Your guide to the Solar System and the night sky
New! Mars Perseverance Rover Photostream
🌎  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 Aquarius. The Moon is in the constellation of Ophiucus and it is in Waning Crescent (just past Last Quarter) phase.
  • Mercury and Jupiter are in conjunction with an apparent angular separation of 0° 54’ 07”, currently increasing. See in Planetarium.
  • Comet 88P/Howell latest observed magnitude is 12.8 and it is in the constellation of Cetus. It should be visible with the help of a telescope havng an aperture of 10 inches (250mm) or more.
  • Comet C/2019 L3 (ATLAS) latest observed magnitude is 12.9 and it is in the constellation of Perseus. It should be visible with the help of a telescope havng an aperture of 10 inches (250mm) or more.
  • Comet 156P/Russell-LINEAR latest observed magnitude is 13.4 and it is in the constellation of Perseus. 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 EB on Mar 6 2021 at 17:43 UTC (9 hours 40 minutes), at an approach distance of 2,729,971 kilometers, or 7.10 lunar distances, and a relative speed of 12.53 kilometers per second.
  • Asteroid 4 Vesta is at opposition, current elongation 169.0°
  • Asteroid 29 Amphitrite is at opposition, current elongation 164.5°

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 (just past Last Quarter)  Age: 22.43 days
Information about the Moon
Current Moon Sky Map
R.A. Decl. Apparent Diameter MagnitudeMag ConstellationConst Map
current altitude less than 30 degrees above the horizon Sun 23h 07m 15s -05° 38’ 51” 1,934.1” -26.76 Aquarius Show sky map
current altitude less than 30 degrees above the horizon Moon 17h 11m 43s -24° 16’ 57” 1,921.7” -10.06 Ophiucus 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
current altitude less than 30 degrees above the horizon Venus 22h 50m 51s -08° 51’ 46” 9.8” -3.92 Aquarius Show sky map
current altitude less than 30 degrees above the horizon Jupiter 21h 20m 37s -16° 08’ 22” 32.5” -1.98 Capricornus Show sky map
current altitude less than 30 degrees above the horizon Mercury 21h 23m 59s -15° 44’ 14” 7.1” 0.06 Capricornus Show sky map
object currently below the horizon Mars 03h 54m 04s +21° 46’ 29” 6.2” 0.99 Taurus Show sky map
current altitude less than 30 degrees above the horizon Saturn 20h 45m 11s -18° 31’ 38” 14.9” 1.42 Capricornus Show sky map
object currently below the horizon Uranus 02h 21m 12s +13° 37’ 13” 3.4” 5.84 Aries Show sky map
current altitude less than 30 degrees above the horizon Neptune 23h 25m 32s -04° 52’ 33” 2.2” 7.96 Aquarius Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Current Planets Apparent Size Comparison

Mercury
7.1”
Venus
9.8”
Mars
6.2”
Jupiter
32.5”
Saturn
14.9”
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 (193)

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 88P/Howell 00h 43m 22s +02° 45’ 41” 12.8 17.46 3.4' Cetus Cet Show sky map
current altitude greater than 30 degrees above the horizon C/2019 L3 (ATLAS) 01h 35m 28s +51° 48’ 46” 12.9 14.71 1.2' Perseus Per Show sky map
current altitude less than 30 degrees above the horizon 156P/Russell-LINEAR 04h 25m 10s +40° 40’ 19” 13.4 18.08 1.4' Perseus Per Show sky map
object currently below the horizon C/2021 A4 (NEOWISE) 04h 23m 56s +08° 44’ 48” 13.5 15.96 1.2' Taurus Tau Show sky map
current altitude less than 30 degrees above the horizon C/2020 R4 (ATLAS) 20h 34m 58s -10° 36’ 45” - 13.52 - Capricornus Cap Show sky map
object currently below the horizon P/2016 J3 (STEREO) 19h 15m 57s -52° 33’ 11” - 13.60 - Telescopium Tel Show sky map
current altitude greater than 30 degrees above the horizon C/2020 T2 (Palomar) 14h 06m 30s +31° 45’ 48” 13.7 15.00 3.7' Canes Venatici CVn Show sky map
object currently below the horizon C/2019 N1 (ATLAS) 02h 22m 10s -84° 46’ 09” - 13.96 - Octans Oct Show sky map
current altitude less than 30 degrees above the horizon C/2020 M3 (ATLAS) 06h 22m 47s +47° 09’ 25” 14.1 18.21 2.2' Auriga Aur Show sky map
object currently below the horizon 11P/Tempel-Swift-LINEAR 05h 00m 38s +08° 58’ 31” 14.2 20.92 1.0' Orion Ori Show sky map
object currently below the horizon 75D/Kohoutek (Lost) 03h 24m 30s +19° 07’ 45” - 14.37 - Aries Ari Show sky map
current altitude greater than 30 degrees above the horizon C/2017 K2 (PANSTARRS) 18h 24m 30s +37° 14’ 22” 14.5 15.30 1.4' Lyra Lyr Show sky map
object currently below the horizon 398P/Boattini 07h 06m 03s +27° 12’ 03” 14.6 16.64 1.1' Gemini Gem Show sky map
object currently below the horizon C/2020 J1 (SONEAR) 17h 44m 30s -39° 53’ 05” - 14.65 - Scorpius Sco Show sky map
object currently below the horizon C/2019 F1 (ATLAS-Africano) 18h 13m 03s -60° 20’ 07” - 15.12 - Pavo Pav Show sky map
current altitude less than 30 degrees above the horizon 246P/NEAT 18h 28m 44s -23° 00’ 18” - 15.23 - Sagittarius Sgr Show sky map
object currently below the horizon C/2020 F5 (MASTER) 22h 22m 58s -44° 42’ 21” - 15.42 - Grus Gru Show sky map
object currently below the horizon C/2019 T4 (ATLAS) 08h 00m 20s -37° 21’ 34” - 15.55 - Puppis Pup Show sky map
object currently below the horizon 141P/Machholz 2 04h 26m 58s +06° 36’ 03” - 15.70 - Taurus Tau Show sky map
current altitude less than 30 degrees above the horizon C/2021 A2 05h 13m 22s +39° 36’ 22” - 15.85 - Auriga Aur 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 11h 16m 58s +16° 20’ 27” 5.84 Leo Show sky map
current altitude less than 30 degrees above the horizon 1 Ceres 00h 29m 29s -05° 01’ 42” 9.19 Cetus Show sky map
object currently below the horizon 29 Amphitrite 10h 15m 28s +14° 23’ 49” 9.39 Leo Show sky map
object currently below the horizon 15 Eunomia 07h 42m 10s +15° 59’ 17” 9.53 Gemini Show sky map
current altitude less than 30 degrees above the horizon 7 Iris 23h 03m 09s -02° 04’ 11” 9.74 Pisces Show sky map
current altitude less than 30 degrees above the horizon 9 Metis 13h 28m 56s -01° 08’ 30” 10.03 Virgo Show sky map
object currently below the horizon 14 Irene 08h 08m 26s +31° 15’ 30” 10.10 Cancer Show sky map
object currently below the horizon 18 Melpomene 08h 32m 26s +16° 14’ 40” 10.35 Cancer Show sky map
current altitude less than 30 degrees above the horizon 2 Pallas 21h 45m 12s +01° 54’ 13” 10.50 Aquarius Show sky map
object currently below the horizon 8 Flora 03h 53m 47s +18° 04’ 30” 10.53 Taurus 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
object currently below the horizon Gamma Normids 14 Mar 15h 54m -50° 6 bright Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]