OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

6.89°S, 35.18°WAmerica/Fortaleza

Daylight+40.1°

14:26:42

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

Sunset17:14

Civil Dusk17:35

Nautical18:00

Full Dark18:25

Nadir23:04

Dark Ends03:44

Nautical04:09

Civil Dawn04:34

Sunrise04:55

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-9.6°

DISTANCE380,099 km

Moonrise15:05

Moonset02:41

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/Fortaleza

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	38.1°	253°	Libra	04:49	10:58	17:08	Naked Eye
Jupiter♃	Below Horizon	-2.0	-23.3°	283°	Leo	00:58	06:56	12:50	Naked Eye
Saturn♄	Below Horizon	0.3	-21.0°	91°	Pisces	15:50	21:51	03:55	Naked Eye
Mars♂	Below Horizon	1.0	-31.5°	287°	Cancer	00:26	06:21	12:14	Naked Eye
Mercury☿	Optimal Visibility	0.4	56.9°	242°	Libra	06:10	12:23	18:35	Binoculars
Uranus♅	Below Horizon	5.6	-69.2°	45°	Taurus	19:31	01:22	07:17	Binoculars
Neptune♆	Below Horizon	7.8	-13.3°	92°	Pisces	15:20	21:21	03:27	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

RISES15:05

BEST TIME21:15N · 79° high

SETS02:41

Reaches about 79° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES00:58

BEST TIME06:56N · 69° high

SETS12:50

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

RISES15:50

BEST TIME21:51N · 82° high

SETS03:55

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

RISES04:49

BEST TIME10:58S · 79° high

SETS17:08

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

RISES00:26

BEST TIME06:21N · 65° high

SETS12:14

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.