Online Sky Maps and Ephemeris for Solar System Objects

We provide detailed finder charts and ephemerides for the major Solar System objects and a selection of the most interesting asteroids (29), comets (74) and spacecraft (8). This site includes also an interactive online Planetarium which can be used to compute and visualize the positions of all the objects by this site up to the year 2025.

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Bright Comets

These are the top 10 brightest comets currently visible in the sky. Please keep in mind that, since comets are highly dynamic objects, the magnitude reported here is an approximation that sometimes can be largely different from the actual value. 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 (see all the 74 tracked comets...).

Comet MagnitudeMag ConstellationConst
object currently below the horizon C/2015 G2 (MASTER) 9.94 Aquarius Aqr Show sky map
current altitude greater than 30 degrees above the horizon C/2014 Q2 (Lovejoy) 10.19 Cassiopeia Cas Show sky map
current altitude greater than 30 degrees above the horizon C/2014 Q1 (PANSTARRS) 12.43 Pisces Psc Show sky map
current altitude less than 30 degrees above the horizon C/2013 US10 12.45 Aquarius Aqr Show sky map
current altitude greater than 30 degrees above the horizon 19P/Borrelly 12.82 Cetus Cet Show sky map
current altitude less than 30 degrees above the horizon C/2013 A1 (Siding Spring) 13.33 Draco Dra Show sky map
current altitude less than 30 degrees above the horizon C/2012 K1 (PANSTARRS) 14.08 Cetus Cet Show sky map
current altitude less than 30 degrees above the horizon 88P/Howell 14.59 Aquarius Aqr Show sky map
object currently below the horizon 29P/Schwassmann-Wachmann 1 14.63 Scorpius Sco Show sky map
current altitude greater than 30 degrees above the horizon C/2015 F5 (SWAN-Xingming) 14.96 Auriga Aur Show sky map
» Full list of tracked comets...
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Brightest Asteroids

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 (see all the 29 tracked asteroids...)..

Asteroid MagnitudeMag ConstellationConst
current altitude less than 30 degrees above the horizon Vesta 7.98 Aquarius Show sky map
object currently below the horizon Ceres 8.86 Capricornus Show sky map
object currently below the horizon Pallas 9.54 Hercules Show sky map
object currently below the horizon Massalia 9.58 Virgo Show sky map
object currently below the horizon Parthenope 9.76 Virgo Show sky map
current altitude less than 30 degrees above the horizon Juno 10.02 Cancer Show sky map
object currently below the horizon Iris 10.10 Sextans Show sky map
current altitude less than 30 degrees above the horizon Eunomia 10.34 Aquarius Show sky map
object currently below the horizon Melpomene 10.34 Libra Show sky map
current altitude greater than 30 degrees above the horizon Hebe 10.66 Taurus Show sky map
» Full list of tracked asteroids...
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Major Planets

Click on each line to go to the planet's detail page, or click the blue 'full screen' icon () to view an accurate deep sky chart showing the planet's current position in real time (go to the major bodies section...).

Planet MagnitudeMag ConstellationConst
current altitude greater than 30 degrees above the horizon Venus -4.13 Taurus Show sky map
current altitude less than 30 degrees above the horizon Jupiter -2.15 Cancer Show sky map
current altitude greater than 30 degrees above the horizon Mercury -0.85 Aries Show sky map
object currently below the horizon Saturn 1.02 Scorpius Show sky map
current altitude greater than 30 degrees above the horizon Mars 1.43 Aries Show sky map
current altitude greater than 30 degrees above the horizon Uranus 5.92 Pisces Show sky map
current altitude less than 30 degrees above the horizon Neptune 7.93 Aquarius Show sky map
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Current Close Conjunctions

In astronomy a conjunction is defined as a close apparent alignment in the sky between two or more celestial bodies. Here we list, in real time, the closest conjunctions happening between objects we are currently tracking, in order of increasing separation. The green arrow indicates that the objects are currently getting closer, while the red arrow means that the objects are increasing their apparent separation.

Object 1 Object 2 Separation
Mars Maven 0° 00’ 01” Show sky map
67P/Churyumov-Gerasimenko Rosetta 0° 00’ 51” Show sky map
Pluto New Horizons 0° 18’ 40” Show sky map
88P/Howell Vesta 0° 34’ 47” Show sky map
6P/d'Arrest Irene 1° 07’ 08” Show sky map
P/2014 L2 (NEOWISE) Astraea 1° 26’ 07” Show sky map
119P/Parker-Hartley 269P/Jedicke 1° 30’ 57” Show sky map
C/2015 F2 (Polonia) 56P/Slaughter-Burnham 1° 37’ 07” Show sky map
C/2014 Y1 (PANSTARRS) 108P/Ciffreo 1° 55’ 33” Show sky map

Current Oppositions

A Solar System object is said to be "at opposition" when it is visible in the opposite direction with respect to the Sun. Oppositions are usually favourable conditions for observation, since in this configuration objects are visible for most part of the night and they are usually closer to Earth. Below we list all the objects that have an elongation greater than 160&geg; with respect to the Sun.

Object MagnitudeMag ElongationElong Distance (AU)
C/2014 F3 (Sheppard-Trujillo) 22.19 172.9° 11.164573 Show sky map
210P/Christensen 21.92 160.2° 2.285002 Show sky map
Parthenope 9.76 171.6° 1.504571 Show sky map
Melpomene 10.34 163.6° 1.761352 Show sky map
Fortuna 10.90 175.9° 1.824703 Show sky map
Massalia 9.58 172.5° 1.470824 Show sky map
Ganymed 13.04 161.2° 1.642069 Show sky map