OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

23.09°S, 48.38°WAmerica/Sao_Paulo

Daylight+51.6°

14:31:55

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 35m of true darkness · 11h 12m total night

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

TRUE DARK SKY WINDOW

Sunset18:21

Civil Dusk18:44

Nautical19:12

Full Dark19:39

Nadir23:57

Dark Ends04:15

Nautical04:43

Civil Dawn05:10

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-20.4°

DISTANCE380,079 km

Moonrise16:03

Moonset03:37

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	52.1°	270°	Libra	05:18	11:51	18:24	Naked Eye
Jupiter♃	Below Horizon	-2.0	-14.9°	279°	Leo	02:09	07:49	13:25	Naked Eye
Saturn♄	Below Horizon	0.3	-30.6°	103°	Pisces	16:44	22:43	04:47	Naked Eye
Mars♂	Below Horizon	1.0	-23.9°	280°	Cancer	01:42	07:14	12:45	Naked Eye
Mercury☿	Optimal Visibility	0.4	72.2°	273°	Libra	06:36	13:15	19:54	Binoculars
Uranus♅	Below Horizon	5.6	-85.9°	121°	Taurus	20:50	02:15	07:43	Binoculars
Neptune♆	Below Horizon	7.8	-23.0°	101°	Pisces	16:12	22:14	04:20	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

RISES16:03

BEST TIME22:09N · 63° high

SETS03:37

Reaches about 63° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:09

BEST TIME07:49N · 53° high

SETS13:25

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

RISES16:44

BEST TIME22:43N · 66° high

SETS04:47

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

RISES05:18

BEST TIME11:51N · 85° high

SETS18:24

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

RISES01:42

BEST TIME07:14N · 49° high

SETS12:45

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.