadow Transit
May 19 03:05 Ganimede Begin Occultation
May 19 06:09 Io Begin Transit
May 19 06:46 Io Begin Shadow Transit
May 19 08:19 Ganimede End Eclipse
May 19 08:23 Io End Transit
May 19 09:00 Io End Shadow Transit
May 20 03:19 Io Begin Occultation
May 20 06:09 Io End Eclipse
May 20 09:41 Europa Begin Occultation
May 20 13:32 Europa End Eclipse
May 21 00:40 Io Begin Transit
May 21 01:14 Io Begin Shadow Transit
May 21 02:54 Io End Transit
May 21 03:29 Io End Shadow Transit
May 21 21:50 Io Begin Occultation
May 22 00:37 Io End Eclipse
May 22 03:59 Europa Begin Transit
May 22 05:05 Europa Begin Shadow Transit
May 22 06:38 Europa End Transit
May 22 07:45 Europa End Shadow Transit
May 22 17:25 Ganimede Begin Transit
May 22 19:10 Io Begin Transit
May 22 19:37 Ganimede Begin Shadow Transit
May 22 19:43 Io Begin Shadow Transit
May 22 19:43 Unknown Unknown
May 22 20:13 Ganimede End Transit
May 22 21:24 Io End Transit
May 22 21:58 Io End Shadow Transit
May 22 21:58 Unknown Unknown
May 22 22:26 Ganimede End Shadow Transit
May 23 16:20 Io Begin Occultation
May 23 19:06 Io End Eclipse
May 23 23:06 Europa Begin Occultation
May 24 02:51 Europa End Eclipse
May 24 13:41 Io Begin Transit
May 24 14:12 Io Begin Shadow Transit
May 24 15:55 Io End Transit
May 24 16:26 Io End Shadow Transit

Saturn Moons & Rings

Inclination of the rings of Saturn and positions of major satellites. A dedicated tool is available, with more advanced features.

Current inclination of Saturn's rings and position of its major moons

Apparent Planet Sizes

Comparison between the apparent size of the planets, measured in seconds of a degree, as they appear today.

Mercury
5.4”
Venus
28.6”
Mars
5.9”
Jupiter
32.1”
Saturn
15.9”
Uranus
3.4”
Neptune
2.2”

Credits for the planet images: NASA-APL - NASA.

Brightest Comets

List of the 10 brightest comets (open the full list of 243 comets).

Comet R.A. Decl. Magnitude (COBS)Mag Obs Magnitude (JPL)Mag Pred ConstellationConst Charts
radio_button_checked C/2025 F2 (SWAN) 05h 07m 08s -00° 58’ 09” - 9.05 trending_down Orion Ori map my_location
radio_button_checked C/2023 A3 (Tsuchinshan-ATLAS) 20h 00m 42s +26° 32’ 45” 11.5 14.36 trending_down Vulpecula Vul map my_location
radio_button_checked 29P/Schwassmann-Wachmann 09h 40m 36s +10° 24’ 30” 13.4 17.67 trending_flat Leo Leo map my_location
radio_button_checked C/2021 G2 (Atlas) 15h 18m 22s -05° 42’ 42” 13.5 14.86 trending_flat Libra Lib map my_location
radio_button_checked P/2010 H2 (Vales) 13h 10m 34s +05° 24’ 46” - 13.70 trending_down Virgo Vir map my_location
radio_button_checked C/2023 C2 (ATLAS) 23h 17m 00s +31° 38’ 25” 14.2 16.02 trending_flat Pegasus Peg map my_location
radio_button_checked C/2024 J2 (Wierzchos) 01h 25m 57s +12° 45’ 58” - 14.61 trending_down Pisces Psc map my_location
radio_button_checked C/2024 L5 (ATLAS) 11h 34m 10s -11° 45’ 29” 15.3 16.05 trending_down Crater Crt map my_location
radio_button_checked C/2022 E2 (ATLAS) 01h 51m 54s +49° 22’ 16” - 15.36 trending_flat Perseus Per map my_location
radio_button_checked C/2022 N2 (PANSTARRS) 01h 40m 37s +14° 41’ 10” - 15.49 trending_flat Pisces Psc map my_location
Legend of symbols: ⓘ

We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

Brightest Asteroids

List of the 10 brightest asteroids (open the full list of 78 asteroids and dwarf planets.)

Asteroid R.A. Decl. MagnitudeMag ConstellationConst Charts
radio_button_checked 4 Vesta 14h 38m 26s -03° 58’ 14” 5.80 trending_down Virgo map my_location
radio_button_checked 1 Ceres 00h 15m 46s -08° 18’ 34” 9.29 trending_flat Cetus map my_location
radio_button_checked 7 Iris 03h 57m 52s +21° 27’ 16” 9.54 trending_up Taurus map my_location
radio_button_checked 9 Metis 15h 00m 37s -14° 06’ 32” 9.87 trending_down Libra map my_location
radio_button_checked 6 Hebe 21h 53m 48s -07° 19’ 08” 9.94 trending_up Aquarius map my_location
radio_button_checked 3 Juno 15h 41m 02s -02° 25’ 43” 9.99 trending_flat Serpens map my_location
radio_button_checked 2 Pallas 21h 05m 32s +14° 31’ 56” 10.26 trending_up Delphinus map my_location
radio_button_checked 349 Dembowska 15h 07m 16s -21° 54’ 03” 10.35 trending_down Libra map my_location
radio_button_checked 15 Eunomia 07h 09m 57s +20° 39’ 18” 10.72 trending_down Gemini map my_location
radio_button_checked 5 Astraea 17h 19m 36s -15° 12’ 48” 10.89 trending_up Serpens map my_location
Legend of symbols: ⓘ

Active Meteor Showers

List of the currently active meteor showers.

Name Peak Radiant R.A. Radiant Decl. ZHR ⓘ Rating Parent Object Charts
radio_button_checked Eta Aquariids 6 May 22h 30m -01° 50 bright 1P/Halley map
radio_button_checked Daytime Arietids 7 Jun 02h 53m +24° 50 medium 1566 Icarus ? map
Legend of symbols: ⓘ