OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

22.66°S, 50.41°WAmerica/Sao_Paulo

Daylight+72.9°

13:00:32

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 37m of true darkness · 11h 13m total night

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

TRUE DARK SKY WINDOW

Sunset18:29

Civil Dusk18:52

Nautical19:19

Full Dark19:47

Nadir00:05

Dark Ends04:24

Nautical04:51

Civil Dawn05:19

Sunrise05:42

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-42.0°

DISTANCE380,422 km

Moonrise16:11

Moonset03:45

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	74.9°	285°	Libra	05:27	11:59	18:31	Naked Eye
Jupiter♃	Rising / Setting	-2.0	7.0°	289°	Leo	02:20	07:57	13:34	Naked Eye
Saturn♄	Below Horizon	0.3	-52.3°	120°	Pisces	16:52	22:51	04:55	Naked Eye
Mars♂	Below Horizon	1.0	-1.4°	289°	Cancer	01:51	07:22	12:53	Naked Eye
Mercury☿	Optimal Visibility	0.4	84.3°	74°	Libra	06:45	13:23	20:02	Binoculars
Uranus♅	Below Horizon	5.6	-70.1°	269°	Taurus	20:58	02:27	07:52	Binoculars
Neptune♆	Below Horizon	7.8	-45.1°	116°	Pisces	16:20	22:22	04:28	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

RISES16:11

BEST TIME22:18N · 63° high

SETS03:45

Reaches about 63° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:20

BEST TIME07:57N · 53° high

SETS13:34

Reaches about 53° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:52

BEST TIME22:51N · 66° high

SETS04:55

Reaches about 66° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:27

BEST TIME11:59N · 85° high

SETS18:31

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

RISES01:51

BEST TIME07:22N · 49° high

SETS12:53

Reaches about 49° 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.