OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

9.52°S, 46.98°WAmerica/Sao_Paulo

Daylight+69.0°

13:17:12

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 14m of true darkness · 11h 37m total night

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

TRUE DARK SKY WINDOW

Sunset18:03

Civil Dusk18:25

Nautical18:50

Full Dark19:15

Nadir23:52

Dark Ends04:28

Nautical04:54

Civil Dawn05:19

Sunrise05:40

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-37.8°

DISTANCE380,359 km

Moonrise15:54

Moonset03:30

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	66.2°	247°	Libra	05:32	11:45	17:59	Naked Eye
Jupiter♃	Rising / Setting	-2.0	3.9°	285°	Leo	01:51	07:43	13:35	Naked Eye
Saturn♄	Below Horizon	0.3	-49.8°	99°	Pisces	16:37	22:38	04:42	Naked Eye
Mars♂	Below Horizon	1.0	-4.4°	287°	Cancer	01:19	07:08	12:58	Naked Eye
Mercury☿	Optimal Visibility	0.4	78.5°	188°	Libra	06:53	13:10	19:26	Binoculars
Uranus♅	Below Horizon	5.6	-72.5°	313°	Taurus	20:22	02:13	08:00	Binoculars
Neptune♆	Below Horizon	7.8	-42.1°	99°	Pisces	16:07	22:08	04:14	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

RISES15:54

BEST TIME22:04N · 76° high

SETS03:30

Reaches about 76° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:51

BEST TIME07:43N · 66° high

SETS13:35

Reaches about 66° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:37

BEST TIME22:38N · 79° high

SETS04:42

Reaches about 79° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:32

BEST TIME11:45S · 82° high

SETS17:59

Reaches about 82° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:19

BEST TIME07:08N · 63° high

SETS12:58

Reaches about 63° 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.