OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

6.85°S, 37.62°WAmerica/Sao_Paulo

Daylight+45.0°

14:16:31

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 20m of true darkness · 11h 42m total night

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

TRUE DARK SKY WINDOW

Sunset17:23

Civil Dusk17:45

Nautical18:09

Full Dark18:34

Nadir23:14

Dark Ends03:54

Nautical04:19

Civil Dawn04:44

Sunrise05:05

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-14.5°

DISTANCE380,137 km

Moonrise15:15

Moonset02:51

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	42.8°	252°	Libra	04:58	11:08	17:18	Naked Eye
Jupiter♃	Below Horizon	-2.0	-18.4°	283°	Leo	01:08	07:06	13:00	Naked Eye
Saturn♄	Below Horizon	0.3	-26.0°	92°	Pisces	16:00	22:00	04:05	Naked Eye
Mars♂	Below Horizon	1.0	-26.7°	287°	Cancer	00:36	06:31	12:24	Naked Eye
Mercury☿	Optimal Visibility	0.4	61.2°	238°	Libra	06:20	12:32	18:44	Binoculars
Uranus♅	Below Horizon	5.6	-72.4°	35°	Taurus	19:41	01:32	07:27	Binoculars
Neptune♆	Below Horizon	7.8	-18.3°	93°	Pisces	15:29	21:31	03:36	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

RISES15:15

BEST TIME21:25N · 79° high

SETS02:51

Reaches about 79° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:08

BEST TIME07:06N · 69° high

SETS13:00

Reaches about 69° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:00

BEST TIME22:00N · 82° high

SETS04:05

Reaches about 82° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES04:58

BEST TIME11:08S · 79° high

SETS17:18

Reaches about 79° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:36

BEST TIME06:31N · 65° high

SETS12:24

Reaches about 65° 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.