OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

26.82°S, 49.29°WAmerica/Sao_Paulo

Daylight+31.8°

16:01:42

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 22m of true darkness · 11h 4m total night

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

TRUE DARK SKY WINDOW

Sunset18:29

Civil Dusk18:53

Nautical19:21

Full Dark19:50

Nadir00:01

Dark Ends04:12

Nautical04:41

Civil Dawn05:09

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-1.5°

DISTANCE379,744 km

Moonrise16:07

Moonset04:13

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	32.6°	265°	Libra	05:15	11:55	18:33	Naked Eye
Jupiter♃	Below Horizon	-2.0	-34.9°	269°	Leo	02:17	07:52	13:24	Naked Eye
Saturn♄	Below Horizon	0.3	-10.5°	94°	Pisces	16:48	22:47	04:50	Naked Eye
Mars♂	Below Horizon	1.0	-43.8°	269°	Cancer	01:51	07:18	12:42	Naked Eye
Mercury☿	Optimal Visibility	0.4	52.5°	270°	Libra	06:32	13:19	20:05	Binoculars
Uranus♅	Below Horizon	5.6	-66.0°	99°	Taurus	21:01	02:18	07:39	Binoculars
Neptune♆	Below Horizon	7.8	-3.0°	92°	Pisces	16:15	22:17	04:24	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

RISES16:07

BEST TIME22:13N · 59° high

SETS04:13

Reaches about 59° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:17

BEST TIME07:52N · 49° high

SETS13:24

Reaches about 49° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:48

BEST TIME22:47N · 62° high

SETS04:50

Reaches about 62° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:15

BEST TIME11:55N · 81° high

SETS18:33

Reaches about 81° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:51

BEST TIME07:18N · 45° high

SETS12:42

Reaches about 45° 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.