OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

22.82°S, 45.31°WAmerica/Sao_Paulo

Daylight+42.9°

14:58:11

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM8h 36m of true darkness · 11h 12m total night

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

TRUE DARK SKY WINDOW

Sunset18:09

Civil Dusk18:32

Nautical18:59

Full Dark19:27

Nadir23:45

Dark Ends04:03

Nautical04:31

Civil Dawn04:58

Sunrise05:21

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-11.8°

DISTANCE379,981 km

Moonrise15:50

Moonset03:24

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	43.2°	266°	Libra	05:06	11:39	18:11	Naked Eye
Jupiter♃	Below Horizon	-2.0	-23.8°	276°	Leo	01:56	07:36	13:13	Naked Eye
Saturn♄	Below Horizon	0.3	-21.8°	98°	Pisces	16:32	22:31	04:34	Naked Eye
Mars♂	Below Horizon	1.0	-32.7°	277°	Cancer	01:29	07:02	12:33	Naked Eye
Mercury☿	Optimal Visibility	0.4	63.3°	269°	Libra	06:24	13:03	19:42	Binoculars
Uranus♅	Below Horizon	5.6	-77.4°	96°	Taurus	20:38	02:02	07:31	Binoculars
Neptune♆	Below Horizon	7.8	-14.2°	97°	Pisces	15:59	22:01	04:08	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

RISES15:50

BEST TIME21:57N · 63° high

SETS03:24

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

JupiterNaked Eye · High in the sky

RISES01:56

BEST TIME07:36N · 53° high

SETS13:13

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

RISES16:32

BEST TIME22:31N · 66° high

SETS04:34

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

RISES05:06

BEST TIME11:39N · 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

RISES01:29

BEST TIME07:02N · 49° high

SETS12:33

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.