OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

11.96°S, 44.75°WAmerica/Sao_Paulo

Daylight+33.4°

15:34:57

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 8m of true darkness · 11h 33m total night

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

TRUE DARK SKY WINDOW

Sunset17:56

Civil Dusk18:18

Nautical18:43

Full Dark19:09

Nadir23:43

Dark Ends04:17

Nautical04:42

Civil Dawn05:07

Sunrise05:29

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-2.8°

DISTANCE379,844 km

Moonrise15:46

Moonset04:01

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	32.2°	256°	Libra	05:20	11:37	17:53	Naked Eye
Jupiter♃	Below Horizon	-2.0	-31.6°	280°	Leo	01:42	07:34	13:23	Naked Eye
Saturn♄	Below Horizon	0.3	-13.4°	92°	Pisces	16:29	22:29	04:33	Naked Eye
Mars♂	Below Horizon	1.0	-40.1°	283°	Cancer	01:11	06:59	12:46	Naked Eye
Mercury☿	Optimal Visibility	0.4	52.1°	251°	Libra	06:41	13:01	19:21	Binoculars
Uranus♅	Below Horizon	5.6	-65.9°	65°	Taurus	20:17	02:00	07:47	Binoculars
Neptune♆	Below Horizon	7.8	-5.6°	92°	Pisces	15:58	21:59	04:05	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

RISES15:46

BEST TIME21:54N · 74° high

SETS04:01

Reaches about 74° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:42

BEST TIME07:34N · 64° high

SETS13:23

Reaches about 64° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:29

BEST TIME22:29N · 77° high

SETS04:33

Reaches about 77° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:20

BEST TIME11:37S · 84° high

SETS17:53

Reaches about 84° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:11

BEST TIME06:59N · 60° high

SETS12:46

Reaches about 60° 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.