OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

11.11°S, 48.22°WAmerica/Sao_Paulo

Daylight+65.4°

13:37:34

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 10m of true darkness · 11h 34m total night

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

TRUE DARK SKY WINDOW

Sunset18:09

Civil Dusk18:31

Nautical18:56

Full Dark19:22

Nadir23:57

Dark Ends04:32

Nautical04:57

Civil Dawn05:22

Sunrise05:44

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-34.0°

DISTANCE380,283 km

Moonrise16:00

Moonset03:35

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	63.2°	252°	Libra	05:35	11:50	18:06	Naked Eye
Jupiter♃	Rising / Setting	-2.0	0.2°	285°	Leo	01:58	07:48	13:38	Naked Eye
Saturn♄	Below Horizon	0.3	-45.7°	100°	Pisces	16:43	22:43	04:47	Naked Eye
Mars♂	Below Horizon	1.0	-8.5°	287°	Cancer	01:24	07:13	13:01	Naked Eye
Mercury☿	Optimal Visibility	0.4	78.8°	208°	Libra	06:56	13:15	19:33	Binoculars
Uranus♅	Below Horizon	5.6	-76.3°	318°	Taurus	20:30	02:18	08:02	Binoculars
Neptune♆	Below Horizon	7.8	-38.0°	99°	Pisces	16:11	22:13	04:19	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

RISES16:00

BEST TIME22:09N · 75° high

SETS03:35

Reaches about 75° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:58

BEST TIME07:48N · 65° high

SETS13:38

Reaches about 65° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:43

BEST TIME22:43N · 78° high

SETS04:47

Reaches about 78° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:35

BEST TIME11:50S · 83° high

SETS18:06

Reaches about 83° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:24

BEST TIME07:13N · 61° high

SETS13:01

Reaches about 61° 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.