OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

23.03°S, 50.73°WAmerica/Sao_Paulo

Daylight+66.0°

13:35:55

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 36m of true darkness · 11h 12m total night

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

TRUE DARK SKY WINDOW

Sunset18:30

Civil Dusk18:54

Nautical19:21

Full Dark19:49

Nadir00:07

Dark Ends04:24

Nautical04:52

Civil Dawn05:19

Sunrise05:43

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION92%

ALTITUDE-34.7°

DISTANCE380,289 km

Moonrise16:12

Moonset03:46

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	67.1°	278°	Libra	05:27	12:00	18:33	Naked Eye
Jupiter♃	Below Horizon	-2.0	-0.1°	285°	Leo	02:21	07:58	13:35	Naked Eye
Saturn♄	Below Horizon	0.3	-45.1°	113°	Pisces	16:54	22:53	04:56	Naked Eye
Mars♂	Below Horizon	1.0	-9.1°	285°	Cancer	01:53	07:23	12:54	Naked Eye
Mercury☿	Optimal Visibility	0.4	86.7°	309°	Libra	06:45	13:25	20:04	Binoculars
Uranus♅	Below Horizon	5.6	-78.0°	263°	Taurus	21:00	02:28	07:52	Binoculars
Neptune♆	Below Horizon	7.8	-37.7°	110°	Pisces	16:21	22:23	04:29	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

RISES16:12

BEST TIME22:19N · 63° high

SETS03:46

Reaches about 63° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:21

BEST TIME07:58N · 53° high

SETS13:35

Reaches about 53° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:54

BEST TIME22:53N · 66° high

SETS04:56

Reaches about 66° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:27

BEST TIME12:00N · 85° high

SETS18:33

Reaches about 85° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:53

BEST TIME07:23N · 49° high

SETS12:54

Reaches about 49° 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.