OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

12.68°S, 49.08°WAmerica/Sao_Paulo

Daylight+56.0°

14:19:35

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 6m of true darkness · 11h 32m total night

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

TRUE DARK SKY WINDOW

Sunset18:14

Civil Dusk18:36

Nautical19:01

Full Dark19:27

Nadir00:00

Dark Ends04:33

Nautical04:59

Civil Dawn05:24

Sunrise05:46

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-24.9°

DISTANCE380,126 km

Moonrise16:04

Moonset03:39

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	54.5°	257°	Libra	05:36	11:54	18:11	Naked Eye
Jupiter♃	Below Horizon	-2.0	-9.3°	283°	Leo	02:00	07:51	13:40	Naked Eye
Saturn♄	Below Horizon	0.3	-36.1°	98°	Pisces	16:46	22:46	04:50	Naked Eye
Mars♂	Below Horizon	1.0	-18.1°	285°	Cancer	01:30	07:17	13:02	Naked Eye
Mercury☿	Optimal Visibility	0.4	73.2°	239°	Libra	06:57	13:18	19:39	Binoculars
Uranus♅	Below Horizon	5.6	-81.6°	359°	Taurus	20:36	02:21	08:03	Binoculars
Neptune♆	Below Horizon	7.8	-28.4°	98°	Pisces	16:15	22:17	04:22	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

RISES16:04

BEST TIME22:12N · 73° high

SETS03:39

Reaches about 73° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:00

BEST TIME07:51N · 63° high

SETS13:40

Reaches about 63° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:46

BEST TIME22:46N · 76° high

SETS04:50

Reaches about 76° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:36

BEST TIME11:54S · 85° high

SETS18:11

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

RISES01:30

BEST TIME07:17N · 59° high

SETS13:02

Reaches about 59° 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.