OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

34.70°S, 58.47°WAmerica/Argentina/Buenos_Aires
Daylight+50.8°
14:57:38
Fri, Oct 23, 2026
PHOTOMETRIC TWILIGHT SPECTRUM7h 45m of true darkness · 10h 45m total night
DaylightCivil (−6°)Nautical (−12°)Astro (−18°)Dark Sky (<−18°)
TRUE DARK SKY WINDOW
Sunset19:15
Civil Dusk19:41
Nautical20:12
Full Dark20:45
Nadir00:37
Dark Ends04:30
Nautical05:03
Civil Dawn05:34
Sunrise06:00
LIVE REAL-TIME OBSERVATION
SunsetSunrise
LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry
30° ALT60° ALTZENITHNESW Vega Arcturus Altair Spica Antares Venus (-4.3) Mercury (0.4)
LUNAR EPHEMERISWaxing Gibbous
ILLUMINATION93%
ALTITUDE-21.8°
DISTANCE379,983 km
Moonrise16:47
Moonset04:19
HorizonBelow
LUNAR INTERFERENCE INDEX0% · Minimal Lunar Glare

Sky background remains dark; faint nebulae and distant galaxies are distinct.

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index
42/100
Fair Stargazing

Partial haze or lunar wash. Bright clusters, double stars, and prominent planets remain well visible.

CLOUD COVER15%
HUMIDITY50%
VISIBILITY18 km
DEW POINT10.8°C
PLANETARY EPHEMERIS & ALMANAC

Visible Planets Tonight

PLANETSTATUSMAGNITUDEALTITUDEAZIMUTHCONSTELLATIONRISETRANSITSETEQUIPMENT
Venus♀ Optimal Visibility -4.353.4°288°Libra05:3812:3119:24Naked Eye
Jupiter♃ Below Horizon -2.0-13.5°278°Leo03:0808:2913:50Naked Eye
Saturn♄ Below Horizon 0.3-30.1°112°Pisces17:2623:2405:26Naked Eye
Mars♂ Below Horizon 1.0-22.4°277°Cancer02:4107:5413:05Naked Eye
Mercury☿ Optimal Visibility 0.470.7°311°Libra06:5213:5620:59Binoculars
Uranus♅ Below Horizon 5.6-76.2°180°Taurus21:5402:5908:00Binoculars
Neptune♆ Below Horizon 7.8-23.2°108°Pisces16:5122:5405:01Telescope
TONIGHT'S VIEWING SCHEDULE

When & Where to Look Tonight

A simple guide to when each object is above your horizon. No astronomy chart reading required.

BEST TIMEHighest in your sky
The MoonNaked Eye · High in the sky
RISES16:47
BEST TIME22:51N · 51° high
SETS04:19
Reaches about 51° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.
JupiterNaked Eye · Good height
RISES03:08
BEST TIME08:29N · 41° high
SETS13:50
Reaches about 41° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.
SaturnNaked Eye · High in the sky
RISES17:26
BEST TIME23:24N · 54° high
SETS05:26
Reaches about 54° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.
VenusNaked Eye · High in the sky
RISES05:38
BEST TIME12:31N · 73° high
SETS19:24
Reaches about 73° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.
MarsNaked Eye · Good height
RISES02:41
BEST TIME07:54N · 37° high
SETS13:05
Reaches about 37° above the horizon at its highest point.Distinctive crimson hue; polar ice cap discernible near opposition.
OBSERVING LOG & TARGET LIST

Tonight's Prime Deep-Sky Targets

M31 / NGC 224 · Andromeda

Andromeda Galaxy

Spiral Galaxy (2.5M ly)

Our galactic neighbor; visible as a ghostly oval smudge with dense radiant stellar core.

M45 · Taurus

The Pleiades (Seven Sisters)

Open Star Cluster

Breathtaking blue diamond cluster enshrouded in delicate interstellar reflection nebulosity.

M42 / NGC 1976 · Orion

Great Orion Nebula

Diffuse Emission Nebula

Star nursery harboring the brilliant Trapezium cluster with sprawling bat-wing filaments.

NGC 869 & NGC 884 · Perseus

The Double Cluster

Twin Open Clusters

Pair of spectacular shimmering jewel-boxes bursting with ruby supergiant stars.

M13 / NGC 6205 · Hercules

Great Globular Cluster in Hercules

Globular Cluster (300k stars)

Massive beehive of ancient stars packed tightly together into a blazing central ball.

M57 / NGC 6720 · Lyra

The Ring Nebula

Planetary Nebula

Delicate glowing smoke-ring left behind by a dying star 2,500 light-years away.