OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

7.80°S, 36.63°WAmerica/Sao_Paulo

Daylight+46.0°

14:08:47

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 18m of true darkness · 11h 40m total night

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

TRUE DARK SKY WINDOW

Sunset17:20

Civil Dusk17:42

Nautical18:06

Full Dark18:31

Nadir23:10

Dark Ends03:49

Nautical04:14

Civil Dawn04:39

Sunrise05:00

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-15.3°

DISTANCE380,166 km

Moonrise15:11

Moonset02:47

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	43.9°	252°	Libra	04:53	11:04	17:15	Naked Eye
Jupiter♃	Below Horizon	-2.0	-17.7°	283°	Leo	01:05	07:02	12:55	Naked Eye
Saturn♄	Below Horizon	0.3	-26.9°	92°	Pisces	15:56	21:57	04:01	Naked Eye
Mars♂	Below Horizon	1.0	-26.1°	286°	Cancer	00:33	06:27	12:19	Naked Eye
Mercury☿	Optimal Visibility	0.4	62.5°	239°	Libra	06:15	12:28	18:42	Binoculars
Uranus♅	Below Horizon	5.6	-73.7°	34°	Taurus	19:38	01:28	07:21	Binoculars
Neptune♆	Below Horizon	7.8	-19.2°	93°	Pisces	15:25	21:27	03:32	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

RISES15:11

BEST TIME21:21N · 78° high

SETS02:47

Reaches about 78° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:05

BEST TIME07:02N · 68° high

SETS12:55

Reaches about 68° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES15:56

BEST TIME21:57N · 81° high

SETS04:01

Reaches about 81° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES04:53

BEST TIME11:04S · 80° high

SETS17:15

Reaches about 80° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:33

BEST TIME06:27N · 64° high

SETS12:19

Reaches about 64° 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.