OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

29.93°S, 50.13°WAmerica/Sao_Paulo

Daylight+50.6°

14:35:08

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 9m of true darkness · 10h 57m total night

DaylightCivil (−6°)Nautical (−12°)Astro (−18°)Dark Sky (<−18°)

TRUE DARK SKY WINDOW

Sunset18:35

Civil Dusk19:00

Nautical19:30

Full Dark20:00

Nadir00:04

Dark Ends04:08

Nautical04:39

Civil Dawn05:08

Sunrise05:33

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION93%

ALTITUDE-20.3°

DISTANCE380,067 km

Moonrise16:11

Moonset03:45

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

All times calibrated to America/Sao_Paulo

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	52.3°	279°	Libra	05:13	11:58	18:42	Naked Eye
Jupiter♃	Below Horizon	-2.0	-15.1°	278°	Leo	02:24	07:56	13:24	Naked Eye
Saturn♄	Below Horizon	0.3	-29.6°	107°	Pisces	16:52	22:50	04:53	Naked Eye
Mars♂	Below Horizon	1.0	-24.1°	277°	Cancer	01:59	07:21	12:40	Naked Eye
Mercury☿	Optimal Visibility	0.4	71.4°	295°	Libra	06:29	13:22	20:15	Binoculars
Uranus♅	Below Horizon	5.6	-80.6°	164°	Taurus	21:11	02:22	07:37	Binoculars
Neptune♆	Below Horizon	7.8	-22.3°	105°	Pisces	16:18	22:21	04:27	Telescope

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

RISES16:11

BEST TIME22:17N · 56° high

SETS03:45

Reaches about 56° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:24

BEST TIME07:56N · 46° high

SETS13:24

Reaches about 46° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:52

BEST TIME22:50N · 59° high

SETS04:53

Reaches about 59° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:13

BEST TIME11:58N · 78° high

SETS18:42

Reaches about 78° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · Good height

RISES01:59

BEST TIME07:21N · 42° high

SETS12:40

Reaches about 42° 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

0 / 6 targets logged tonight

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.