Your guide to the Solar System and the night sky
Latest Perseverance Images received 0 hours 15 mins ago for Sol75, Sol74
🌎  Greenwich, United Kingdom [change]

Recent articles

How Newly Discovered Comets Are Named
Discover the meaning of the naming convention used to name newly discovered comets
Space Exploration Events Happening in 2021
From Perseverance landing on Mars to the launch of the James Webb space telescope, here is a list of key space exploration events that will happen on 2021

Today's highlights

  • NEW! Check out the Mars Perseverance Rover Photostream!
  • The Sun is in the constellation of Aries. The Moon is in the constellation of Aquarius and it is in Waning Crescent phase.
  • Comet C/2020 R4 (ATLAS) latest observed magnitude is 9.4 and it is in the constellation of Coma. It should be visible with the help of a binocular with a 60-70mm aperture or a small telescope.
  • Comet C/2020 T2 (Palomar) latest observed magnitude is 11.1 and it is in the constellation of Canes Venatici. It should be visible with the help of a telescope havng an aperture of 6 inches (150mm) or more.
  • Comet 7P/Pons-Winnecke latest observed magnitude is 12.7 and it is in the constellation of Aquila. It should be visible with the help of a telescope havng an aperture of 10 inches (250mm) or more.
  • The next close approach with a Near Earth Object (NEO) will happen with Asteroid (NEO) 2021 GK1 on May 11 2021 at 17:22 UTC (4 days 13 hours 38 minutes), at an approach distance of 567,354 kilometers, or 1.48 lunar distances, and a relative speed of 2.01 kilometers per second.

Your guide to the Solar System and the night sky

Quick links

Popular Objects This Week

Popular objects this week

Current Solar System Configuration

This interactive 3D model shows the today's configuration of the major bodies of the Solar System along their orbits. It is an experimental feature and it requires a WebGL enabled browser. For more advanced features, check out our 3D Solar System Simulator. Please provide us feedback!

Animate view
Left-click and drag to change the viewing angles; Right-click and drag to pan; Pinch or mouse-wheel to zoom.
View larger 3D Solar System Simulator

The Sun and the Moon Today

Here is how the Sun and the Moon look like today.

Credit: NASA, SDO, and the HMI Science Team
Information about the Sun
Current Sun Sky Map
Phase: Waning Crescent  Age: 25.33 days
Information about the Moon
Current Moon Sky Map
R.A. Decl. Apparent Diameter MagnitudeMag ConstellationConst Map
object currently below the horizon Sun 02h 56m 14s +16° 46’ 23” 1,901.6” -26.72 Aries Show sky map
current altitude less than 30 degrees above the horizon Moon 23h 53m 51s -07° 07’ 59” 1,798.0” -8.18 Aquarius Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

The Planets Today

Key information about the Planets today. Click each row to go to each planet's detail page. Click the blue 'full screen' icon () to view an accurate deep sky chart showing the planet's current position.

Planet R.A. Decl. Apparent Diameter MagnitudeMag ConstellationConst Map
object currently below the horizon Venus 03h 40m 19s +19° 27’ 44” 9.9” -3.88 Taurus Show sky map
current altitude less than 30 degrees above the horizon Jupiter 22h 05m 12s -12° 34’ 48” 37.3” -2.25 Aquarius Show sky map
object currently below the horizon Mercury 04h 10m 12s +23° 18’ 04” 6.4” -0.65 Taurus Show sky map
current altitude less than 30 degrees above the horizon Saturn 21h 02m 35s -17° 28’ 42” 16.3” 1.34 Capricornus Show sky map
object currently below the horizon Mars 06h 35m 15s +24° 37’ 24” 4.5” 1.60 Gemini Show sky map
object currently below the horizon Uranus 02h 33m 51s +14° 39’ 56” 3.4” 5.88 Aries Show sky map
current altitude less than 30 degrees above the horizon Neptune 23h 33m 17s -04° 04’ 22” 2.2” 7.93 Aquarius Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Current Planets Apparent Size Comparison

Mercury
6.4”
Venus
9.9”
Mars
4.5”
Jupiter
37.3”
Saturn
16.3”
Uranus
3.4”
Neptune
2.2”

Images credits: NASA-APL - NASA.

Bright Comets Today

These are the brightest comets currently visible in the sky. The Observed Magnitude and Coma Diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemeris service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication.

Click on each line to go to the comet's detail page, or click the blue 'full screen' icon () to view an accurate deep sky chart showing the comet's current position in real time. Also check the full list of tracked comets (197)

Comet R.A. Decl. Magnitude (Observed)Mag Obs Magnitude (Estimated)Mag Pred Coma DiameterComa Diam ConstellationConst Map
current altitude less than 30 degrees above the horizon C/2020 R4 (ATLAS) 12h 37m 00s +31° 07’ 32” 9.4 14.02 8.0' Coma Com Show sky map
current altitude greater than 30 degrees above the horizon C/2020 T2 (Palomar) 13h 42m 18s +31° 06’ 35” 11.1 13.87 4.7' Canes Venatici CVn Show sky map
current altitude greater than 30 degrees above the horizon 7P/Pons-Winnecke 19h 54m 24s +01° 52’ 44” 12.7 14.66 4.6' Aquila Aql Show sky map
current altitude less than 30 degrees above the horizon C/2019 L3 (ATLAS) 03h 28m 17s +50° 39’ 38” 12.8 14.53 2.1' Perseus Per Show sky map
object currently below the horizon C/2021 D1 (SWAN) 05h 17m 21s +33° 27’ 14” 13.3 16.47 2.6' Auriga Aur Show sky map
current altitude less than 30 degrees above the horizon 15P/Finlay 22h 41m 54s -15° 47’ 55” - 13.48 - Aquarius Aqr Show sky map
current altitude greater than 30 degrees above the horizon C/2017 K2 (PANSTARRS) 18h 18m 13s +42° 27’ 46” 13.8 14.78 1.8' Lyra Lyr Show sky map
object currently below the horizon C/2020 J1 (SONEAR) 15h 51m 03s -32° 26’ 58” - 14.16 - Lupus Lup Show sky map
object currently below the horizon C/2019 N1 (ATLAS) 04h 27m 40s -56° 38’ 00” 14.3 14.99 0.9' Dorado Dor Show sky map
object currently below the horizon C/2019 T4 (ATLAS) 08h 14m 17s -28° 18’ 53” 14.5 15.53 0.3' Puppis Pup Show sky map
current altitude less than 30 degrees above the horizon 246P/NEAT 19h 27m 22s -26° 29’ 38” - 14.66 - Sagittarius Sgr Show sky map
object currently below the horizon C/2019 F1 (ATLAS-Africano) 20h 38m 51s -75° 17’ 06” - 14.69 - Octans Oct Show sky map
object currently below the horizon 75D/Kohoutek (Lost) 06h 10m 02s +21° 26’ 14” - 15.11 - Orion Ori Show sky map
object currently below the horizon C/2020 F5 (MASTER) 23h 26m 02s -36° 59’ 08” - 15.48 - Grus Gru Show sky map
object currently below the horizon 156P/Russell-LINEAR 07h 16m 17s +37° 24’ 22” 15.6 20.72 1.2' Auriga Aur Show sky map
current altitude less than 30 degrees above the horizon C/2020 S8 (Lemmon) 13h 13m 25s +08° 13’ 29” 15.6 17.01 1.0' Virgo Vir Show sky map
current altitude less than 30 degrees above the horizon 297P/Beshore 18h 53m 23s -18° 59’ 51” - 15.78 - Sagittarius Sgr Show sky map
current altitude less than 30 degrees above the horizon 297P/Beshore (2008 J2) 18h 53m 23s -18° 59’ 51” - 15.80 - Sagittarius Sgr Show sky map
current altitude less than 30 degrees above the horizon 4P/Faye 23h 47m 31s +02° 47’ 19” - 16.03 - Pisces Psc Show sky map
object currently below the horizon C/2017 T2 (PANSTARRS) 17h 26m 20s -43° 42’ 27” - 16.04 - Scorpius Sco Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

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.

Bright Asteroids Today

These are the top 10 brightest asteroids visible tonight. Click on each line to go to the asteroids's detail page, or click the blue 'full screen' icon () to view an accurate deep sky chart showing the asteroids's current position in real time. Also check the full list of tracked asteroids and dwarf planets (79)

Asteroid R.A. Decl. MagnitudeMag ConstellationConst Map
object currently below the horizon 4 Vesta 10h 51m 08s +17° 21’ 20” 6.89 Leo Show sky map
object currently below the horizon 1 Ceres 01h 58m 14s +04° 54’ 24” 9.14 Pisces Show sky map
current altitude less than 30 degrees above the horizon 7 Iris 01h 18m 58s +12° 08’ 03” 9.96 Pisces Show sky map
current altitude less than 30 degrees above the horizon 6 Hebe 19h 55m 47s -07° 48’ 16” 10.18 Aquila Show sky map
current altitude less than 30 degrees above the horizon 9 Metis 12h 39m 22s +02° 26’ 53” 10.23 Virgo Show sky map
current altitude greater than 30 degrees above the horizon 3 Juno 17h 29m 30s -05° 51’ 20” 10.45 Ophiucus Show sky map
current altitude less than 30 degrees above the horizon 2 Pallas 22h 54m 47s +06° 34’ 59” 10.54 Pisces Show sky map
current altitude less than 30 degrees above the horizon 12 Victoria 20h 10m 36s -13° 10’ 06” 10.55 Capricornus Show sky map
object currently below the horizon 15 Eunomia 08h 18m 24s +13° 17’ 38” 10.57 Cancer Show sky map
object currently below the horizon 29 Amphitrite 10h 03m 59s +12° 36’ 31” 10.70 Leo Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Active Meteor Showers Today

This is a list of the currently active meteor showers. The celestial coordinates refer to the meteor shower radiant position, i.e. the point in the sky where the meteors appear to come from. The ZHR value refers to the Zenithal Hourly Rate, i.e. the average number of meteors an individual observer could see in an hour, assuming perfectly dark sky conditions. This number is an estimate, the actual number an observer could see depends on the actual intensity of the shower (which can be highly variable) and on the actual sky conditions. Clicking on the blue square icon will bring you to a sky map showing the radiant position. The data used here is derived from Wikipedia.

Name Peak Radiant R.A. Radiant Decl. ZHR Rating Parent Object Map
current altitude less than 30 degrees above the horizon Eta Aquariids 6 May 22h 30m -01° 50 bright 1P/Halley Show sky map
current altitude greater than 30 degrees above the horizon Eta Lyrids 9 May 19h 06m +44° 3 medium Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]