Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Today's quick hilights

  • The Sun is in the constellation of Ophiucus. The Moon is in the constellation of Cancer and it is in Waning Gibbous phase.
  • Jupiter and Saturn are in conjunction with an apparent angular separation of 1° 49’ 30”, currently decreasing. See in Planetarium.
  • Comet C/2020 S3 (Erasmus) latest estimated magnitude is 7.78 and it is in the constellation of Libra. It should be visible with the help of a binocular with a 40-50mm aperture or a small telescope.
  • Comet C/2020 M3 (ATLAS) latest observed magnitude is 8.2 and it is in the constellation of Auriga. It should be visible with the help of a binocular with a 40-50mm aperture or a small telescope.
  • Comet 88P/Howell latest observed magnitude is 10.5 and it is in the constellation of Capricornus. It should be visible with the help of a telescope havng an aperture of 6 inches (150mm) or more.
  • The next close approach with a Near Earth Object (NEO) will happen with Asteroid (NEO) 2018 PK21 on Dec 8 2020 at 02:24 UTC (2 days 22 hours 59 minutes), at an approach distance of 4,681,198 kilometers, or 12.18 lunar distances, and a relative speed of 3.13 kilometers per second.
  • Asteroid 16 Psyche is at opposition, current elongation 174.2°

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!

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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 Gibbous  Age: 19.23 days
Information about the Moon
Current Moon Sky Map
R.A. Decl. Apparent Diameter MagnitudeMag ConstellationConst Map
object currently below the horizon Sun 16h 46m 59s -22° 22’ 38” 1,947.3” -26.77 Ophiucus Show sky map
current altitude greater than 30 degrees above the horizon Moon 08h 44m 09s +21° 42’ 56” 1,851.3” -11.28 Cancer 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 14h 58m 16s -15° 17’ 35” 11.5” -3.90 Libra Show sky map
object currently below the horizon Jupiter 19h 55m 14s -21° 16’ 28” 33.4” -2.01 Sagittarius Show sky map
object currently below the horizon Mars 01h 05m 03s +07° 03’ 00” 13.9” -1.01 Pisces Show sky map
object currently below the horizon Mercury 16h 11m 49s -21° 02’ 31” 4.8” -0.83 Scorpius Show sky map
object currently below the horizon Saturn 20h 02m 48s -20° 48’ 51” 15.1” 1.43 Sagittarius Show sky map
current altitude less than 30 degrees above the horizon Uranus 02h 19m 36s +13° 26’ 29” 3.7” 5.69 Aries Show sky map
object currently below the horizon Neptune 23h 17m 08s -05° 47’ 42” 2.3” 7.88 Aquarius Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Current Planets Apparent Size Comparison

Mercury
4.8”
Venus
11.5”
Mars
13.9”
Jupiter
33.4”
Saturn
15.1”
Uranus
3.7”
Neptune
2.3”

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 (203)

Comet R.A. Decl. Magnitude (Observed)Mag Obs Magnitude (Estimated)Mag Pred Coma DiameterComa Diam ConstellationConst Map
object currently below the horizon Comet C/2020 S3 15h 11m 30s -23° 39’ 01” - 7.78 - Libra Lib Show sky map
current altitude greater than 30 degrees above the horizon C/2020 M3 (ATLAS) 05h 22m 59s +29° 42’ 58” 8.2 13.89 9.0' Auriga Aur Show sky map
object currently below the horizon 88P/Howell 20h 53m 45s -21° 09’ 03” 10.5 15.30 2.8' Capricornus Cap Show sky map
object currently below the horizon 11P/Tempel-Swift-LINEAR 01h 02m 51s +10° 14’ 00” 13.6 17.52 3.5' Pisces Psc Show sky map
object currently below the horizon C/2019 N1 (ATLAS) 14h 01m 16s -24° 04’ 20” - 13.92 - Hydra Hya Show sky map
current altitude less than 30 degrees above the horizon C/2019 L3 (ATLAS) 23h 55m 41s +60° 34’ 26” 14.1 15.13 1.0' Cassiopeia Cas Show sky map
current altitude greater than 30 degrees above the horizon C/2018 N2 (ASASSN) 15h 57m 56s +59° 55’ 00” 14.7 16.07 1.6' Draco Dra Show sky map
current altitude less than 30 degrees above the horizon C/2017 K2 (PANSTARRS) 17h 36m 09s +36° 07’ 12” 15.0 15.84 1.3' Hercules Her Show sky map
object currently below the horizon C/2020 F5 (MASTER) 19h 49m 34s -61° 07’ 51” - 15.48 - Pavo Pav Show sky map
object currently below the horizon C/2017 T2 (PANSTARRS) 16h 19m 52s -22° 09’ 22” - 15.49 - Scorpius Sco Show sky map
current altitude less than 30 degrees above the horizon 29P/Schwassmann-Wachmann 1 02h 19m 20s +25° 29’ 51” - 15.54 - Aries Ari Show sky map
object currently below the horizon C/2020 J1 (SONEAR) 17h 28m 35s -44° 28’ 15” - 15.55 - Scorpius Sco Show sky map
current altitude less than 30 degrees above the horizon C/2020 F8 (SWAN) 04h 48m 48s -11° 15’ 27” - 15.83 - Eridanus Eri Show sky map
object currently below the horizon C/2019 F1 (ATLAS-Africano) 15h 40m 14s -41° 33’ 05” - 15.88 - Lupus Lup Show sky map
current altitude less than 30 degrees above the horizon C/2020 N1 (PANSTARRS) 23h 30m 14s +40° 20’ 44” - 15.95 - Andromeda And Show sky map
object currently below the horizon 17P/Holmes 20h 18m 10s -20° 57’ 29” 17.0 16.24 2.0' Capricornus Cap Show sky map
object currently below the horizon C/2017 B3 (LINEAR) 23h 42m 19s +03° 04’ 10” 16.5 17.79 1.1' Pisces Psc Show sky map
current altitude less than 30 degrees above the horizon C/2019 T4 (ATLAS) 08h 32m 53s -38° 18’ 08” - 16.55 - Vela Vel Show sky map
object currently below the horizon P/2010 H2 (Vales) 23h 19m 24s -19° 11’ 47” - 16.70 - Aquarius Aqr Show sky map
object currently below the horizon C/2019 K7 (Smith) 18h 38m 07s +19° 51’ 50” - 16.74 - Hercules Her 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
current altitude greater than 30 degrees above the horizon 4 Vesta 11h 09m 33s +10° 25’ 46” 7.59 Leo Show sky map
current altitude less than 30 degrees above the horizon 8 Flora 02h 17m 08s +03° 54’ 20” 8.72 Cetus Show sky map
object currently below the horizon 1 Ceres 22h 41m 14s -19° 46’ 47” 9.12 Aquarius Show sky map
current altitude greater than 30 degrees above the horizon 15 Eunomia 08h 48m 25s +18° 43’ 11” 9.29 Cancer Show sky map
current altitude greater than 30 degrees above the horizon 16 Psyche 05h 03m 15s +18° 02’ 56” 9.41 Taurus Show sky map
current altitude greater than 30 degrees above the horizon 79 Eurynome 05h 25m 12s +16° 14’ 34” 10.01 Taurus Show sky map
current altitude greater than 30 degrees above the horizon 13 Egeria 06h 13m 10s +41° 39’ 26” 10.21 Auriga Show sky map
object currently below the horizon 11 Parthenope 01h 37m 52s +02° 56’ 28” 10.40 Pisces Show sky map
current altitude greater than 30 degrees above the horizon 18 Melpomene 09h 26m 52s +07° 20’ 56” 10.53 Leo Show sky map
object currently below the horizon 7 Iris 19h 58m 06s -16° 55’ 41” 10.56 Sagittarius 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 greater than 30 degrees above the horizon Geminids 14 Dec 07h 30m +33° 120 medium 3200 Phaethon Show sky map
object currently below the horizon Puppid-Velids multiple 08h 11m -45° 10 medium Show sky map
current altitude greater than 30 degrees above the horizon Northern Taurids 12 Nov 03h 53m +22° 5 bright Comet Encke Show sky map
current altitude greater than 30 degrees above the horizon Dec. Leonis Minorids 20 Dec 10h 41m +30° 5 medium Show sky map
current altitude greater than 30 degrees above the horizon Sigma Hydrids 11 Dec 08h 30m +02° 3 medium Show sky map
current altitude greater than 30 degrees above the horizon November Orionids 28 Nov 06h 05m +16° 3 medium Show sky map
current altitude greater than 30 degrees above the horizon Monocerotids 8 Dec 06h 42m +08° 2 medium C/1917 F1 (Mellish) Show sky map
object currently below the horizon Phoenicids 2 Dec 01h 11m -53° variable medium 289P/Blanpain Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]