OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

23.66°S, 47.22°WAmerica/Sao_Paulo

Daylight+44.6°

14:57:49

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 33m of true darkness · 11h 11m total night

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

TRUE DARK SKY WINDOW

Sunset18:17

Civil Dusk18:40

Nautical19:08

Full Dark19:36

Nadir23:52

Dark Ends04:09

Nautical04:37

Civil Dawn05:05

Sunrise05:28

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-13.6°

DISTANCE379,982 km

Moonrise15:58

Moonset03:32

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	45.0°	268°	Libra	05:12	11:46	18:20	Naked Eye
Jupiter♃	Below Horizon	-2.0	-22.0°	276°	Leo	02:05	07:44	13:20	Naked Eye
Saturn♄	Below Horizon	0.3	-23.5°	100°	Pisces	16:40	22:39	04:42	Naked Eye
Mars♂	Below Horizon	1.0	-31.0°	277°	Cancer	01:38	07:09	12:39	Naked Eye
Mercury☿	Optimal Visibility	0.4	65.2°	271°	Libra	06:30	13:11	19:51	Binoculars
Uranus♅	Below Horizon	5.6	-79.1°	102°	Taurus	20:47	02:10	07:37	Binoculars
Neptune♆	Below Horizon	7.8	-16.0°	98°	Pisces	16:07	22:09	04:15	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

RISES15:58

BEST TIME22:05N · 62° high

SETS03:32

Reaches about 62° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:05

BEST TIME07:44N · 52° high

SETS13:20

Reaches about 52° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:40

BEST TIME22:39N · 65° high

SETS04:42

Reaches about 65° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:12

BEST TIME11:46N · 84° high

SETS18:20

Reaches about 84° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:38

BEST TIME07:09N · 48° high

SETS12:39

Reaches about 48° 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.