SKY · DEEP-SKY · ARGENTINA
Deep-Sky Objects Tonight — Buenos Aires
Tonight from Buenos Aires, the best-placed deep-sky showpiece is Sombrero Galaxy (M104), riding about 67° up in the northern sky. Here's the full list of galaxies, nebulae and clusters worth hunting from Buenos Aires tonight — and how dark a sky each one needs.
The Moon is nearly out of the way — dark skies for faint objects.
Best placed over Buenos Aires tonight
Ranked by how high each climbs in tonight's dark sky from Buenos Aires. The higher an object is, the less atmosphere you look through — and the better it shows.
An edge-on galaxy with a dark dust lane like a hat brim — a small-telescope classic. In Virgo.
One of the brightest globular clusters, low in the south for northern observers. In Sagittarius.
A bright, sprawling star cluster low in the southern Milky Way — naked-eye from dark skies. In Scorpius.
A bright nebula in the heart of the Milky Way — superb in binoculars from a dark southern-sky view. In Sagittarius.
A delicate nebula split by dark dust lanes, near the Lagoon in the rich Sagittarius star fields. In Sagittarius.
Home of the famous "Pillars of Creation"; the surrounding cluster is an easy binocular sight. In Serpens.
A dense, rich open cluster shaped like a flight of ducks — lovely in binoculars. In Scutum.
A compact, bright autumn globular cluster, easy to find off the Great Square of Pegasus. In Pegasus.
A bright planetary nebula, an easy and rewarding binocular and small-scope target. In Vulpecula.
A bright spring globular with half a million stars — a fine binocular and small-scope target. In Canes Venatici.
A swarm of stars filling a binocular field; a faint haze to the naked eye under dark skies. In Cancer.
A large, low-surface-brightness spiral — needs a genuinely dark, Moonless sky, then rewarding in binoculars. In Triangulum.
A tiny, perfect smoke ring — the glowing shell of a dying star; a small-telescope favourite. In Lyra.
The nearest big galaxy — a faint elongated smudge to the naked eye from a dark sky, the most distant thing most people ever see unaided. In Andromeda.
A tight, bright knot of blue stars — obvious to the naked eye, dazzling in binoculars. In Taurus.
A face-on spiral with a companion — its spiral arms are visible in a modest telescope from a dark site. In Canes Venatici.
A glowing stellar nursery in Orion’s sword — visible to the naked eye, stunning in binoculars, a showpiece in any telescope. In Orion.
The finest globular cluster for northern observers — a fuzzy ball of hundreds of thousands of stars. In Hercules.
Out of reach from Buenos Aires tonight
These showpieces are either below Buenos Aires's horizon during tonight's dark hours, or never rise from this latitude at all — useful to know before you go looking.
Buenos Aires right now
Faint galaxies and nebulae need a genuinely dark, cloudless, Moonless sky — a quick check of tonight's cloud cover and the stargazing verdict for Buenos Airestells you whether it's worth the trip out of town.
More sky over Buenos Aires
SEE IT ON THE MAP
Watch the day/night line over Buenos Aires to plan your dark-sky window.